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15.2.2019 EN Official Journal of the European Union L 45/1
II
(Non-legislative acts)
ACTS ADOPTED BY BODIES CREATED BY
INTERNATIONAL AGREEMENTS
Only the original UN/ECE texts have legal effect under international public law. The status and date of entry into force of this Regulation
should be checked in the latest version of the UN/ECE status document TRANS/WP.29/343, available at:
http://www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29fdocstts.html
Regulation No 83 of the Economic Commission for Europe of the United Nations (UNECE) —
Uniform provisions concerning the approval of vehicles with regard to the emission of pollutants
according to engine fuel requirements [2019/253]
Incorporating all valid text up to:
Supplement 7 to the 07 series of amendments — Date of entry into force: 29 December 2018
CONTENTS
REGULATION
1. Scope
2. Definitions
3. Application for approval
4. Approval
5. Specifications and tests
6. Modifications of the vehicle type
7. Extensions to type approvals
8. Conformity of production (COP)
9. In-service conformity
10. Penalties for non-conformity of production
11. Production definitively discontinued
12. Transitional provisions
13. Names and addresses of Technical Services responsible for conducting approval tests, and of Type Approval
Authorities
Appendix 1 — Procedure for verifying the conformity of production requirements if the production standard
deviation given by the manufacturer is satisfactory
Appendix 2 — Procedure for verifying the conformity of production requirements if the production standard
deviation given by the manufacturer is either not satisfactory or not availableL 45/2 EN Official Journal of the European Union 15.2.2019
Appendix 3 — In-service conformity check
Appendix 4 — Statistical procedure for tailpipe emissions in-service conformity testing
Appendix 5 — Responsibilities for in-service conformity
Appendix 6 — Requirements for vehicles that use a reagent for the exhaust after-treatment system
ANNEXES
1 Engine and vehicle characteristics and information concerning the conduct of tests
2 Communication
3 Arrangements of the approval mark
4a Type I test
5 Type II test
6 Type III test
7 Type IV test
8 Type VI test
9 Type V test
10 Specifications of reference fuels
10a Specifications of gaseous reference fuels
11 On-Board Diagnostics (OBD) for motor vehicles
12 Granting of an ECE type approval for a vehicle fuelled by LPG or NG/biomethane
13 Emissions test procedure for a vehicle equipped with a periodically regenerating system
14 Emissions test procedure for Hybrid Electric Vehicles (HEV)
1. SCOPE
This Regulation establishes technical requirements for the type approval of motor vehicles.
In addition, this Regulation lays down rules for in-service conformity, durability of pollution control
devices and On-Board Diagnostic (OBD) systems.
1.1. This Regulation shall apply to vehicles of categories M , M , N and N with a reference mass not exceeding
1 2 1 2
2 610 kg (1).
At the manufacturer's request, type approval granted under this Regulation may be extended from vehicles
mentioned above to special purpose vehicles of categories M , M , N and N regardless of their reference
1 2 1 2
mass. The manufacturer shall demonstrate to the Type Approval Authority which granted the type
approval that the vehicle in question is a special purpose vehicle.
(1) As defined in the Consolidated Resolution on the Construction of Vehicles (R.E.3), document ECE/TRANS/WP.29/78/Rev.4, para. 2. —
www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29resolutions.html .15.2.2019 EN Official Journal of the European Union L 45/3
2. DEFINITIONS
For the purposes of this Regulation the following definitions shall apply:
2.1. ‘Vehicle type’ means a group of vehicles that do not differ in the following respects:
2.1.1. The equivalent inertia determined in relation to the reference mass as prescribed in Table A4a/3 of
Annex 4a to this Regulation; and
2.1.2. The engine and vehicle characteristics as defined in Annex 1 to this Regulation.
2.2. ‘Reference mass’ means the unladen mass of the vehicle increased by a uniform figure of 100 kg for test
according to Annexes 4a and 8 to this Regulation.
2.2.1. ‘Unladen mass’ means the mass of the vehicle in running order without the uniform mass of the driver of
75 kg, passengers or load, but with the fuel tank 90 per cent full and the usual set of tools and spare
wheel on board, where applicable.
2.2.2. ‘Running order mass’ means the mass described in paragraph 2.6 of Annex 1 to this Regulation and for
vehicles designed and constructed for the carriage of more than 9 persons (in addition to the driver), the
mass of a crew member (75 kg), if there is a crew seat amongst the nine or more seats.
2.3. ‘Maximum mass’ means the technically permissible maximum mass declared by the vehicle manufacturer
(this mass may be greater than the maximum mass authorised by the national administration).
2.4. ‘Gaseous pollutants’ means the exhaust gas emissions of carbon monoxide, oxides of nitrogen expressed in
nitrogen dioxide (NO ) equivalent and hydrocarbons assuming ratio of:
2
(a) C H for Liquefied Petroleum Gas (LPG);
1 2,525
(b) C H for Natural Gas (NG) and biomethane;
1 4
(c) C H O for petrol (E5);
1 1,89 0,016
(d) C H O for petrol (E10);
1 1,93 0,033
(e) C H O for diesel (B5);
1 1,86 0,005
(f) C H O for diesel (B7);
1 1,86 0,007
(g) C H O for ethanol (E85);
1 2,74 0,385
(h) C H O for ethanol (E75).
1 2,61 0,329
2.5. ‘Particulate pollutants’ means components of the exhaust gas which are removed from the diluted exhaust
gas at a maximum temperature of 325 K (52 °C) by means of the filters described in Appendix 4 to
Annex 4a to this Regulation.
2.5.1. ‘Particulate numbers’ means the total number of particulates of a diameter greater than 23 nm present in
the diluted exhaust gas after it has been conditioned to remove volatile material, as described in Appendix
5 to Annex 4a to this Regulation.
2.6. ‘Exhaust emissions’ means:
(a) For Positive Ignition (PI) engines, emissions of gaseous and particulate pollutants;
(b) For Compression-Ignition (CI) engines, emissions of gaseous pollutants, particulate pollutants and
particulate numbers.L 45/4 EN Official Journal of the European Union 15.2.2019
2.7. ‘Evaporative emissions’ means the hydrocarbon vapours lost from the fuel system of a motor vehicle other
than those from exhaust emissions.
2.7.1. ‘Tank breathing losses’ are hydrocarbon emissions caused by temperature changes in the fuel tank
(assuming a ratio of C H ).
1 2,33
2.7.2. ‘Hot soak losses’ are hydrocarbon emissions arising from the fuel system of a stationary vehicle after
a period of driving (assuming a ratio of C H ).
1 2,20
2.8. ‘Engine crankcase’ means the spaces in or external to an engine which are connected to the oil sump by
internal or external ducts through which gases and vapour can escape.
2.9. ‘Cold start device’ means a device that temporarily enriches the air/fuel mixture of the engine thus assisting
the engine to start.
2.10. ‘Starting aid’ means a device which assists engine start up without enrichment of the air/fuel mixture of the
engine, e.g. glow plug, injection timing change, etc.
2.11. ‘Engine capacity’ means:
2.11.1. For reciprocating piston engines, the nominal engine swept volume.
2.11.2. For rotary piston engines (Wankel), twice the nominal swept volume of a combustion chamber per piston.
2.12. ‘Pollution control devices’ means those components of a vehicle that control and/or limit exhaust and
evaporative emissions.
2.13. ‘On-Board Diagnostic (OBD)’ means an on-board diagnostic system for emission control, which has the
capability of identifying the likely area of malfunction by means of fault codes stored in computer
memory.
2.14. ‘In-service test’ means the test and evaluation of conformity conducted in accordance with paragraph 9.2.1
of this Regulation.
2.15. ‘Properly maintained and used’ means, for the purpose of a test vehicle, that such a vehicle satisfies the
criteria for acceptance of a selected vehicle laid down in paragraph 2 of Appendix 3 to this Regulation.
2.16. ‘Defeat device’ means any element of design which senses temperature, vehicle speed, engine rotational
speed, transmission gear, manifold vacuum or any other parameter for the purpose of activating,
modulating, delaying or deactivating the operation of any part of the emission control system, that reduces
the effectiveness of the emission control system under conditions which may reasonably be expected to be
encountered in normal vehicle operation and use. Such an element of design may not be considered
a defeat device if:
2.16.1. The need for the device is justified in terms of protecting the engine against damage or accident and for
safe operation of the vehicle; or
2.16.2. The device does not function beyond the requirements of engine starting; or
2.16.3. Conditions are substantially included in the Type I or Type VI test procedures.
2.17. ‘Family of vehicles’ means a group of vehicle types identified by a parent vehicle for the purpose of
Annex 12 to this Regulation.
2.18. ‘Biofuel’ means liquid or gaseous fuel for transport, produced from biomass.15.2.2019 EN Official Journal of the European Union L 45/5
2.19. ‘Approval of a vehicle’ means the approval of a vehicle type with regard to the limitation of the following
conditions (2):
2.19.1. Limitation of exhaust emissions by the vehicle, evaporative emissions, crankcase emissions, durability of
pollution control devices, cold start pollutant emissions and on-board diagnostics of vehicles fuelled with
unleaded petrol, or which can be fuelled with either unleaded petrol and LPG or NG/biomethane or
biofuels (Approval B);
2.19.2. Limitation of emissions of gaseous and particulate pollutants, durability of pollution control devices and
on-board diagnostics of vehicles fuelled with diesel fuel (Approval C) or which can be fuelled with either
diesel fuel and biofuel or biofuel;
2.19.3. Limitation of emissions of gaseous pollutants by the engine, crankcase emissions, durability of pollution
control devices, cold start emissions and on-board diagnostics of vehicles fuelled with LPG or
NG/biomethane (Approval D).
2.20. ‘Periodically regenerating system’ means an anti-pollution device (e.g. catalytic converter, particulate trap)
that requires a periodical regeneration process in less than 4 000 km of normal vehicle operation. During
cycles where regeneration occurs, emission standards can be exceeded. If a regeneration of an anti-
pollution device occurs at least once per Type I test and that has already regenerated at least once during
vehicle preparation cycle, it will be considered as a continuously regenerating system which does not
require a special test procedure. Annex 13 to this Regulation does not apply to continuously regenerating
systems.
At the request of the manufacturer, the test procedure specific to periodically regenerating systems will not
apply to a regenerative device if the manufacturer provides data to the Type Approval Authority that,
during cycles where regeneration occurs, emissions remain below the standards given in paragraph 5.3.1.4
applied for the concerned vehicle category after agreement of the Technical Service.
2.21. Hybrid Vehicles (HV)
2.21.1. General definition of Hybrid Vehicles (HV):
‘Hybrid Vehicle (HV)’ means a vehicle with at least two different energy converters and two different energy
storage systems (on vehicle) for the purpose of vehicle propulsion.
2.21.2. Definition of Hybrid Electric Vehicles (HEV):
‘Hybrid Electric Vehicle (HEV)’ means a vehicle, including vehicles which draw energy from a consumable
fuel only for the purpose of recharging the electrical energy/power storage device that for the purpose of
mechanical propulsion draws energy from both of the following on-vehicle sources of stored
energy/power:
(a) A consumable fuel;
(b) A battery, capacitor, flywheel/generator or other electrical energy/power storage device.
2.22. ‘Mono-fuel vehicle’ means a vehicle that is designed to run primarily on one type of fuel.
2.22.1. ‘Mono-fuel gas vehicle’ means a vehicle that is designed primarily for permanent running on LPG or
NG/biomethane or hydrogen, but may also have a petrol system for emergency purposes or starting only,
where the capacity of the petrol tank does not exceed 15 litres.
2.23. ‘Bi-fuel vehicle’ means a vehicle with two separate fuel storage systems that is designed to run on only one
fuel at a time. The simultaneous use of both fuels is limited in amount and duration.
2.23.1. ‘Bi-fuel gas vehicle’ means a bi-fuel vehicle that can run on petrol (petrol mode) and also on either LPG,
NG/biomethane, or hydrogen (gas mode).
(2) Approval A cancelled. The 05 series of amendments to this Regulation prohibit the use of leaded petrol.L 45/6 EN Official Journal of the European Union 15.2.2019
2.24. ‘Alternative fuel vehicle’ means a vehicle designed to be capable of running on at least one type of fuel that
is either gaseous at atmospheric temperature and pressure, or substantially non-mineral oil derived.
2.25. ‘Flex fuel vehicle’ means a vehicle with one fuel storage system that can run on different mixtures of two
or more fuels.
2.25.1. ‘Flex fuel ethanol vehicle’ means a flex fuel vehicle that can run on petrol or a mixture of petrol and
ethanol up to an 85 per cent ethanol blend (E85).
2.25.2. ‘Flex fuel biodiesel vehicle’ means a flex fuel vehicle that can run on mineral diesel or a mixture of mineral
diesel and biodiesel.
2.26. In the context of In Use Performance Ratio Monitoring (IUPR ), ‘cold start’ means an engine coolant
M
temperature (or equivalent temperature) at engine start of less than or equal to 35 °C and less than or
equal to 7 K higher than ambient temperature (if available) at engine start.
2.27. ‘Direct injection engine’ means an engine which can operate in a mode where the fuel is injected into the
intake air after the air has been drawn through the inlet valves.
2.28. ‘Electric power train’ means a system consisting of one or more electric energy storage devices, one or
more electric power conditioning devices and one or more electric machines that convert stored electric
energy to mechanical energy delivered at the wheels for propulsion of the vehicle.
2.29. ‘Pure electric vehicle’ means a vehicle powered by an electric power train only.
2.30. ‘Hydrogen fuel cell vehicle’ means a vehicle powered by a fuel cell that converts chemical energy from
hydrogen into electric energy, for propulsion of the vehicle.
2.31. ‘Net power’ means the power obtained on a test bench at the end of the crankshaft or its equivalent at the
corresponding engine or motor speed with the auxiliaries tested in accordance with Regulation No 85 and
determined under reference atmospheric conditions.
2.32. ‘Maximum net power’ means the maximum value of the net power measured at full engine load.
2.33. ‘Maximum 30 minutes power’ means the maximum net power of an electric drive train at Direct Current
(DC) voltage as set out in paragraph 5.3.2 of Regulation No 85.
2.34. ‘Cold start’ means an engine coolant temperature (or equivalent temperature) at engine start less than or
equal to 35 °C and less than or equal to 7 K higher than ambient temperature (if available) at engine start.
3. APPLICATION FOR APPROVAL
3.1. The application for approval of a vehicle type with regard to exhaust emissions, crankcase emissions,
evaporative emissions and durability of pollution control devices, as well as to its On-Board Diagnostic
(OBD) system shall be submitted by the vehicle manufacturer or by his authorized representative to the
Type Approval Authority.
3.1.1. In addition, the manufacturer shall submit the following information:
(a) In the case of vehicles equipped with positive ignition engines, a declaration by the manufacturer of
the minimum percentage of misfires out of a total number of firing events that would either result in
emissions exceeding the limits given in paragraph 3.3.2 of Annex 11 to this Regulation, if that
percentage of misfire had been present from the start of a Type I test as described in Annex 4a to this
Regulation, or that could lead to an exhaust catalyst, or catalysts, overheating prior to causing
irreversible damage;
(b) Detailed written information fully describing the functional operation characteristics of the OBD
system, including a listing of all relevant parts of the emission control system of the vehicle that are
monitored by the OBD system;15.2.2019 EN Official Journal of the European Union L 45/7
(c) A description of the malfunction indicator used by the OBD system to signal the presence of a fault to
a driver of the vehicle;
(d) A declaration by the manufacturer that the OBD system complies with the provisions of paragraph 7
of Appendix 1 to Annex 11 to this Regulation relating to in-use performance under all reasonably
foreseeable driving conditions;
(e) A plan describing the detailed technical criteria and justification for incrementing the numerator and
denominator of each monitor that shall fulfil the requirements of paragraphs 7.2 and 7.3 of
Appendix 1 to Annex 11 to this Regulation, as well as for disabling numerators, denominators and the
general denominator under the conditions outlined in paragraph 7.7 of Appendix 1 to Annex 11 to
this Regulation;
(f) A description of the provisions taken to prevent tampering with and modification of the emission
control computer;
(g) If applicable, the particulars of the vehicle family as referred to in Appendix 2 to Annex 11 to this
Regulation;
(h) Where appropriate, copies of other type approvals with the relevant data to enable extension of
approvals and establishment of deterioration factors.
3.1.2. For the tests described in paragraph 3 of Annex 11 to this Regulation, a vehicle representative of the
vehicle type or vehicle family fitted with the OBD system to be approved shall be submitted to the
Technical Service responsible for the type approval test. If the Technical Service determines that the
submitted vehicle does not fully represent the vehicle type or vehicle family described in Appendix 2 to
Annex 11 to this Regulation, an alternative and, if necessary, an additional vehicle shall be submitted for
test in accordance with paragraph 3 of Annex 11 to this Regulation.
3.2. A model of the information document relating to exhaust emissions, evaporative emissions, durability and
the On-Board Diagnostic (OBD) system is given in Annex 1 to this Regulation. The information mentioned
under item 3.2.12.2.7.6 of Annex 1 to this Regulation is to be included in Appendix 1 ‘OBD-Related
information’ to the type approval communication given in Annex 2 to this Regulation.
3.2.1. Where appropriate, copies of other type approvals with the relevant data to enable extensions of approvals
and establishment of deterioration factors shall be submitted.
3.3. For the tests described in paragraph 5 of this Regulation a vehicle representative of the vehicle type to be
approved shall be submitted to the Technical Service responsible for the approval tests.
3.3.1. The application referred to in paragraph 3.1 of this Regulation shall be drawn up in accordance with the
model of the information document set out in Annex 1 to this Regulation.
3.3.2. For the purposes of paragraph 3.1.1(d), the manufacturer shall use the model of a manufacturer's
certificate of compliance with the OBD in-use performance requirements set out in Appendix 2 to
Annex 2 to this Regulation.
3.3.3. For the purposes of paragraph 3.1.1(e), the Type Approval Authority that grants the approval shall make
the information referred to in that point available to the Type Approval Authorities upon request.
3.3.4. For the purposes of subparagraphs (d) and (e) of paragraph 3.1.1 of this Regulation, Type Approval
Authorities shall not approve a vehicle if the information submitted by the manufacturer is inappropriate
for fulfilling the requirements of paragraph 7 of Appendix 1 to Annex 11 to this Regulation. Paragraphs 7.2,
7.3 and 7.7 of Appendix 1 to Annex 11 to this Regulation shall apply under all reasonably foreseeable
driving conditions. For the assessment of the implementation of the requirements set out in the first and
second subparagraphs, the Type Approval Authority shall take into account the state of technology.
3.3.5. For the purposes of paragraph 3.1.1, subparagraph (f) of this Regulation, the provisions taken to prevent
tampering with and modification of the emission control computer shall include the facility for updating
using a manufacturer-approved programme or calibration.L 45/8 EN Official Journal of the European Union 15.2.2019
3.3.6. For the tests specified in Table A, the manufacturer shall submit to the Technical Service responsible for the
type approval tests a vehicle representative of the type to be approved.
3.3.7. The application for type approval of flex-fuel vehicles shall comply with the additional requirements laid
down in paragraphs 4.9.1 and 4.9.2 of this Regulation.
3.3.8. Changes to the make of a system, component or separate technical unit that occur after a type approval
shall not automatically invalidate a type approval, unless its original characteristics or technical parameters
are changed in such a way that the functionality of the engine or pollution control system is affected.
4. APPROVAL
4.1. If the vehicle type submitted for approval following this amendment meets the requirements of
paragraph 5 of this Regulation, approval of that vehicle type shall be granted.
4.2. An approval number shall be assigned to each type approved.
Its first two digits shall indicate the series of amendments according to which the approval was granted.
The same Contracting Party shall not assign the same number to another vehicle type.
4.3. Notice of approval or of extension or refusal of approval of a vehicle type pursuant to this Regulation shall
be communicated to the Contracting Parties to the Agreement which apply this Regulation by means of
a form conforming to the model in Annex 2 to this Regulation.
4.3.1. In the event of amendment to the present text, for example, if new limit values are prescribed, the
Contracting Parties to the Agreement shall be informed which vehicle types already approved comply with
the new provisions.
4.4. There shall be affixed, conspicuously and in a readily accessible place specified on the approval form, to
every vehicle conforming to a vehicle type approved under this Regulation, an international approval mark
consisting of:
4.4.1. A circle surrounding the letter ‘E’ followed by the distinguishing number of the country that has granted
approval (3).
4.4.2. The number of this Regulation, followed by the letter ‘R’, a dash and the approval number to the right of
the circle described in paragraph 4.4.1.
4.4.3. The approval mark shall contain an additional character after the type approval number, the purpose of
which is to distinguish vehicle category and class for which the approval has been granted. This letter
should be chosen according to the Table A3/1 of Annex 3 to this Regulation.
4.5. If the vehicle conforms to a vehicle type approved, under one or more other Regulations annexed to the
Agreement, in the country which has granted approval under this Regulation, the symbol prescribed in
paragraph 4.4.1 need not be repeated; in such a case, the Regulation, approval numbers and the additional
symbols of all the Regulations under which approval has been granted in the country which has granted
approval under this Regulation shall be placed in vertical columns to the right of the symbol prescribed in
paragraph 4.4.1 of this Regulation.
4.6. The approval mark shall be clearly legible and be indelible.
4.7. The approval mark shall be placed close to or on the vehicle data plate.
4.7.1. Annex 3 to this Regulation gives examples of arrangements of the approval mark.
4.8. Additional requirements for vehicles fuelled by LPG or NG/biomethane
4.8.1. The additional requirements for vehicles fuelled by LPG or NG/biomethane are provided in Annex 12 to
this Regulation.
(3) The distinguishing numbers of the Contracting Parties to the 1958 Agreement are reproduced in Annex 3 to the Consolid
ated Resolution on the Construction of Vehicles (R.E.3), document ECE/TRANS/WP.29/78/Rev.3 — Annex 3, www.unece.
org/trans/main/wp29/wp29wgs/wp29gen/wp29resolutions.html15.2.2019 EN Official Journal of the European Union L 45/9
4.9. Additional requirements for approval of flex fuel vehicles
4.9.1. For the type approval of a flex fuel ethanol or biodiesel vehicle, the vehicle manufacturer shall describe the
capability of the vehicle to adapt to any mixture of petrol and ethanol fuel (up to an 85 per cent ethanol
blend) or diesel and biodiesel that may occur across the market.
4.9.2. For flex fuel vehicles, the transition from one reference fuel to another between the tests shall take place
without manual adjustment of the engine settings.
4.10. Requirements for approval regarding the OBD system
4.10.1. The manufacturer shall ensure that all vehicles are equipped with an OBD system.
4.10.2. The OBD system shall be designed, constructed and installed on a vehicle so as to enable it to identify
types of deterioration or malfunction over the entire life of the vehicle.
4.10.3. The OBD system shall comply with the requirements of this Regulation during conditions of normal use.
4.10.4. When tested with a defective component in accordance with Appendix 1 to Annex 11 to this Regulation,
the OBD system malfunction indicator shall be activated. The OBD system malfunction indicator may also
activate during this test at levels of emissions below the OBD threshold limits specified in Annex 11 to this
Regulation.
4.10.5. The manufacturer shall ensure that the OBD system complies with the requirements for in-use
performance set out in paragraph 7 of Appendix 1 to Annex 11 to this Regulation under all reasonably
foreseeable driving conditions.
4.10.6. In-use performance related data to be stored and reported by a vehicle's OBD system according to the
provisions of paragraph 7.6 of Appendix 1 to Annex 11 to this Regulation shall be made readily available
by the manufacturer to national authorities and independent operators without any encryption.
5. SPECIFICATIONS AND TESTS
Small volume manufacturers
As an alternative to the requirements of this paragraph, vehicle manufacturers whose world-wide annual
production is less than 10 000 units may obtain approval on the basis of the corresponding technical
requirements specified in the table below.
Legislative Act Requirements
The California Code of Regulations, Title 13, paragraphs 1961(a) Type approval shall be granted under
and 1961(b)(1)(C)(1) applicable to 2001 and later model year ve the California Code of Regulations ap
hicles, 1968.1, 1968.2, 1968.5, 1976 and 1975, published by plicable to the most recent model year
Barclay's Publishing. of light duty vehicle.
The emissions tests for roadworthiness purposes set out in Annex 5 to this Regulation and the
requirements for access to vehicle OBD information set out in paragraph 5 of Annex 11 to this Regulation
shall still be required to obtain type approval with regard to emissions under this paragraph.
The Type Approval Authority shall inform the other Type Approval Authorities of Contracting Parties of
the circumstances of each type approval granted under this paragraph.
5.1. General
5.1.1. The components liable to affect the emission of pollutants shall be so designed, constructed and assembled
as to enable the vehicle, in normal use, despite the vibration to which they may be subjected, to comply
with the provisions of this Regulation.L 45/10 EN Official Journal of the European Union 15.2.2019
5.1.2. The technical measures taken by the manufacturer shall be such as to ensure that in conformity with the
provisions of this Regulation, exhaust gas and evaporative emissions are effectively limited throughout the
normal life of the vehicle and under normal conditions of use. This will include the security of those hoses
and their joints and connections, used within the emission control systems, which shall be so constructed
as to conform with the original design intent. For exhaust emissions, these provisions are deemed to be
met if the provisions of paragraph 5.3.1 of this Regulation and paragraph 8.2 of this Regulation are
complied with. For evaporative emissions, these conditions are deemed to be met if the provisions of
paragraph 5.3.4 of this Regulation and paragraph 8.4 of this Regulation are complied with.
5.1.2.1. The use of a defeat device is prohibited.
5.1.3. Inlet orifices of petrol tanks
5.1.3.1. Subject to paragraph 5.1.3.2 of this Regulation, the inlet orifice of the petrol or ethanol tank shall be so
designed as to prevent the tank from being filled from a fuel pump delivery nozzle which has an external
diameter of 23,6 mm or greater.
5.1.3.2. Paragraph 5.1.3.1 of this Regulation shall not apply to a vehicle in respect of which both of the following
conditions are satisfied, i.e.:
5.1.3.2.1. The vehicle is so designed and constructed that no device designed to control the emission of gaseous
pollutants shall be adversely affected by leaded petrol; and
5.1.3.2.2. The vehicle is conspicuously, legibly and indelibly marked with the symbol for unleaded petrol, specified in
ISO 2575:1982, in a position immediately visible to a person filling the petrol tank. Additional markings
are permitted.
5.1.4. Provision shall be made to prevent excess evaporative emissions and fuel spillage caused by a missing fuel
filler cap. This may be achieved by using one of the following:
5.1.4.1. An automatically opening and closing, non-removable fuel filler cap;
5.1.4.2. Design features which avoid excess evaporative emissions in the case of a missing fuel filler cap; or
5.1.4.3. Any other provision which has the same effect. Examples may include, but are not limited to, a tethered
filler cap, a chained filler cap or one utilising the same locking key for the filler cap as for the vehicle's
ignition. In this case, the key shall be removable from the filler cap only in the locked condition.
5.1.5. Provisions for electronic system security
5.1.5.1. Any vehicle with an emission control computer shall include features to prevent modification, except as
authorised by the manufacturer. The manufacturer shall authorise modifications if these modifications are
necessary for the diagnosis, servicing, inspection, retrofitting or repair of the vehicle. Any reprogrammable
computer codes or operating parameter shall be resistant to tampering and afford a level of protection at
least as good as the provisions in ISO DIS 15031-7, dated 15 March 2001 (SAE J2186 dated
October 1996). Any removable calibration memory chips shall be potted, encased in a sealed container, or
protected by electronic algorithms and shall not be changeable without the use of specialised tools and
procedures. Only features directly associated with emissions calibration or prevention of vehicle theft may
be so protected.
5.1.5.2. Computer-coded engine operating parameters shall not be changeable without the use of specialised tools
and procedures (e.g. soldered or potted computer components or sealed (or soldered) computer
enclosures).
5.1.5.3. In the case of mechanical fuel-injection pumps fitted to compression-ignition engines, manufacturers shall
take adequate steps to protect the maximum fuel delivery setting from tampering while a vehicle is in
service.
5.1.5.4. Manufacturers may apply to the Type Approval Authority for an exemption to one of these requirements
for those vehicles which are unlikely to require protection. The criteria that the Type Approval Authority
will evaluate in considering an exemption will include, but are not limited to, the current availability of
performance chips, the high-performance capability of the vehicle and the projected sales volume of the
vehicle.15.2.2019 EN Official Journal of the European Union L 45/11
5.1.5.5. Manufacturers using programmable computer code systems (e.g. Electrical Erasable Programmable Read-
Only Memory, EEPROM) shall deter unauthorised reprogramming. Manufacturers shall include enhanced
tamper protection strategies and write protect features requiring electronic access to an off-site computer
maintained by the manufacturer. Methods giving an adequate level of tamper protection will be approved
by the Type Approval Authority.
5.1.6. It shall be possible to inspect the vehicle for roadworthiness test in order to determine its performance in
relation to the data collected in accordance with paragraph 5.3.7. If this inspection requires a special
procedure, this shall be detailed in the service manual (or equivalent media). This special procedure shall
not require the use of special equipment other than that provided with the vehicle.
5.2. Test procedure
Table A illustrates the various possibilities for type approval of a vehicle.
5.2.1. Positive ignition engine-powered vehicles and hybrid electric vehicles equipped with a positive ignition
engine shall be subject to the following tests:
Type I (verifying the average exhaust emissions after a cold start);
Type II (carbon monoxide emission at idling speed);
Type III (emission of crankcase gases);
Type IV (evaporation emissions);
Type V (durability of anti-pollution devices);
Type VI (verifying the average low ambient temperature carbon monoxide and hydrocarbon exhaust
emissions after a cold start;
OBD test;
Engine power test.
5.2.2. Positive ignition engine-powered vehicle and hybrid electric vehicles equipped with positive ignition engine
fuelled with LPG or NG/biomethane (mono or bi-fuel) shall be subjected to the following tests (according
to Table A):
Type I (verifying the average exhaust emissions after a cold start);
Type II (carbon monoxide emissions at idling speed);
Type III (emission of crankcase gases);
Type IV (evaporative emissions), where applicable;
Type V (durability of anti-pollution devices);
Type VI (verifying the average low ambient temperature carbon monoxide and hydrocarbon exhaust
emissions after a cold start), where applicable,
OBD test;
Engine power test.L 45/12 EN Official Journal of the European Union 15.2.2019
5.2.3. Compression ignition engine-powered vehicles and hybrid electric vehicles equipped with a compression
ignition engine shall be subject to the following tests:
Type I (verifying the average exhaust emissions after a cold start);
Type V (durability of anti-pollution control devices);
OBD test.
Table A
Requirements
Application of test requirements for type approval and extensions
Vehicles with compres
Vehicles with positive ignition engines including hybrids sion ignition engines
including hybrids
Vehicle category
Flex-fuel
Mono fuel Bi-fuel(1) Flex fuel Mono fuel
(1)
Petrol Petrol Petrol Petrol Diesel
(E5/E10)(7) (E5/E10)(7) (E5/E10)(7) (E5/E10)(7) (B5/B7)(7)
Petrol NG/
Hydrogen Diesel
Reference fuel (E5/ LPG Bio-
(ICE)(5) NG/ (B5/B7)(7)
E10)(7) methane Hydrogen Ethanol
LPG Biome- Biodiesel
(ICE)(5) (E85)
thane
Gaseous pollutants Yes Yes Yes Yes(4) Yes Yes Yes Yes Yes (B5/B7 Yes
only)(2)(7)
(Type I test) (both (both (both (both
fuels) fuels) fuels)(4) fuels)
Particulate mass Yes(6) — — — Yes Yes Yes Yes Yes (B5/B7 Yes
and particulate only)(2)(7)
(petrol (petrol (petrol (both
number
only)(6) only)(6) only)(6) fuels)(6)
(Type I test)
Idle emissions Yes Yes Yes — Yes Yes Yes Yes — —
(Type II test) (both (both (petrol (both
fuels) fuels) only) fuels)
Crankcase Yes Yes Yes — Yes Yes Yes Yes — —
emissions
(petrol (petrol (petrol (petrol
(Type III test) only) only) only) only)
Evaporative Yes — — — Yes Yes Yes Yes — —
emissions
(petrol (petrol (petrol (petrol
(Type IV test) only) only) only) only)
Durability Yes Yes Yes Yes Yes Yes Yes Yes Yes (B5/B7 Yes
only)(2)(7)
(Type V test) (petrol (petrol (petrol (petrol
only) only) only) only)
Low temperature Yes — — — Yes Yes Yes Yes(3) — —
emissions
(petrol (petrol (petrol (both
(Type VI test) only) only) only) fuels)15.2.2019 EN Official Journal of the European Union L 45/13
Vehicles with compres
Vehicles with positive ignition engines including hybrids sion ignition engines
including hybrids
Vehicle category
Flex-fuel
Mono fuel Bi-fuel(1) Flex fuel Mono fuel
(1)
Petrol Petrol Petrol Petrol Diesel
(E5/E10)(7) (E5/E10)(7) (E5/E10)(7) (E5/E10)(7) (B5/B7)(7)
Petrol NG/
Hydrogen Diesel
Reference fuel (E5/ LPG Bio-
(ICE)(5) NG/ (B5/B7)(7)
E10)(7) methane Hydrogen Ethanol
LPG Biome- Biodiesel
(ICE)(5) (E85)
thane
In-service conform Yes Yes Yes Yes Yes Yes Yes Yes Yes (B5/B7 Yes
ity only)(2)(7)
(both (both (both (both
fuels) fuels) fuels) fuels)
On-board diagnos Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
tics
(1) When a bi-fuel vehicle is combined with a flex fuel vehicle, both test requirements are applicable.
(2) This provision is temporary, further requirements for biodiesel shall be proposed later on.
(3) The test will be performed on both fuels. The E75 test reference fuel specified in Annex 10 shall be used.
(4) Only NO emissions shall be determined when the vehicle is running on hydrogen.
x
(5) Reference fuel is ‘Hydrogen for internal combustion engines’ as specified in Annex 10a.
(6) Positive ignition particulate mass and number limits for vehicles with positive ignition engines including hybrids shall apply only to vehicles with
direct injection engines.
(7) Upon the choice of the manufacturer vehicles with positive and compression ignition engines may be tested with either E5 or E10 and either B5
or B7 fuels, respectively. However:
— not later than sixteen months after the dates set out in point 12.2.1, new type approvals shall only be performed with E10 and B7 fuels,
— not later than as from dates set out in point 12.2.4, all new vehicles shall be approved with E10 and B7 fuels.
5.3. Description of tests
5.3.1. Type I test (Verifying exhaust emissions after a cold start).
5.3.1.1. Figure 1 illustrates the routes for Type I test. This test shall be carried out on all vehicles referred to in
paragraph 1.
5.3.1.2. The vehicle is placed on a chassis dynamometer equipped with a means of load and inertia simulation.
5.3.1.2.1. A test lasting a total of 19 minutes and 40 seconds, made up of two parts, One and Two, is performed
without interruption. An unsampled period of not more than 20 seconds may, with the agreement of the
manufacturer, be introduced between the end of Part One and the beginning of Part Two in order to
facilitate adjustment of the test equipment.
5.3.1.2.1.1. Vehicles that are fuelled with LPG or NG/biomethane shall be tested in the Type I test for variation in the
composition of LPG or NG/biomethane, as set out in Annex 12 to this Regulation. Vehicles that can be
fuelled either with petrol or LPG or NG/biomethane shall be tested on both the fuels, tests on LPG or
NG/biomethane being performed for variation in the composition of LPG or NG/biomethane, as set out in
Annex 12 to this Regulation.
5.3.1.2.1.2. Notwithstanding the requirement of paragraph 5.3.1.2.1.1, vehicles that can be fuelled with either petrol or
a gaseous fuel, but where the petrol system is fitted for emergency purposes or starting only and which the
petrol tank cannot contain more than 15 litres of petrol will be regarded for the Type I test as vehicles that
can only run on a gaseous fuel.L 45/14 EN Official Journal of the European Union 15.2.2019
5.3.1.2.2. Part One of the test is made up of four elementary urban cycles. Each elementary urban cycle comprises
fifteen phases (idling, acceleration, steady speed, deceleration, etc.).
5.3.1.2.3. Part Two of the test is made up of one extra-urban cycle. The extra-urban cycle comprises 13 phases
(idling, acceleration, steady speed, deceleration, etc.).
5.3.1.2.4. During the test the exhaust gases are diluted and a proportional sample collected in one or more bags. The
exhaust gases of the vehicle tested are diluted, sampled and analysed, following the procedure described
below, and the total volume of the diluted exhaust is measured. Not only are the carbon monoxide,
hydrocarbon and nitrogen oxide emissions recorded, but also the particulate pollutant emissions from
vehicles equipped with compression-ignition engines.
5.3.1.3. The test is carried out using the procedure of Type I test as described in Annex 4a to this Regulation. The
method used to collect and analyse the gases is prescribed in Appendix 2 and Appendix 3 to Annex 4a to
this Regulation, and the method to sample and analyse the particulates shall be as prescribed in Appendix
4 and Appendix 5 to Annex 4a to this Regulation.
5.3.1.4. Subject to the requirements of paragraph 5.3.1.5 the test shall be repeated three times. The results are
multiplied by the appropriate deterioration factors obtained from Table 3 of paragraph 5.3.6 and, in the
case of periodically regenerating systems as defined in paragraph 2.20, shall also be multiplied by the
factors K obtained from Annex 13 to this Regulation. The resulting masses of gaseous emissions and the
i
mass of and number of particulates obtained shall be less than the limits shown in Table 1:Table 1
Emissions limits
Limit values
Mass of non- Combined mass of
Mass of carbon Mass of total hy Mass of oxides of Mass of particulate
methane hydrocar hydrocarbons and Number of particulates
Reference mass monoxide drocarbons nitrogen matter
bons oxides of nitrogen (PN)
(RM) (kg) (CO) (THC) (NO) (PM)
(NMHC) x (THC + NO)
x
L L L L L + L L L
1 2 3 4 2 4 5 6
(mg/km) (mg/km) (mg/km) (mg/km) (mg/km) (mg/km) (#/km)
Category Class PI CI PI CI PI CI PI CI PI CI PI(1) CI PI(1)(2) CI
M — All 1 000 500 100 — 68 — 60 80 — 170 4,5 4,5 6,0 × 1011 6,0 × 1011
N I RM ≤ 1 305 1 000 500 100 — 68 — 60 80 — 170 4,5 4,5 6,0 × 1011 6,0 × 1011
1
II 1 305 < RM ≤ 1 760 1 810 630 130 — 90 — 75 105 — 195 4,5 4,5 6,0 × 1011 6,0 × 1011
III 1 760 < RM 2 270 740 160 — 108 — 82 125 — 215 4,5 4,5 6,0 × 1011 6,0 × 1011
N — All 2 270 740 160 — 108 — 82 125 — 215 4,5 4,5 6,0 × 1011 6,0 × 1011
2
PI Positive Ignition
CI Compression Ignition
(1) Positive ignition particulate mass and number limits shall apply only to vehicles with direct injection engines.
(2) Until three years after the dates specified in paragraphs 12.2.1 and 12.2.2 of this Regulation for new type approvals and new vehicles respectively, a particulate number emission limit of 6,0 × 1012 #/km shall
apply to PI direct injection vehicles upon the choice of the manufacturer.
15.2.2019
EN
Official
Journal
of
the
European
Union
L
45/15L 45/16 EN Official Journal of the European Union 15.2.2019
5.3.1.4.1. Notwithstanding the requirements of paragraph 5.3.1.4, for each pollutant or combination of pollutants,
one of the three resulting masses obtained may exceed, by not more than 10 per cent, the limit prescribed,
provided the arithmetical mean of the three results is below the prescribed limit. Where the prescribed
limits are exceeded for more than one pollutant, it is immaterial whether this occurs in the same test or in
different tests.
5.3.1.4.2. When the tests are performed with gaseous fuels, the resulting mass of gaseous emissions shall be less than
the limits for petrol-engined vehicles in the Table 1.
5.3.1.5. The number of tests prescribed in paragraph 5.3.1.4 is reduced in the conditions hereinafter defined, where
V is the result of the first test and V the result of the second test for each pollutant or for the combined
1 2
emission of two pollutants subject to limitation.
5.3.1.5.1. Only one test is performed if the result obtained for each pollutant or for the combined emission of two
pollutants subject to limitation, is less than or equal to 0,70 L (i.e. V ≤ 0,70 L).
1
5.3.1.5.2. If the requirement of paragraph 5.3.1.5.1 is not satisfied, only two tests are performed if, for each
pollutant or for the combined emission of two pollutants subject to limitation, the following requirements
are met:
V ≤ 0,85 L and V + V ≤ 1,70 L and V ≤ L.
1 1 2 2
Figure 1
Flow chart for Type I type approval15.2.2019 EN Official Journal of the European Union L 45/17
5.3.2. Type II test (Carbon monoxide emission test at idling speed)
5.3.2.1. This test is carried out on all vehicles powered by positive ignition engines, as follows:
5.3.2.1.1. Vehicles that can be fuelled either with petrol or with LPG or NG/biomethane shall be tested in the Type II
test on both fuels.
5.3.2.1.2. Notwithstanding the requirement of paragraph 5.3.2.1.1, vehicles that can be fuelled with either petrol or
a gaseous fuel, but where the petrol system is fitted for emergency purposes or starting only and which the
petrol tank cannot contain more than 15 litres of petrol will be regarded for the Type II test as vehicles
that can only run on a gaseous fuel.
5.3.2.2. For the Type II test set out in Annex 5 to this Regulation, at normal engine idling speed, the maximum
permissible carbon monoxide content in the exhaust gases shall be that stated by the vehicle manufacturer.
However, the maximum carbon monoxide content shall not exceed 0,3 per cent vol.
At high idle speed, the carbon monoxide content by volume of the exhaust gases shall not exceed 0,2 per
cent, with the engine speed being at least 2 000 min– 1 and Lambda being 1 ± 0,03 or in accordance with
the specifications of the manufacturer.
5.3.3. Type III test (Verifying emissions of crankcase gases)
5.3.3.1. This test shall be carried out on all vehicles referred to in paragraph 1 except those having compression-
ignition engines.
5.3.3.1.1. Vehicles that can be fuelled either with petrol or with LPG or NG should be tested in the Type III test on
petrol only.
5.3.3.1.2. Notwithstanding the requirement of paragraph 5.3.3.1.1, vehicles that can be fuelled with either petrol or
a gaseous fuel, but where the petrol system is fitted for emergency purposes or starting only and which the
petrol tank cannot contain more than 15 litres of petrol will be regarded for the Type III test as vehicles
that can only run on a gaseous fuel.
5.3.3.2. When tested in accordance with Annex 6 to this Regulation, the engine's crankcase ventilation system shall
not permit the emission of any of the crankcase gases into the atmosphere.
5.3.4. Type IV test (Determination of evaporative emissions from vehicles with positive ignition engines)
5.3.4.1. This test shall be carried out on all vehicles referred to in paragraph 1 except those vehicles having
a compression-ignition engine, vehicles fuelled with LPG or NG/biomethane.
5.3.4.1.1. Vehicles that can be fuelled either with petrol or with LPG or with NG/biomethane should be tested in the
Type IV test on petrol only.
5.3.4.2. When tested in accordance with Annex 7 to this Regulation, evaporative emissions shall be less than 2
g/test.
5.3.5. Type VI test (Verifying the average exhaust emissions of carbon monoxide and hydrocarbons after a cold
start at low ambient temperature)
5.3.5.1. This test shall be carried out on all vehicles referred to in paragraph 1 except those having compression-
ignition engines.
However, for compression ignition vehicles when applying for type approval, manufacturers shall present
to the Type Approval Authority information showing that the NO after treatment device reaches
X
a sufficiently high temperature for efficient operation within 400 seconds after a cold start at – 7 °C as
described in the Type VI test.
In addition, the manufacturer shall provide the Type Approval Authority with information on the
operating strategy of the Exhaust Gas Recirculation (EGR) system, including information on its functioning
at low temperatures.L 45/18 EN Official Journal of the European Union 15.2.2019
This information shall also include a description of any effects on emissions.
The Type Approval Authority shall not grant type approval if the information provided is insufficient to
demonstrate that the after treatment device actually reaches a sufficiently high temperature for efficient
operation within the designated period of time.
5.3.5.1.1. The vehicle is placed on a chassis dynamometer equipped with a means of load an inertia simulation.
5.3.5.1.2. The test consists of the four elementary urban cycles of Part One of the Type I test. The Part One test is
described in paragraph 6.1.1 of Annex 4a to this Regulation, and illustrated in Figure A4a/1 of the same
annex. The low ambient temperature test lasting a total of 780 seconds shall be carried out without
interruption and start at engine cranking.
5.3.5.1.3. The low ambient temperature test shall be carried out at an ambient test temperature of 266 K (– 7 °C).
Before the test is carried out, the test vehicles shall be conditioned in a uniform manner to ensure that the
test results may be reproducible. The conditioning and other test procedures are carried out as described in
Annex 8 to this Regulation.
5.3.5.1.4. During the test, the exhaust gases are diluted and a proportional sample collected. The exhaust gases of the
vehicle tested are diluted, sampled and analysed, following the procedure described in Annex 8 to this
Regulation, and the total volume of the diluted exhaust is measured. The diluted exhaust gases are analysed
for carbon monoxide and total hydrocarbons.
5.3.5.2. Subject to the requirements in paragraphs 5.3.5.2.2 and 5.3.5.3 the test shall be performed three
times. The resulting mass of carbon monoxide and hydrocarbon emission shall be less than the limits
shown in Table 2.
Table 2
Emission limit for the carbon monoxide and hydrocarbon tailpipe emissions after
a cold start test
Test temperature 266 K (– 7 °C)
Mass of carbon monoxide
Mass of hydrocarbons (HC)
Vehicle category Class (CO)
L (g/km)
L (g/km) 2
1
M — 15 1,8
N I 15 1,8
1
II 24 2,7
III 30 3,2
N — 30 3,2
2
5.3.5.2.1. Notwithstanding the requirements of paragraph 5.3.5.2, for each pollutant, not more than one of the three
results obtained may exceed the limit prescribed by not more than 10 per cent, provided the arithmetical
mean value of the three results is below the prescribed limit. Where the prescribed limits are exceeded for
more than one pollutant, it is immaterial whether this occurs in the same test or in different tests.
5.3.5.2.2. The number of tests prescribed in paragraph 5.3.5.2 may, at the request of the manufacturer, be increased
to 10 if the arithmetical mean of the first three results is lower than 110 per cent of the limit. In this case,
the requirement after testing is only that the arithmetical mean of all 10 results shall be less than the limit
value.15.2.2019 EN Official Journal of the European Union L 45/19
5.3.5.3. The number of tests prescribed in paragraph 5.3.5.2 may be reduced according to paragraphs 5.3.5.3.1
and 5.3.5.3.2.
5.3.5.3.1. Only one test is performed if the result obtained for each pollutant of the first test is less than or equal
to 0,70 L.
5.3.5.3.2. If the requirement of paragraph 5.3.5.3.1 is not satisfied, only two tests are performed if for each pollutant
the result of the first test is less than or equal to 0,85 L and the sum of the first two results is less than or
equal to 1,70 L and the result of the second test is less than or equal to L.
(V ≤ 0,85 L and V + V ≤ 1,70 L and V ≤ L).
1 1 2 2
5.3.6. Type V test (Description of the endurance test for verifying the durability of pollution control devices)
5.3.6.1. This test shall be carried out on all vehicles referred to in paragraph 1 to which the test specified in
paragraph 5.3.1 applies. The test represents an ageing test of 160 000 km driven in accordance with the
programme described in Annex 9 to this Regulation on a test track, on the road or on a chassis
dynamometer.
5.3.6.1.1. Vehicles that can be fuelled either with petrol or with LPG or NG should be tested in the Type V test on
petrol only. In that case the deterioration factor found with unleaded petrol will also be taken for LPG or
NG.
5.3.6.2. Notwithstanding the requirement of paragraph 5.3.6.1, a manufacturer may choose to have the
deterioration factors from Table 3 used as an alternative to testing to paragraph 5.3.6.1.
Table 3
Deterioration factors
Assigned deterioration factors
Engine Category
HC + Particulate
CO THC NMHC NO Particulates
x NO Matter (PM)
x
Positive ignition 1,5 1,3 1,3 1,6 — 1,0 1,0
Compression-ignition
5.3.6.3. At the request of the manufacturer, the Technical Service may carry out the Type I test before the Type V
test has been completed using the deterioration factors in the table above. On completion of the Type V
test, the Technical Service may then amend the type approval results recorded in Annex 2 to this
Regulation by replacing the deterioration factors in the above table with those measured in the Type V test.
5.3.6.4. In the absence of assigned deterioration factors for compression ignition vehicles, manufacturers shall use
the whole vehicle or bench ageing durability test procedures to establish deterioration factors.
5.3.6.5. Deterioration factors are determined using either procedure in paragraph 5.3.6.1 or using the values in
Table 3 of paragraph 5.3.6.2. The factors are used to establish compliance with the requirements of
paragraphs 5.3.1 and 8.2.
5.3.7. Emission data required for roadworthiness testing
5.3.7.1. This requirement applies to all vehicles powered by a positive ignition engine for which type approval is
sought in accordance with this Regulation.L 45/20 EN Official Journal of the European Union 15.2.2019
5.3.7.2. When tested in accordance with Annex 5 to this Regulation (Type II test) at normal idling speed:
(a) The carbon monoxide content by volume of the exhaust gases emitted shall be recorded; and
(b) The engine speed during the test shall be recorded, including any tolerances.
5.3.7.3. When tested at ‘high idle’ speed (i.e. > 2 000 min– 1)
(a) The carbon monoxide content by volume of the exhaust gases emitted shall be recorded;
(b) The Lambda value shall be recorded; and
(c) The engine speed during the test shall be recorded, including any tolerances.
The Lambda value shall be calculated using the simplified Brettschneider equation as follows:
0 1
½CO �þ½CO�þ½O �þ@HCV� 3,5 − OCVA�ð½CO �þ½CO�Þ
2 2 ½CO� 2
�2 �4 3,5þ½CO2� 2
1þHCV − OCV �ð½CO �þ½CO�þK1�½HC�Þ
2
4 2
Where:
[ ] = concentration in per cent volume,
K1 = conversion factor for Non-Dispersive Infrared (NDIR) measurement to Flame Ionisation Detector
(FID) measurement (provided by manufacturer of measuring equipment),
H = Atomic ratio of hydrogen to carbon:
cv
(a) for petrol (E5) 1,89;
(b) for petrol (E10) 1,93;
(c) for LPG 2,53;
(d) for NG/biomethane 4,0;
(e) for ethanol (E85) 2,74;
(f) for ethanol (E75) 2,61.
O = Atomic ratio of oxygen to carbon:
cv
(a) for petrol (E5) 0,016;
(b) for petrol (E10) 0,033;
(c) for LPG 0,0;
(d) for NG/biomethane 0,0;
(e) for ethanol (E85) 0,39;
(f) for ethanol (E75) 0,329.
5.3.7.4. The engine oil temperature at the time of the test shall be measured and recorded.
5.3.7.5. The table of item 2.2 of the Addendum to Annex 2 to this Regulation shall be completed.
5.3.7.6. The manufacturer shall confirm the accuracy of the Lambda value recorded at the time of type approval in
paragraph 5.3.7.3 as being representative of typical production vehicles within 24 months of the date of
the granting of type approval by the Type Approval Authority. An assessment shall be made based on
surveys and studies of production vehicles.15.2.2019 EN Official Journal of the European Union L 45/21
5.3.8. On-board diagnostics OBD test
This test shall be carried out on all vehicles referred to in paragraph 1. The test procedure described in
paragraph 3 of Annex 11 to this Regulation shall be followed.
6. MODIFICATIONS OF THE VEHICLE TYPE
6.1. Every modification of the vehicle type shall be notified to the Type Approval Authority that approved the
vehicle type. The Type Approval Authoritymay then either:
6.1.1. Consider that the modifications made are unlikely to have an appreciable adverse effect and that in any
case the vehicle still complies with the requirement; or
6.1.2. Require a further test report from the Technical Service responsible for conducting the tests.
6.2. Confirmation or refusal of approval, specifying the alterations, shall be communicated by the procedure
specified in paragraph 4.3 to the Contracting Parties to the Agreement which apply this Regulation.
6.3. The Type Approval Authority issuing the extension of approval shall assign a series number to the
extension and inform thereof the other Contracting Parties applying this Regulation by means of
a communication form conforming to the model in Annex 2 to this Regulation.
7. EXTENSIONS TO TYPE APPROVALS
7.1. Extensions for tailpipe emissions (Type I, Type II and Type VI tests)
7.1.1. Vehicles with different reference masses
7.1.1.1. The type approval shall be extended only to vehicles with a reference mass requiring the use of the next
two higher equivalent inertia or any lower equivalent inertia.
7.1.1.2. For category N vehicles, the approval shall be extended to vehicles with a lower reference mass, only if the
emissions of the vehicle already approved are within the limits prescribed for the vehicle for which
extension of the approval is requested.
7.1.2. Vehicles with different overall transmission ratios
7.1.2.1. The type approval shall be extended to vehicles with different transmission ratios only under certain
conditions.
7.1.2.2. To determine whether type approval can be extended, for each of the transmission ratios used in the Type
I and Type VI tests, the proportion,
E = |(V – V )|/V
2 1 1
shall be determined where, at an engine speed of 1 000 min– 1, V is the speed of the type of vehicle
1
approved and V is the speed of the vehicle type for which extension of the approval is requested.
2
7.1.2.3. If, for each transmission ratio, E ≤ 8 per cent, the extension shall be granted without repeating the Type
I and Type VI tests.
7.1.2.4. If, for at least one transmission ratio, E > 8 per cent, and if, for each gear ratio, E ≤ 13 per cent, the Type
I and Type VI tests shall be repeated. The tests may be performed in a laboratory chosen by the
manufacturer subject to the approval of the Technical Service. The report of the tests shall be sent to the
Technical Service responsible for the type approval tests.
7.1.3. Vehicles with different reference masses and transmission ratios
The type approval shall be extended to vehicles with different reference masses and transmission ratios,
provided that all the conditions prescribed in paragraphs 7.1.1 and 7.1.2 are fulfilled.L 45/22 EN Official Journal of the European Union 15.2.2019
7.1.4. Vehicles with periodically regenerating systems
The type approval of a vehicle type equipped with a periodically regenerating system shall be extended to
other vehicles with periodically regenerating systems, whose parameters described below are identical, or
within the stated tolerances. The extension shall only relate to measurements specific to the defined
periodically regenerating system.
7.1.4.1. Identical parameters for extending approval are:
Engine:
(a) Combustion process.
Periodically regenerating system (i.e. catalyst, particulate trap):
(a) Construction (i.e. type of enclosure, type of precious metal, type of substrate, cell density);
(b) Type and working principle;
(c) Dosage and additive system;
(d) Volume ± 10 per cent;
(e) Location (temperature ± 50 °C at 120 km/h or 5 per cent difference of maximum tempera
ture/pressure).
7.1.4.2. Use of K factors for vehicles with different reference masses
i
The K factors developed by the procedures in paragraph 3 of Annex 13 to this Regulation for type
i
approval of a vehicle type with a periodically regenerating system, may be used by other vehicles which
meet the criteria referred to in paragraph 7.1.4.1 and have a reference mass within the next two higher
equivalent inertia classes or any lower equivalent inertia.
7.1.5. Application of extensions to other vehicles
When an extension has been granted in accordance with paragraphs 7.1.1 to 7.1.4.2, such a type approval
shall not be further extended to other vehicles.
7.2. Extensions for evaporative emissions (Type IV test)
7.2.1. The type approval shall be extended to vehicles equipped with a control system for evaporative emissions
which meet the following conditions:
7.2.1.1. The basic principle of fuel/air metering (e.g. single point injection) is the same;
7.2.1.2. The shape of the fuel tank and the material of the fuel tank and liquid fuel hoses are identical;
7.2.1.3. The worst-case vehicle with regard to the cross-section and approximate hose length shall be tested.
Whether non-identical vapour/liquid separators are acceptable is decided by the Technical Service
responsible for the type approval tests;
7.2.1.4. The fuel tank volume is within a range of ± 10 per cent;
7.2.1.5. The setting of the fuel tank relief valve is identical;
7.2.1.6. The method of storage of the fuel vapour is identical, i.e. trap form and volume, storage medium, air
cleaner (if used for evaporative emission control), etc.;15.2.2019 EN Official Journal of the European Union L 45/23
7.2.1.7. The method of purging the stored vapour is identical (e.g. air flow, start point or purge volume over the
preconditioning cycle); and
7.2.1.8. The method of sealing and venting the fuel metering system is identical.
7.2.2. The type approval shall be extended to vehicles with:
7.2.2.1. Different engine sizes;
7.2.2.2. Different engine powers;
7.2.2.3. Automatic and manual gearboxes;
7.2.2.4. Two and four wheel transmissions;
7.2.2.5. Different body styles; and
7.2.2.6. Different wheel and tyre sizes.
7.3. Extensions for durability of pollution control devices (Type V test)
7.3.1. The type approval shall be extended to different vehicle types, provided that the vehicle, engine or
pollution control system parameters specified below are identical or remain within the prescribed
tolerances:
7.3.1.1. Vehicle
Inertia category: the two inertia categories immediately above and any inertia category below.
Total road load at 80 km/h: + 5 per cent above and any value below.
7.3.1.2. Engine
(a) Engine cylinder capacity (± 15 per cent);
(b) Number and control of valves;
(c) Fuel system;
(d) Type of cooling system; and
(e) Combustion process.
7.3.1.3. Pollution control system parameters
(a) Catalytic converters and particulate filters:
(i) Number of catalytic converters, filters and elements;
(ii) Size of catalytic converters and filters (volume of monolith ± 10 per cent);
(iii) Type of catalytic activity (oxidizing, three-way, lean NOx trap, SCR, lean NOx catalyst or other);
(iv) Precious metal load (identical or higher);
(v) Precious metal type and ratio (± 15 per cent);
(vi) Substrate (structure and material);
(vii) Cell density; and
(viii) Temperature variation of no more than 50 K at the inlet of the catalytic converter or filter. This
temperature variation shall be checked under stabilized conditions at a speed of 120 km/h and
the load setting of the Type I test.L 45/24 EN Official Journal of the European Union 15.2.2019
(b) Air injection:
(i) With or without;
(ii) Type (pulsair, air pumps, other(s)).
(c) EGR:
(i) With or without;
(ii) Type (cooled or non-cooled, active or passive control, high pressure or low pressure).
7.3.1.4. The durability test may be carried out using a vehicle, which has a different body style, gear box (automatic
or manual) and size of the wheels or tyres from those of the vehicle type for which the type approval is
sought.
7.4. Extensions for on-board diagnostics
7.4.1. The type approval shall be extended to different vehicles with identical engine and emission control
systems as defined in Appendix 2 to Annex 11 to this Regulation. The type approval shall be extended
regardless of the following vehicle characteristics:
(a) Engine accessories;
(b) Tyres;
(c) Equivalent inertia;
(d) Cooling system;
(e) Overall gear ratio;
(f) Transmission type; and
(g) Type of bodywork.
8. CONFORMITY OF PRODUCTION (COP)
8.1. Every vehicle bearing an approval mark as prescribed under this Regulation shall conform, with regard to
components affecting the emission of gaseous and particulate pollutants by the engine, emissions from
the crankcase and evaporative emissions, to the vehicle type approved. The conformity of produc
tion procedures shall comply with those set out in the 1958 Agreement, Appendix 2 (E/ECE/324-
E/ECE/TRANS/505/Rev.2), with the following requirements:
8.1.1. Where applicable the tests of Types I, II, III, IV and the test for OBD shall be performed, as described in
Table A of this Regulation. The specific procedures for conformity of production are set out in the
paragraphs 8.2 to 8.6.
8.2. Checking the conformity of the vehicle for a Type I test
8.2.1. The Type I test shall be carried out on a vehicle of the same specification as described in the type approval
certificate. When a Type I test is to be carried out for a vehicle type approval that has one or several
extensions, the Type I tests shall be carried out either on the vehicle described in the initial information
package or on the vehicle described in the information package relating to the relevant extension.
8.2.2. After selection by the Type Approval Authority, the manufacturer shall not undertake any adjustment to
the vehicles selected.
8.2.2.1. Three vehicles shall be selected at random in the series and tested as described in paragraph 5.3.1 of this
Regulation. The deterioration factors shall be used in the same way. The limit values are set out in Table 1
of paragraph 5.3.1.4.15.2.2019 EN Official Journal of the European Union L 45/25
8.2.2.2. If the Type Approval Authority is satisfied with the production standard deviation given by the
manufacturer, the tests shall be carried out according to Appendix 1 to this Regulation. If the Type
Approval Authority is not satisfied with the production standard deviation given by the manufacturer, the
tests shall be carried out according to Appendix 2 to this Regulation.
8.2.2.3. The production of a series shall be deemed to conform or not to conform on the basis of a sampling test
of the vehicles once a pass decision is reached for all the pollutants or a fail decision is reached for one
pollutant, according to the test criteria applied in the appropriate appendix.
When a pass decision has been reached for one pollutant, that decision shall not be changed by any
additional tests carried out to reach a decision for the other pollutants.
If no pass decision is reached for all the pollutants and no fail decision is reached for one pollutant, a test
shall be carried out on another vehicle (see Figure 2).
Figure 2
Checking the conformity of the vehicleL 45/26 EN Official Journal of the European Union 15.2.2019
8.2.3. Notwithstanding the requirements of paragraph 5.3.1, the tests shall be carried out on vehicles coming
straight off the production line.
8.2.3.1. However, at the request of the manufacturer, the tests may be carried out on vehicles which have
completed:
(a) A maximum of 3 000 km for vehicles equipped with a positive ignition engine;
(b) A maximum of 15 000 km for vehicles equipped with a compression ignition engine.
The running-in procedure shall be conducted by the manufacturer, who shall undertake not to make any
adjustments to these vehicles.
8.2.3.2. If the manufacturer wishes to run in the vehicles, (‘x’ km, where x ≤ 3 000 km for vehicles equipped with
a positive ignition engine and x ≤ 15 000 km for vehicles equipped with a compression ignition engine),
the procedure shall be the following:
(a) The pollutant emissions (Type I) shall be measured at zero and at ‘x’ km on the first tested vehicle;
(b) The evolution coefficient of the emissions between zero and ‘x’ km shall be calculated for each of the
pollutant:
Emissions ‘x’ km/Emissions zero km
This may be less than 1; and
(c) The other vehicles shall not be run in, but their zero km emissions shall be multiplied by the evolution
coefficient.
In this case, the values to be taken shall be:
(i) The values at ‘x’ km for the first vehicle;
(ii) The values at zero km multiplied by the evolution coefficient for the other vehicles.
8.2.3.3. All these tests shall be conducted with commercial fuel. However, at the manufacturer's request, the
reference fuels described in Annex 10 or Annex 10a to this Regulation may be used.
8.3. Checking the conformity of the vehicle for a Type III test
8.3.1. If a Type III test is to be carried out, it shall be conducted on all vehicles selected for the Type I conformity
of production test set out in paragraph 8.2. The conditions laid down in Annex 6 to this Regulation shall
apply.
8.4. Checking the conformity of the vehicle for a Type IV test
8.4.1. If a Type IV test is to be carried out, it shall be conducted in accordance with Annex 7 to this Regulation.
8.5. Checking the conformity of the vehicle for On-board Diagnostics (OBD)
8.5.1. If a verification of the performance of the OBD system is to be carried out, it shall be conducted in
accordance with the following requirements:
8.5.1.1. When the Type Approval Authority determines that the quality of production seems unsatisfactory,
a vehicle shall be randomly taken from the series and subjected to the tests described in Appendix 1 to
Annex 11 to this Regulation.
8.5.1.2. The production shall be deemed to conform if this vehicle meets the requirements of the tests described in
Appendix 1 to Annex 11 to this Regulation.
8.5.1.3. If the vehicle taken from the series does not satisfy the requirements of paragraph 8.5.1.1, a further
random sample of four vehicles shall be taken from the series and subjected to the tests described in
Appendix 1 to Annex 11 to this Regulation. The tests may be carried out on vehicles which have been run
in for no more than 15 000 km.15.2.2019 EN Official Journal of the European Union L 45/27
8.5.1.4. The production shall be deemed to conform if at least three vehicles meet the requirements of the tests
described in Appendix 1 to Annex 11 to this Regulation.
8.6. Checking the conformity of a vehicle fuelled by LPG or NG/biomethane.
8.6.1. Tests for conformity of production may be performed with a commercial fuel of which the C3/C4 ratio lies
between those of the reference fuels in the case of LPG, or of which the Wobbe index lies between those of
the extreme reference fuels in the case of NG. In that case a fuel analysis shall be presented to the Type
Approval Authority.
9. IN-SERVICE CONFORMITY
9.1. Introduction
This paragraph sets out the tailpipe emissions and OBD (including IUPR ) in-service conformity
M
requirements for vehicles type approved to this Regulation.
9.2. Audit of in-service conformity
9.2.1. The audit of in-service conformity by the Type Approval Authority shall be conducted on the basis of any
relevant information that the manufacturer has, under the same procedures as those for the conformity of
production defined in the 1958 Agreement, Appendix 2 (E/ECE/324-E/ECE/TRANS/505/Rev.2).
Information from Type Approval Authority and Contracting Party surveillance testing may complement
the in-service monitoring reports supplied by the manufacturer.
9.2.2. Figures App4/1 and App4/2 of Appendix 4 to this Regulation illustrate the procedure for in-service
conformity checking. The process for in-service conformity is described in Appendix 5 to this Regulation.
9.2.3. As part of the information provided for the in-service conformity control, at the request of the Type
Approval Authority, the manufacturer shall report to the Type Approval Authority on warranty claims,
warranty repair works and OBD faults recorded at servicing, according to a format agreed at type
approval. The information shall detail the frequency and substance of faults for emissions related
components and systems. The reports shall be filed at least once a year for each vehicle model for the
duration of the period of up to 5 years of age or 100 000 km, whichever is the sooner.
9.2.4. Parameters defining the in-service family
The in-service family may be defined by basic design parameters which shall be common to vehicles within
the family. Accordingly, vehicle types may be considered as belonging to the same in-service family if they
have in common, or within the stated tolerances, the following parameters:
9.2.4.1. Combustion process (two stroke, four stroke, rotary);
9.2.4.2. Number of cylinders;
9.2.4.3. Configuration of the cylinder block (in-line, V, radial, horizontally opposed, other). The inclination or
orientation of the cylinders is not a criterion;
9.2.4.4. Method of engine fuelling (e.g. indirect or direct injection);
9.2.4.5. Type of cooling system (air, water, oil);
9.2.4.6. Method of aspiration (naturally aspirated, pressure charged);
9.2.4.7. Fuel for which the engine is designed (petrol, diesel, NG/biomethane, LPG, etc.). Bi-fuelled vehicles may be
grouped with dedicated fuel vehicles providing one of the fuels is common;
9.2.4.8. Type of catalytic converter (three-way catalyst, lean NO trap, SCR, lean NO catalyst or other(s));
X XL 45/28 EN Official Journal of the European Union 15.2.2019
9.2.4.9. Type of particulate trap (with or without);
9.2.4.10. Exhaust gas recirculation (with or without, cooled or non-cooled); and
9.2.4.11. Engine cylinder capacity of the largest engine within the family minus 30 per cent.
9.2.5. Information requirements
An audit of in-service conformity will be conducted by the Type Approval Authority on the basis of
information supplied by the manufacturer. Such information shall include in particular, the following:
9.2.5.1. The name and address of the manufacturer;
9.2.5.2. The name, address, telephone and fax numbers and e-mail address of the authorized representative within
the areas covered by the manufacturer's information;
9.2.5.3. The model name(s) of the vehicles included in the manufacturer's information;
9.2.5.4. Where appropriate, the list of vehicle types covered within the manufacturer's information, i.e. for tailpipe
emissions, the in-service family group in accordance with paragraph 9.2.4 and, for OBD and IUPR , the
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OBD family, in accordance with Appendix 2 to Annex 11 to this Regulation;
9.2.5.5. The vehicle identification number (VIN) codes applicable to these vehicle types within the family
(VIN prefix);
9.2.5.6. The numbers of the type approvals applicable to these vehicle types within the family, including, where
applicable, the numbers of all extensions and field fixes/recalls (re-works);
9.2.5.7. Details of extensions, field fixes/recalls to those type approvals for the vehicles covered within the manufac
turer's information (if requested by the Type Approval Authority);
9.2.5.8. The period of time over which the manufacturer's information was collected;
9.2.5.9. The vehicle build period covered within the manufacturer's information (e.g. vehicles manufactured during
the 2014 calendar year);
9.2.5.10. The manufacturer's in-service conformity checking procedure, including:
(a) Vehicle location method;
(b) Vehicle selection and rejection criteria;
(c) Test types and procedures used for the programme;
(d) The manufacturer's acceptance/rejection criteria for the in-service family group;
(e) Geographical area(s) within which the manufacturer has collected information; and
(f) Sample size and sampling plan used;
9.2.5.11. The results from the manufacturer's in-service conformity procedure, including:
(a) Identification of the vehicles included in the programme (whether tested or not). The identification
shall include the following:
(i) Model name;
(ii) Vehicle Identification Number (VIN);
(iii) Vehicle registration number;
(iv) Date of manufacture;
(v) Region of use (where known); and
(vi) Tyres fitted (tailpipe emissions only).15.2.2019 EN Official Journal of the European Union L 45/29
(b) The reason(s) for rejecting a vehicle from the sample;
(c) Service history for each vehicle in the sample (including any re-works);
(d) Repair history for each vehicle in the sample (where known); and
(e) Test data, including the following:
(i) Date of test/download;
(ii) Location of test/download; and
(iii) Distance indicated on vehicle odometer;
for tailpipe emissions only;
(iv) Test fuel specifications (e.g. test reference fuel or market fuel);
(v) Test conditions (temperature, humidity, dynamometer inertia weight);
(vi) Dynamometer settings (e.g. power setting); and
(vii) Test results (from at least three different vehicles per family);
and, for IUPR only:
M
(viii) All required data downloaded from the vehicle; and
(ix) For each monitor to be reported the in-use performance ratio IUPR .
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9.2.5.12. Records of indication from the OBD system
9.2.5.13. For IUPR sampling, the following:
M
(a) The average of in-use-performance ratios IUPR of all selected vehicles for each monitor according to
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paragraphs 7.1.4 and 7.1.5 of Appendix 1 to Annex 11 to this Regulation;
(b) The percentage of selected vehicles, which have an IUPR greater or equal to the minimum value
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applicable to the monitor according to paragraphs 7.1.4 and 7.1.5 of Appendix 1 to Annex 11 to this
Regulation.
9.3. Selection of vehicles for in-service conformity
9.3.1. The information gathered by the manufacturer shall be sufficiently comprehensive to ensure that in-service
performance can be assessed for normal conditions of use. The manufacturer's sampling shall be drawn
from at least two Contracting Parties with substantially different vehicle operating conditions. Factors such
as differences in fuels, ambient conditions, average road speeds, and urban/highway driving split shall be
taken into consideration in the selection of the Contracting Parties.
For OBD IUPR testing only, vehicles fulfilling the criteria of paragraph 2.2.1 of Appendix 3 to this
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Regulation shall be included in the test sample.
9.3.2. In selecting the Contracting Parties for sampling vehicles, the manufacturer may select vehicles from
a Contracting Party that is considered to be particularly representative. In this case, the manufacturer shall
demonstrate to the Type Approval Authority which granted the type approval that the selection is rep
resentative (e.g. by the market having the largest annual sales of a vehicle family within the applicable
Contracting Party). When a family requires more than one sample lot to be tested, as defined in
paragraph 9.3.5, the vehicles in the second and third sample lots shall reflect different vehicle operating
conditions from those selected for the first sample.
9.3.3. The emissions testing may be done at a test facility which is located in a different market or region from
where the vehicles have been selected.
9.3.4. The in-service tailpipe emissions conformity tests by the manufacturer shall be continuously carried out
reflecting the production cycle of applicable vehicles types within a given in-service vehicle family. The
maximum time period between commencing two in-service conformity checks shall not exceed
18 months. In the case of vehicle types covered by an extension to the type approval that did not require
an emissions test, this period may be extended up to 24 months.L 45/30 EN Official Journal of the European Union 15.2.2019
9.3.5. Sample size
9.3.5.1 When applying the statistical procedure defined in Appendix 4 to this Regulation (i.e. for tailpipe
emissions), the number of sample lots shall depend on the annual sales volume of an in-service family in
the territories of a regional organization (e.g. European Union), as defined in Table 4.
Table 4
Sample size
Registrations
— per calendar year (for tailpipe emission tests), Number of sample lots
— of vehicles of an OBD family with IUPR in the sampling period
Up to 100 000 1
100 001 to 200 000 2
Above 200 000 3
9.3.5.2. For IUPR, the number of sample lots to be taken is described in Table 4 and is based on the number of
vehicles of an OBD family that are approved with IUPR (subject to sampling).
For the first sampling period of an OBD family, all of the vehicle types in the family that are approved
with IUPR shall be considered to be subject to sampling. For subsequent sampling periods, only vehicle
types which have not been previously tested or are covered by emissions approvals that have been
extended since the previous sampling period shall be considered to be subject to sampling.
For families consisting of fewer than 5 000 registrations that are subject to sampling within the sampling
period, the minimum number of vehicles in a sample lot is six. For all other families, the minimum
number of vehicles in a sample lot to be sampled is fifteen.
Each sample lot shall adequately represent the sales pattern, i.e. at least the high volume vehicle types
(≥ 20 per cent of the family total) shall be represented.
Vehicles of small series productions with less than 1 000 vehicles per OBD family are exempted from
minimum IUPR requirements as well as the requirement to demonstrate these to the Type Approval
Authority.
9.4. On the basis of the audit referred to in paragraph 9.2, the Type Approval Authority shall adopt one of the
following decisions and actions:
(a) Decide that the in-service conformity of a vehicle type, vehicle in-service family or vehicle OBD family
is satisfactory and not take any further action;
(b) Decide that the data provided by the manufacturer is insufficient to reach a decision and request
additional information or test data from the manufacturer;
(c) Decide that based on data from the Type Approval Authority or Contracting Party surveillance testing
programmes, that information provided by the manufacturer is insufficient to reach a decision and
request additional information or test data from the manufacturer; or
(d) Decide that the in-service conformity of a vehicle type, that is part of an in-service family, or of an
OBD family, is unsatisfactory and proceed to have such vehicle type or OBD family tested in
accordance with Appendix 3 to this Regulation.
If, according to the IUPR audit, the test criteria of paragraph 6.1.2, subparagraph (a) or (b) of Appendix 3
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to this Regulation are met for the vehicles in a sample lot, the Type Approval Authority shall take the
further action described in subparagraph (d) above.15.2.2019 EN Official Journal of the European Union L 45/31
9.4.1. Where Type I tests are considered necessary to check the conformity of emission control devices with the
requirements for their performance while in service, such tests shall be carried out using a test procedure
meeting the statistical criteria defined in Appendix 4 to this Regulation.
9.4.2. The Type Approval Authority, in cooperation with the manufacturer, shall select a sample of vehicles with
sufficient mileage whose use under normal conditions can be reasonably assured. The manufacturer shall
be consulted on the choice of the vehicles in the sample and allowed to attend the confirmatory checks of
the vehicles.
9.4.3. The manufacturer shall be authorized, under the supervision of the Type Approval Authority, to carry out
checks, even of a destructive nature, on those vehicles with emission levels in excess of the limit values
with a view to establishing possible causes of deterioration which cannot be attributed to the manufacturer
(e.g. use of leaded petrol before the test date). Where the results of the checks confirm such causes, those
test results shall be excluded from the conformity check.
10. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
10.1. The approval granted in respect of a vehicle type pursuant to this Regulation, may be withdrawn if the
requirements laid down in paragraph 8.1 are not complied with or if the vehicle or vehicles taken fail to
pass the tests prescribed in paragraph 8.1.1.
10.2. If a Contracting Party which applies this Regulation withdraws an approval it has previously granted, it
shall forthwith so notify the other Contracting Parties applying this Regulation, by means of a communi
cation form conforming to the model in Annex 2 to this Regulation.
11. PRODUCTION DEFINITIVELY DISCONTINUED
If the holder of the approval completely ceases to manufacture a type of vehicle approved in accordance
with this Regulation, he shall so inform the Type Approval Authority which granted the approval. Upon
receiving the relevant communication, that authority shall inform thereof the other Contracting Parties to
the 1958 Agreement applying this Regulation by means of copies of the communication form conforming
to the model in Annex 2 to this Regulation.
12. TRANSITIONAL PROVISIONS
12.1. General provisions
12.1.1. As from the official date of entry into force of the 07 series of amendments, no Contracting Party applying
this Regulation shall refuse to grant approval under this Regulation as amended by the 07 series of
amendments.
12.1.2. As from the official date of entry into force of Supplement 5 to the 07 series of amendments to UN
Regulation No 83, and by way of derogation to the obligations of Contracting Parties during the
transitional period set out in paragraph 12.1.1 above, the Contracting Parties applying this Regulation and
also applying in their national/regional territory the provisions on the Worldwide Harmonized Light
Vehicle Test Procedure (WLTP) set out in UN Global Technical Regulation No 15 may no longer accept
type approvals granted on the basis of this Regulation as an alternative to compliance with their
national/regional legislation.
12.2. Type approvals
12.2.1. As from the official date of entry into force of the 07 series of amendments for vehicles of category M or
N (Class I) and 1 September 2015 for vehicles of category N (Classes II or III) and category N ,
1 1 2
Contracting Parties applying this Regulation shall grant an approval to new vehicle types only if they
comply with:
(a) The applicable limits for the Type I test in Table 1 specified in paragraph 5.3.1.4 of this Regulation;
and
(b) The Preliminary OBD threshold limits in Table A11/2 specified in paragraph 3.3.2.2 of Annex 11 to
this Regulation.L 45/32 EN Official Journal of the European Union 15.2.2019
12.2.2. As from 1 September 2015 for vehicles of category M or N (Class I), and from 1 September 2016 for
1
vehicles of category N (Classes II or III) and category N , Contracting Parties applying this Regulation shall
1 2
not be obliged to accept a type-approval which has not been granted in accordance with the 07 series of
amendments to this Regulation which does not comply with:
(a) The applicable limits for the Type I test in Table 1 specified in paragraph 5.3.1.4 of this Regulation;
and
(b) The Preliminary OBD threshold limits in Table A11/2 specified in paragraph 3.3.2.2 of Annex 11 to
this Regulation.
12.2.3. As from 1 September 2017 for vehicles of category M or N (Class I) and 1 September 2018 for vehicles
1
of category N (Classes II or III) and category N , Contracting Parties applying this Regulation as amended
1 2
by the 07 series of amendments shall grant an approval to new vehicle types only if they comply with:
(a) The applicable limits for the Type I test in Table 1 specified in paragraph 5.3.1.4; and
(b) The Final OBD threshold limits in Table A11/1 specified in paragraph 3.3.2.1 of Annex 11 to this
Regulation.
12.2.4. As from 1 September 2018 for vehicles of category M or N (Class I), and from 1 September 2019 for
1
vehicles of category N (Classes II or III) and category N , Contracting Parties applying this Regulation shall
1 2
not be obliged to accept a type-approval which has not been granted in accordance with the 07 series of
amendments to this Regulation which does not comply with:
(a) The applicable limits for the Type I test in Table 1 specified in paragraph 5.3.1.4 of this Regulation;
and
(b) The Final OBD threshold limits in Table A11/1 specified in paragraph 3.3.2.1 of Annex 11 to this
Regulation.
12.3. Special provisions
12.3.1. Contracting Parties applying this Regulation may continue to grant approvals to those vehicles which
comply with any previous series of amendments, or to any level of this Regulation, provided that the
vehicles are intended for sale or for export to countries that apply the relating requirements in their
national legislations.
13. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, AND OF
TYPE APPROVAL AUTHORITIES
The Contracting Parties to the 1958 Agreement which apply this Regulation shall communicate to the
United Nations Secretariat the names and addresses of the Technical Services responsible for conducting
approval tests and of the Type Approval Authorities which grant approval and to which forms certifying
approval or extension or refusal or withdrawal of approval, issued in other countries, are to be sent.15.2.2019 EN Official Journal of the European Union L 45/33
APPENDIX 1
Procedure for verifying the conformity of production requirements if the production standard
deviation given by the manufacturer is satisfactory
1. This appendix describes the procedure to be used to verify the production conformity for the Type I test when
the manufacturer's production standard deviation is satisfactory.
2. With a minimum sample size of 3, the sampling procedure is set so that the probability of a lot passing a test
with 40 per cent of the production defective is 0,95 (producer's risk = 5 per cent) while the probability of a lot
being accepted with 65 per cent of the production defective is 0,l (consumer's risk = 10 per cent).
3. For each of the pollutants given in Table 1 of paragraph 5.3.1.4, the following procedure is used (see Figure 2 in
paragraph 8.2).
Taking:
L = the natural logarithm of the limit value for the pollutant,
x = the natural logarithm of the measurement for the i-th vehicle of the sample,
i
s = an estimate of the production standard deviation (after taking the natural logarithm of the measurements),
n = the current sample number.
4. Compute for the sample the test statistic quantifying the sum of the standard deviations from the limit and
defined as:
Xn
1
ðL − xÞ
s i
i¼1
5. Then:
5.1. If the test statistic is greater than the pass decision number for the sample size given in Table App1/1, the
pollutant is passed;
5.2. If the test statistic is less than the fail decision number for the sample size given in Table App1/1, the pollutant is
failed; otherwise, an additional vehicle is tested and the calculation reapplied to the sample with a sample size one
unit greater.
Table App1/1
Pass decision number for the sample size
Cumulative number of tested vehicles
Pass decision threshold Fail decision threshold
(current sample size)
3 3,327 – 4,724
4 3,261 – 4,79
5 3,195 – 4,856
6 3,129 – 4,922
7 3,063 – 4,988
8 2,997 – 5,054
9 2,931 – 5,12
10 2,865 – 5,185
11 2,799 – 5,251
12 2,733 – 5,317L 45/34 EN Official Journal of the European Union 15.2.2019
Cumulative number of tested vehicles
Pass decision threshold Fail decision threshold
(current sample size)
13 2,667 – 5,383
14 2,601 – 5,449
15 2,535 – 5,515
16 2,469 – 5,581
17 2,403 – 5,647
18 2,337 – 5,713
19 2,271 – 5,779
20 2,205 – 5,845
21 2,139 – 5,911
22 2,073 – 5,977
23 2,007 – 6,043
24 1,941 – 6,109
25 1,875 – 6,175
26 1,809 – 6,241
27 1,743 – 6,307
28 1,677 – 6,373
29 1,611 – 6,439
30 1,545 – 6,505
31 1,479 – 6,571
32 – 2,112 – 2,11215.2.2019 EN Official Journal of the European Union L 45/35
APPENDIX 2
Procedure for verifying the conformity of production requirements if the production standard
deviation given by the manufacturer is either not satisfactory or not available
1. This appendix describes the procedure to be used to verify the production conformity requirements for the Type I
test when the manufacturer's evidence of production standard deviation is either not satisfactory or not available.
2. With a minimum sample size of 3, the sampling procedure is set so that the probability of a lot passing a test with
40 per cent of the production defective is 0,95 (producer's risk = 5 per cent) while the probability of a lot being
accepted with 65 per cent of the production defective is 0,l (consumer's risk = 10 per cent).
3. The measurements of the pollutants given in Table 1 of paragraph 5.3.1.4 of this Regulation are considered to be
log normally distributed and shall first be transformed by taking their natural logarithms. Let m and m denote the
0
minimum and maximum sample sizes respectively (m = 3 and m = 32) and let n denote the current sample
0
number.
4. If the natural logarithms of the measurements in the series are x , x …, x and L is the natural logarithm of the
1 2 i
limit value for the pollutant, then define:
d = x – L
1 1
Xn
1
d ¼ d
n n i
i¼1
and
Xn
V2 ¼1 ðd − d Þ2
n n i n
i¼1
5. Table App2/1 shows values of the pass (A ) and fail (B ) decision numbers against current sample number. The test
n n
statistic is the ratio d =V and shall be used to determine whether the series has passed or failed as follows:
n n
For m ≤ n ≤ m
o
d
(i) Pass the series if n �A
V n
n
d
(ii) Fail the series if n �B
V n
n
d
(iii) Take another measurement if A < n <B
n V n
n
6. Remarks
The following recursive formulae are useful for computing successive values of the test statistic:
� �
1 1
d ¼ 1 − d þ d
n n n − 1 n n
� � � �
2
1 d − d
V2 ¼ 1 − V2 þ n n
n n n − 1 n − 1
(n = 2, 3, … ; d¼d ; V = 0)
1 1
Table App2/1
Minimum sample size = 3
Sample size Pass decision threshold Fail decision threshold
(n) (A) (B)
n n
3 – 0,80381 16,64743
4 – 0,76339 7,68627
5 – 0,72982 4,67136L 45/36 EN Official Journal of the European Union 15.2.2019
Sample size Pass decision threshold Fail decision threshold
(n) (A) (B)
n n
6 – 0,69962 3,25573
7 – 0,67129 2,45431
8 – 0,64406 1,94369
9 – 0,61750 1,59105
10 – 0,59135 1,33295
11 – 0,56542 1,13566
12 – 0,53960 0,97970
13 – 0,51379 0,85307
14 – 0,48791 0,74801
15 – 0,46191 0,65928
16 – 0,43573 0,58321
17 – 0,40933 0,51718
18 – 0,38266 0,45922
19 – 0,35570 0,40788
20 – 0,32840 0,36203
21 – 0,30072 0,32078
22 – 0,27263 0,28343
23 – 0,24410 0,24943
24 – 0,21509 0,21831
25 – 0,18557 0,18970
26 – 0,15550 0,16328
27 – 0,12483 0,13880
28 – 0,09354 0,11603
29 – 0,06159 0,09480
30 – 0,02892 0,07493
31 0,00449 0,05629
32 0,03876 0,0387615.2.2019 EN Official Journal of the European Union L 45/37
APPENDIX 3
IN-SERVICE CONFORMITY CHECK
1. INTRODUCTION
This appendix sets out the criteria referred to in paragraphs 9.3 and 9.4 of this Regulation regarding the
selection of vehicles for testing and the procedures for the in-service conformity control.
2. SELECTION CRITERIA
The criteria for acceptance of a selected vehicle are defined for tailpipe emissions in paragraphs 2.1 to 2.8 of
this appendix and for IUPR in paragraphs 2.1 to 2.5 of this appendix. Information is collected by vehicle
M
examination and an interview with the owner/driver.
2.1. The vehicle shall belong to a vehicle type that is type approved under this Regulation and covered by
a certificate of conformity in accordance with the 1958 Agreement. It shall be registered and used in a country
of the Contracting Parties.
2.2. The vehicle shall have been in service for at least 15 000 km or 6 months, whichever is the later, and for no
more than 100 000 km or 5 years, whichever is the sooner.
2.2.1. For checking IUPR , the test sample shall include only vehicles that:
M
(a) Have collected sufficient vehicle operation data for the monitor to be tested.
For monitors required to meet the in-use monitor performance ratio and to track and report ratio data
pursuant to paragraph 7.6.1 of Appendix 1 to Annex 11 to this Regulation sufficient vehicle operation data
shall mean the denominator meets the criteria set forth below. The denominator, as defined in
paragraphs 7.3 and 7.5 of Appendix 1 to Annex 11 to this Regulation, for the monitor to be tested shall
have a value equal to or greater than one of the following values:
(i) 75 for evaporative system monitors, secondary air system monitors, and monitors utilising
a denominator incremented in accordance with paragraph 7.3.2 subparagraphs (a), (b) or (c) of
Appendix 1 to Annex 11 to this Regulation (e.g. cold start monitors, air conditioning system monitors,
etc.); or
(ii) 25 for particulate filter monitors and oxidation catalyst monitors utilising a denominator incremented
in accordance with paragraph 7.3.2 subparagraph (d) of Appendix 1 to Annex 11 to this Regulation; or
(iii) 150 for catalyst, oxygen sensor, EG R, VVT, and all other component monitors;
(b) Have not been tampered with or equipped with add-on or modified parts that would cause the OBD system
not to comply with the requirements of Annex 11 to this Regulation.
2.3. There shall be a maintenance record to show that the vehicle has been properly maintained, e.g. has been
serviced in accordance with the manufacturer's recommendations.
2.4. The vehicle shall exhibit no indications of abuse (e.g. racing, overloading, misfuelling, or other misuse), or other
factors (e.g. tampering) that could affect emission performance. The fault code and mileage information stored
in the computer is taken into account. A vehicle shall not be selected for testing if the information stored in the
computer shows that the vehicle has operated after a fault code was stored and a relatively prompt repair was
not carried out.
2.5. There shall have been no unauthorised major repair to the engine or major repair of the vehicle.
2.6. The lead content and sulphur content of a fuel sample from the vehicle tank shall meet applicable standards
and there shall be no evidence of misfuelling. Checks may be done in the exhaust, etc.
2.7. There shall be no indication of any problem that might jeopardise the safety of laboratory personnel.
2.8. All anti-pollution system components on the vehicle shall be in conformity with the applicable type approval.L 45/38 EN Official Journal of the European Union 15.2.2019
3. DIAGNOSIS AND MAINTENANCE
Diagnosis and any normal maintenance necessary shall be performed on vehicles accepted for testing, prior to
measuring exhaust emissions, in accordance with the procedure laid down in paragraphs 3.1 to 3.8 of this
appendix.
3.1. The following checks shall be carried out: checks on air filter, all drive belts, all fluid levels, radiator cap, all
vacuum hoses and electrical wiring related to the anti-pollution system for integrity; checks on ignition, fuel
metering and anti-pollution device components for maladjustments and/or tampering. All discrepancies shall be
recorded.
3.2. The OBD system shall be checked for proper functioning. Any malfunction indications in the OBD memory
shall be recorded and the requisite repairs shall be carried out. If the OBD malfunction indicator registers
a malfunction during a preconditioning cycle, the fault may be identified and repaired. The test may be re-run
and the results of that repaired vehicle used.
3.3. The ignition system shall be checked and defective components replaced, for example spark plugs, cables, etc.
3.4. The compression shall be checked. If the result is unsatisfactory the vehicle is rejected.
3.5. The engine parameters shall be checked to the manufacturer's specifications and adjusted if necessary.
3.6. If the vehicle is within 800 km of a scheduled maintenance service, that service shall be performed according to
the manufacturer's instructions. Regardless of odometer reading, the oil and air filter may be changed at the
request of the manufacturer.
3.7. Upon acceptance of the vehicle, the fuel shall be replaced with appropriate emission test reference fuel, unless
the manufacturer accepts the use of market fuel.
3.8. In the case of vehicles equipped with periodically regenerating systems as defined in paragraph 2.20 of this
Regulation, it shall be established that the vehicle is not approaching a regeneration period. (The manufacturer
shall be given the opportunity to confirm this.)
3.8.1. If this is the case, the vehicle shall be driven until the end of the regeneration. If regeneration occurs during
emissions measurement, then a further test shall be carried out to ensure that regeneration has been completed.
A complete new test shall then be performed, and the first and second test results not taken into account.
3.8.2. As an alternative to paragraph 3.8.1 above, if the vehicle is approaching a regeneration the manufacturer may
request that a specific conditioning cycle is used to ensure that regeneration (e.g. this may involve high speed,
high load driving).
The manufacturer may request that testing may be carried out immediately after regeneration or after the
conditioning cycle specified by the manufacturer and normal test preconditioning.
4. IN-SERVICE TESTING
4.1. When a check on vehicles is deemed necessary, emission tests in accordance with Annex 4a to this Regulation
are performed on pre-conditioned vehicles selected in accordance with the requirements of paragraphs 2 and 3
of this appendix. Pre-conditioning cycles additional to those specified in paragraph 6.3 of Annex 4a to this
Regulation will only be allowed if they are representative of normal driving.
4.2. Vehicles equipped with an OBD system may be checked for proper in-service functionality of the malfunction
indication, etc., in relation to levels of emissions (e.g. the malfunction indication limits defined in Annex 11 to
this Regulation) for the type-approved specifications.
4.3. The OBD system may be checked, for example, for levels of emissions above the applicable limit values with no
malfunction indication, systematic erroneous activation of the malfunction indication and identified faulty or
deteriorated components in the OBD system.15.2.2019 EN Official Journal of the European Union L 45/39
4.4. If a component or system operates in a manner not covered by the particulars in the type approval certificate
and/or information package for such vehicle types and such deviation has not been authorised under the
1958 Agreement, with no malfunction indication by the OBD, the component or system shall not be replaced
prior to emission testing, unless it is determined that the component or system has been tampered with or
abused in such a manner that the OBD does not detect the resulting malfunction.
5. EVALUATION OF EMISSION TEST RESULTS
5.1. The test results are submitted to the evaluation procedure in accordance with Appendix 4 to this Regulation.
5.2. Test results shall not be multiplied by deterioration factors.
5.3. In the case of periodically regenerating systems as defined in paragraph 2.20 of this Regulation, the results shall
be multiplied by the factors K obtained at the time when type approval was granted.
i
6. PLAN OF REMEDIAL MEASURES
6.1. The Type Approval Authority shall request the manufacturer to submit a plan of remedial measures to remedy
the non-compliance when:
6.1.1. For tailpipe emissions more than one vehicle is found to be an outlying emitter that meets either of the
following conditions:
(a) The conditions of paragraph 3.2.2 of Appendix 4 to this Regulation and where both the Type Approval
Authority and the manufacturer agree that the excess emission is due to the same cause; or
(b) The conditions of paragraph 3.2.3 of Appendix 4 to this Regulation where the Type Approval Authority
has determined that the excess emission is due to the same cause.
6.1.2. For IUPR of a particular monitor M the following statistical conditions are met in a test sample, the size of
M
which is determined according to paragraph 9.3.5 of this Regulation:
(a) For vehicles certified to a ratio of 0,1 in accordance with paragraph 7.1.5 of Appendix 1 to Annex 11 to
this Regulation, the data collected from the vehicles indicate for at least one monitor M in the test sample
either that the test sample average in-use-performance ratio is less than 0,1 or that 66 per cent or more of
the vehicles in the test sample have an in-use monitor performance ratio of less than 0,1.
(b) For vehicles certified to the full ratios in accordance with paragraph 7.1.4 of Appendix 1 to Annex 11 to
this Regulation the data collected from the vehicles indicate for at least one monitor M in the test sample
either that the test sample average in-use performance ratio in the test sample is less than the value
Test (M) or that 66 per cent or more of the vehicles in the test sample have an in-use performance ratio
min
of less than Test (M).
min
The value of Test (M) shall be:
min
(i) 0,230 if the monitor M is required to have an in-use ratio of 0,26;
(ii) 0,460 if the monitor M is required to have an in-use ratio of 0,52;
(iii) 0,297 if the monitor M is required to have an in-use ratio of 0,336;
according to paragraph 7.1.4 of Appendix 1 to Annex 11 to this Regulation.
6.2. The plan of remedial measures shall be filed with the Type Approval Authority not later than 60 working days
from the date of the notification referred to in paragraph 6.1 above. The Type Approval Authority shall within
30 working days declare its approval or disapproval of the plan of remedial measures. However, where the
manufacturer can demonstrate, to the satisfaction of the competent Type Approval Authority, that further time
is required to investigate the non-compliance in order to submit a plan of remedial measures, an extension is
granted.
6.3. The remedial measures shall apply to all vehicles likely to be affected by the same defect. The need to amend
the type approval documents shall be assessed.
6.4. The manufacturer shall provide a copy of all communications related to the plan of remedial measures, and
shall also maintain a record of the recall campaign, and supply regular status reports to the Type Approval
Authority.L 45/40 EN Official Journal of the European Union 15.2.2019
6.5. The plan of remedial measures shall include the requirements specified in paragraphs 6.5.1 to 6.5.11 below.
The manufacturer shall assign a unique identifying name or number to the plan of remedial measures.
6.5.1. A description of each vehicle type included in the plan of remedial measures;
6.5.2. A description of the specific modifications, alterations, repairs, corrections, adjustments, or other changes to be
made to bring the vehicles into conformity including a brief summary of the data and technical studies which
support the manufacturer's decision as to the particular measures to be taken to correct the non-conformity;
6.5.3. A description of the method by which the manufacturer informs the vehicle owners;
6.5.4. A description of the proper maintenance or use, if any, which the manufacturer stipulates as a condition of
eligibility for repair under the plan of remedial measures, and an explanation of the manufacturer's reasons for
imposing any such condition. No maintenance or use conditions may be imposed unless it is demonstrably
related to the non-conformity and the remedial measures;
6.5.5. A description of the procedure to be followed by vehicle owners to obtain correction of the non-conformity.
This shall include a date after which the remedial measures may be taken, the estimated time for the workshop
to perform the repairs and where they can be done. The repair shall be done expediently, within a reasonable
time after delivery of the vehicle;
6.5.6. A copy of the information transmitted to the vehicle owner;
6.5.7. A brief description of the system which the manufacturer uses to assure an adequate supply of component or
systems for fulfilling the remedial action. It shall be indicated when there will be an adequate supply of
components or systems to initiate the campaign;
6.5.8. A copy of all instructions to be sent to those persons who are to perform the repair;
6.5.9. A description of the impact of the proposed remedial measures on the emissions, fuel consumption,
derivability, and safety of each vehicle type, covered by the plan of remedial measures with data, technical
studies, etc. which support these conclusions;
6.5.10. Any other information, reports or data the Type Approval Authority may reasonably determine is necessary to
evaluate the plan of remedial measures.
6.5.11. Where the plan of remedial measures includes a recall, a description of the method for recording the repair
shall be submitted to the Type Approval Authority. If a label is used, an example of it shall be submitted.
6.6. The manufacturer may be required to conduct reasonably designed and necessary tests on components and
vehicles incorporating a proposed change, repair, or modification to demonstrate the effectiveness of the
change, repair, or modification.
6.7. The manufacturer is responsible for keeping a record of every vehicle recalled and repaired and the workshop
which performed the repair. The Type Approval Authority shall have access to the record on request for
a period of 5 years from the implementation of the plan of remedial measures.
6.8. The repair and/or modification or addition of new equipment shall be recorded in a certificate supplied by the
manufacturer to the vehicle owner.15.2.2019 EN Official Journal of the European Union L 45/41
APPENDIX 4
STATISTICAL PROCEDURE FOR TAILPIPE EMISSIONS IN-SERVICE CONFORMITY TESTING
1. This appendix describes the procedure to be used to verify the in-service conformity requirements for the
Type I test.
2. Two different procedures are to be followed:
(a) One dealing with vehicles identified in the sample, due to an emission related defect, causing outliers in
the results (paragraph 3 of this appendix);
(b) The other deals with the total sample (paragraph 4 of this appendix).
3. Procedure to be followed with outlying emitters in the sample
3.1. With a minimum sample size of three and a maximum sample size as determined by the procedure of
paragraph 4 of this appendix, a vehicle is taken at random from the sample and the emissions of the
regulated pollutants are measured to determine if it is an outlying emitter.
3.2. A vehicle is said to be an outlying emitter when the conditions given in paragraph 3.2.1 below are met.
3.2.1. In the case of a vehicle that has been type-approved according to the limit values given in Table 1 of
paragraph 5.3.1.4 of this Regulation, an outlying emitter is a vehicle where the applicable limit value for any
regulated pollutant is exceeded by a factor of 1,5.
3.2.2. In the specific case of a vehicle with a measured emission for any regulated pollutant within the ‘intermediate
zone’ (1).
3.2.2.1. If the vehicle meets the conditions of this paragraph, the cause of the excess emission shall be determined
and another vehicle is then taken at random from the sample.
3.2.2.2. Where more than one vehicle meets the condition of this paragraph, the Type Approval Authority and the
manufacturer shall determine if the excess emission from both vehicles is due to the same cause or not.
3.2.2.2.1. If the Type Approval Authority and the manufacturer both agree that the excess emission is due to the same
cause, the sample is regarded as having failed and the plan of remedial measures outlined in paragraph 6 of
Appendix 3 to this Regulation applies.
3.2.2.2.2. If the Type Approval Authority and the manufacturer cannot agree on either the cause of the excess emission
from an individual vehicle or whether the causes for more than one vehicle are the same, another vehicle is
taken at random from the sample, unless the maximum sample size has already been reached.
3.2.2.3. When only one vehicle meeting the conditions of this paragraph has been found, or when more than one
vehicle has been found and the Type Approval Authority and the manufacturer agree it is due to different
causes, another vehicle is taken at random from the sample, unless the maximum sample size has already
been reached.
3.2.2.4. If the maximum sample size is reached and not more than one vehicle meeting the requirements of this
paragraph has been found where the excess emission is due to the same cause, the sample is regarded as
having passed with regard to the requirements of paragraph 3 of this appendix.
3.2.2.5. If, at any time, the initial sample has been exhausted, another vehicle is added to the initial sample and that
vehicle is taken.
3.2.2.6. Whenever another vehicle is taken from the sample, the statistical procedure of paragraph 4 of this appendix
is applied to the increased sample.
(1) For any vehicle, the ‘intermediate zone’ is determined as follows: The vehicle shall meet the conditions given in paragraph 3.2.1 above
and, in addition, the measured value for the same regulated pollutant shall be below a level that is determined from the product of the
limit value for the same regulated pollutant given in Table 1 of paragraph 5.3.1.4 of this Regulation multiplied by a factor of 2,5.L 45/42 EN Official Journal of the European Union 15.2.2019
3.2.3. In the specific case of a vehicle with a measured emission for any regulated pollutant within the ‘failure
zone’ (2).
3.2.3.1. If the vehicle meets the conditions of this paragraph, the Type Approval Authority shall determine the cause
of the excess emission and another vehicle is then taken at random from the sample.
3.2.3.2. Where more than one vehicle meets the condition of this paragraph, and the Type Approval Authority
determines that the excess emission is due to the same cause, the manufacturer shall be informed that the
sample is regarded as having failed, together with the reasons for that decision, and the plan of remedial
measures outlined in paragraph 6 of Appendix 3 to this Regulation applies.
3.2.3.3. When only one vehicle meeting the conditions of this paragraph has been found, or when more than one
vehicle has been found and the Type Approval Authority has determined that it is due to different causes,
another vehicle is taken at random from the sample, unless the maximum sample size has already been
reached.
3.2.3.4. If the maximum sample size is reached and not more than one vehicle meeting the requirements of this
paragraph has been found where the excess emission is due to the same cause, the sample is regarded as
having passed with regard to the requirements of paragraph 3 of this appendix.
3.2.3.5. If, at any time, the initial sample has been exhausted, another vehicle is added to the initial sample and that
vehicle is taken.
3.2.3.6. Whenever another vehicle is taken from the sample, the statistical procedure of paragraph 4 of this appendix
is applied to the increased sample.
3.2.4. Whenever a vehicle is not found to be an outlying emitter, another vehicle is taken at random from the
sample.
3.3. When an outlying emitter is found, the cause of the excess emission shall be determined.
3.4. When more than one vehicle is found to be an outlying emitter, due to the same cause, the sample is
regarded as having failed.
3.5. When only one outlying emitter has been found, or when more than one outlying emitter is found, but due
to different causes, the sample is increased by one vehicle, unless the maximum sample size has already been
reached.
3.5.1. When in the increased sample more than one vehicle is found to be an outlying emitter, due to the same
cause, the sample is regarded as having failed.
3.5.2. When in the maximum sample size not more than one outlying emitter is found, where the excess emission
is due to the same cause, the sample is regarded as having passed with regard to the requirements of
paragraph 3 of this appendix.
3.6. Whenever a sample is increased due to the requirements of paragraph 3.5 above, the statistical procedure of
paragraph 4. is applied to the increased sample.
4. Procedure to be followed without separate evaluation of outlying emitters in the sample
4.1. With a minimum sample size of three the sampling procedure is set so that the probability of a batch passing
a test with 40 per cent of the production defective is 0,95 (producer's risk = 5 per cent) while the probability
of a batch being accepted with 75 per cent of the production defective is 0,15 (consumer's risk = 15 per
cent).
(2) For any vehicle, the ‘failure zone’ is determined as follows: The measured value for any regulated pollutant exceeds a level that is
determined from the product of the limit value for the same regulated pollutant given in Table 1 of paragraph 5.3.1.4 of this Regulation
multiplied by a factor of 2,5.15.2.2019 EN Official Journal of the European Union L 45/43
4.2. For each of the pollutants given in the Table 1 of paragraph 5.3.1.4 of this Regulation, the following
procedure is used (see Figure App4/2 below).
Where:
L = the limit value for the pollutant,
x = the value of the measurement for the i-th vehicle of the sample,
i
n = the current sample number.
4.3. The test statistic quantifying the number of non-conforming vehicles, i.e. x > L, is computed for the sample.
i
4.4. Then:
(a) If the test statistic does not exceed the pass decision number for the sample size given in Table App4/1,
a pass decision is reached for the pollutant;
(b) If the test statistic equals or exceeds the fail decision number for the sample size given in Table App4/1,
a fail decision is reached for the pollutant;
(c) Otherwise, an additional vehicle is tested and the procedure is applied to the sample with one extra unit.
In the following table the pass and fail decision numbers are computed in accordance with the International
Standard ISO 8422:1991.
5. A sample is regarded as having passed the test when it has passed both the requirements of paragraphs 3
and 4 of this appendix.
Table App4/1
Table for acceptance/rejection sampling plan by attributes
Cumulative sample size (n) Pass decision number Fail decision number
3 0 —
4 1 —
5 1 5
6 2 6
7 2 6
8 3 7
9 4 8
10 4 8
11 5 9
12 5 9
13 6 10
14 6 11
15 7 11
16 8 12
17 8 12
18 9 13
19 9 13
20 11 12L 45/44 EN Official Journal of the European Union 15.2.2019
Figure App4/1
In-service conformity checking - audit procedure15.2.2019 EN Official Journal of the European Union L 45/45
Figure App4/2
In-service conformity testing - Selection and test of vehiclesL 45/46 EN Official Journal of the European Union 15.2.2019
APPENDIX 5
RESPONSIBILITIES FOR IN-SERVICE CONFORMITY
1. The process of checking in-service conformity is illustrated in Figure App5/1.
2. The manufacturer shall compile all the information needed to comply with the requirements of this appendix. The
Type Approval Authority may also take information from surveillance programmes into consideration.
3. The Type Approval Authority shall conduct all the procedures and tests necessary to ensure that the requirements
regarding the in-service conformity are met (Phases 2 to 4).
4. In the event of discrepancies or disagreements in the assessment of information supplied, the Type Approval
Authority shall request clarification from the Technical Service that conducted the type approval test.
5. The manufacturer shall establish and implement a plan of remedial measures. This plan shall be approved by the
Type Approval Authority before it is implemented (Phase 5).
Figure App5/1
Illustration of the in-service conformity process15.2.2019 EN Official Journal of the European Union L 45/47
APPENDIX 6
REQUIREMENTS FOR VEHICLES THAT USE A REAGENT FOR THE EXHAUST AFTER-TREATMENT SYSTEM
1. INTRODUCTION
This appendix sets out the requirements for vehicles that rely on the use of a reagent for the after-treatment
system in order to reduce emissions.
2. REAGENT INDICATION
2.1. The vehicle shall include a specific indicator on the dashboard that informs the driver of low levels of reagent in
the reagent storage tank and of when the reagent tank becomes empty.
3. DRIVER WARNING SYSTEM
3.1. The vehicle shall include a warning system consisting of visual alarms that informs the driver when the reagent
level is low, that the tank soon needs to be refilled, or the reagent is not of a quality specified by the
manufacturer. The warning system may also include an audible component to alert the driver.
3.2. The warning system shall escalate in intensity as the reagent approaches empty. It shall culminate in a driver
notification that cannot be easily defeated or ignored. It shall not be possible to turn off the system until the
reagent has been replenished.
3.3. The visual warning shall display a message indicating a low level of reagent. The warning shall not be the same as
the warning used for the purposes of OBD or other engine maintenance. The warning shall be sufficiently clear
for the driver to understand that the reagent level is low (e.g. ‘urea level low’, ‘AdBlue level low’, or ‘reagent low’).
3.4. The warning system does not initially need to be continuously activated, however the warning shall escalate so
that it becomes continuous as the level of the reagent approaches the point where the driver inducement system
in paragraph 8. of this appendix comes into effect. An explicit warning shall be displayed (e.g. ‘fill up urea’, ‘fill
up AdBlue’, or ‘fill up reagent’). The continuous warning system may be temporarily interrupted by other
warning signals providing important safety related messages.
3.5. The warning system shall activate at a distance equivalent to a driving range of at least 2 400 km in advance of
the reagent tank becoming empty.
4. IDENTIFICATION OF INCORRECT REAGENT
4.1. The vehicle shall include a means of determining that a reagent corresponding to the characteristics declared by
the manufacturer and recorded in Annex 1 to this Regulation is present on the vehicle.
4.2. If the reagent in the storage tank does not correspond to the minimum requirements declared by the
manufacturer the driver warning system in paragraph 3 of this appendix shall be activated and shall display
a message indicating an appropriate warning (e.g. ‘incorrect urea detected’, ‘incorrect AdBlue detected’, or
‘incorrect reagent detected’). If the reagent quality is not rectified within 50 km of the activation of the warning
system then the driver inducement requirements of paragraph 8 of this appendix shall apply.
5. REAGENT CONSUMPTION MONITORING
5.1. The vehicle shall include a means of determining reagent consumption and providing off-board access to
consumption information.
5.2. Average reagent consumption and average demanded reagent consumption by the engine system shall be
available via the serial port of the standard diagnostic connector. Data shall be available over the previous
complete 2 400 km period of vehicle operation.
5.3. In order to monitor reagent consumption, at least the following parameters within the vehicle shall be monitored:
(a) The level of reagent in the on-vehicle storage tank; and
(b) The flow of reagent or injection of reagent as close as technically possible to the point of injection into an
exhaust after-treatment system.L 45/48 EN Official Journal of the European Union 15.2.2019
5.4. A deviation of more than 50 per cent between the average reagent consumption and the average demanded
reagent consumption by the engine system over a period of 30 minutes of vehicle operation, shall result in the
activation of the driver warning system in paragraph 3 above, which shall display a message indicating an
appropriate warning (e.g. ‘urea dosing malfunction’, ‘AdBlue dosing malfunction’, or ‘reagent dosing malfunction’).
If the reagent consumption is not rectified within 50 km of the activation of the warning system then the driver
inducement requirements of paragraph 8 below shall apply.
5.5. In the case of interruption in reagent dosing activity the driver warning system as referred to in paragraph 3 shall
be activated, which shall display a message indicating an appropriate warning. This activation shall not be
required where the interruption is demanded by the Engine Control Unit (ECU) because the vehicle operating
conditions are such that the vehicle's emission performance does not require reagent dosing, provided that the
manufacturer has clearly informed the Type Approval Authority when such operating conditions apply. If the
reagent dosing is not rectified within 50 km of the activation of the warning system then the driver inducement
requirements of paragraph 8 below shall apply.
6. MONITORING NO EMISSIONS
x
6.1. As an alternative to the monitoring requirements in paragraphs 4 and 5 above, manufacturers may use exhaust
gas sensors directly to sense excess NO levels in the exhaust.
x
6.2. The manufacturer shall demonstrate that use of the sensors referred to in paragraph 6.1 above and any other
sensors on the vehicle, results in the activation of the driver warning system as referred to in paragraph 3 above,
the display of a message indicating an appropriate warning (e.g. ‘emissions too high — check urea’, ‘emissions too
high — check AdBlue’, ‘emissions too high — check reagent’), and the driver inducement system as referred to in
paragraph 8.3 below, when the situations referred to in paragraphs 4.2, 5.4 or 5.5 above occur.
For the purposes of this paragraph these situations are presumed to occur if the applicable NO OBD threshold
x
limit of the tables set out in paragraph 3.3.2 of Annex 11 to this Regulation is exceeded.
NO emissions during the test to demonstrate compliance with these requirements shall be no more than 20 per
x
cent higher than the OBD threshold limits.
7. STORAGE OF FAILURE INFORMATION
7.1. Where reference is made to this paragraph, non-erasable Parameter Identifiers (PID) shall be stored identifying the
reason for and the distance travelled by the vehicle during the inducement system activation. The vehicle shall
retain a record of the PID for at least 800 days or 30 000 km of vehicle operation. The PID shall be made
available via the serial port of a standard diagnostic connector upon request of a generic scan tool according to
the provisions of paragraph 6.5.3.1 of Appendix 1 to Annex 11 to this Regulation. The information stored in the
PID shall be linked to the period of cumulated vehicle operation, during which it has occurred, with an accuracy
of not less than 300 days or 10 000 km.
7.2. Malfunctions in the reagent dosing system attributed to technical failures (e.g. mechanical or electrical faults) shall
also be subject to the OBD requirements in Annex 11 to this Regulation.
8. DRIVER INDUCEMENT SYSTEM
8.1. The vehicle shall include a driver inducement system to ensure that the vehicle operates with a functioning
emissions control system at all times. The inducement system shall be designed so as to ensure that the vehicle
cannot operate with an empty reagent tank.
8.1.1. The requirement for a driver inducement system shall not apply to vehicles designed and constructed for use by
the rescue services, armed services, civil defence, fire services and forces responsible for maintaining public order.
Permanent deactivation of the driver inducement system for these vehicles shall only be done by the vehicle
manufacturer.
8.2. The inducement system shall activate at the latest when the level of reagent in the tank reaches a level equivalent
to the average driving range of the vehicle with a complete tank of fuel. The system shall also activate when the
failures in paragraphs 4, 5, or 6 above have occurred, depending on the NO monitoring approach. The detection
x
of an empty reagent tank and the failures mentioned in paragraphs 4, 5, or 6 above shall result in the failure
information storage requirements of paragraph 7 above coming into effect.15.2.2019 EN Official Journal of the European Union L 45/49
8.3. The manufacturer shall select which type of inducement system to install. The options for a system are described
in paragraphs 8.3.1, 8.3.2, 8.3.3 and 8.3.4 below.
8.3.1. A ‘no engine restart after countdown’ approach allows a countdown of restarts or distance remaining once the
inducement system activates. Engine starts initiated by the vehicle control system, such as start-stop systems, are
not included in this countdown. Engine restarts shall be prevented immediately after the reagent tank becomes
empty or a distance equivalent to a complete tank of fuel has been exceeded since the activation of the
inducement system, whichever occurs earlier.
8.3.2. A ‘no start after refuelling’ system results in a vehicle being unable to start after re-fuelling if the inducement
system has activated.
8.3.3. A ‘fuel-lockout’ approach prevents the vehicle from being refuelled by locking the fuel filler system after the
inducement system activates. The lockout system shall be robust to prevent it being tampered with.
8.3.4. A ‘performance restriction’ approach restricts the speed of the vehicle after the inducement system activates. The
level of speed limitation shall be noticeable to the driver and significantly reduce the maximum speed of the
vehicle. Such limitation shall enter into operation gradually or after an engine start. Shortly before engine restarts
are prevented, the speed of the vehicle shall not exceed 50 km/h. Engine restarts shall be prevented immediately
after the reagent tank becomes empty or a distance equivalent to a complete tank of fuel has been exceeded since
the activation of inducement system, whichever occurs earlier.
8.4. Once the inducement system has fully activated and disabled the vehicle, the inducement system shall only be
deactivated if the quantity of reagent added to the vehicle is equivalent to 2 400 km average driving range, or the
failures specified in paragraphs 4, 5, or 6 of this appendix have been rectified. After a repair has been carried out
to correct a fault where the OBD system has been triggered under paragraph 7.2 above, the inducement system
may be reinitialised via the OBD serial port (e.g. by a generic scan tool) to enable the vehicle to be restarted for
self-diagnosis purposes. The vehicle shall operate for a maximum of 50 km to enable the success of the repair to
be validated. The inducement system shall be fully reactivated if the fault persists after this validation.
8.5. The driver warning system referred to in paragraph 3 of this appendix shall display a message indicating clearly:
(a) The number of remaining restarts and/or the remaining distance; and
(b) The conditions under which the vehicle can be restarted.
8.6. The driver inducement system shall be deactivated when the conditions for its activation have ceased to exist. The
driver inducement system shall not be automatically deactivated without the reason for its activation having been
remedied.
8.7. Detailed written information fully describing the functional operation characteristics of the driver inducement
system shall be provided to the Type Approval Authority at the time of approval.
8.8. As part of the application for type approval under this Regulation, the manufacturer shall demonstrate the
operation of the driver warning and inducement systems.
9. INFORMATION REQUIREMENTS
9.1. The manufacturer shall provide all owners of new vehicles written information about the emission control
system. This information shall state that if the vehicle emission control system is not functioning correctly, the
driver shall be informed of a problem by the driver warning system and that the driver inducement system shall
consequentially result in the vehicle being unable to start.
9.2. The instructions shall indicate requirements for the proper use and maintenance of vehicles, including the proper
use of consumable reagents.
9.3. The instructions shall specify if consumable reagents have to be refilled by the vehicle operator between normal
maintenance intervals. They shall indicate how the driver should refill the reagent tank. The information shall
also indicate a likely rate of reagent consumption for that type of vehicle and how often it should be replenished.
9.4. The instructions shall specify that use of, and refilling of, a required reagent of the correct specifications is
mandatory for the vehicle to comply with the certificate of conformity issued for that vehicle.L 45/50 EN Official Journal of the European Union 15.2.2019
9.5. The instructions shall state that it may be a criminal offence to use a vehicle that does not consume any reagent
if it is required for the reduction of emissions.
9.6. The instructions shall explain how the warning system and driver inducement systems work. In addition, the
consequences of ignoring the warning system and not replenishing the reagent shall be explained.
10. OPERATING CONDITIONS OF THE AFTER-TREATMENT SYSTEM
Manufacturers shall ensure that the emission control system retains its emission control function during all
ambient conditions, especially at low ambient temperatures. This includes taking measures to prevent the
complete freezing of the reagent during parking times of up to 7 days at 258 K (– 15 °C) with the reagent
tank 50 per cent full. If the reagent has frozen, the manufacturer shall ensure that reagent shall be available for
use within 20 minutes of the vehicle starting at 258 K (– 15 °C) measured inside the reagent tank, so as to ensure
correct operation of the emission control system.15.2.2019 EN Official Journal of the European Union L 45/51
ANNEX 1
ENGINE AND VEHICLE CHARACTERISTICS AND INFORMATION CONCERNING THE CONDUCT OF TESTS
The following information, when applicable, shall be supplied in triplicate and include a list of contents.
If there are drawings, they shall be to an appropriate scale and show sufficient detail; they shall be presented in A4
format or folded to that format. Photographs, if any, shall show sufficient detail.
If the systems, components or separate technical units have electronic controls, information concerning their
performance shall be supplied.
0. General
0.1. Make (name of undertaking): ..........................................................................................................
0.2. Type: .............................................................................................................................................
0.2.1. Commercial name(s), if available: ....................................................................................................
0.3. Means of identification of type, if marked on the vehicle (1): .............................................................
0.3.1. Location of that mark: ....................................................................................................................
0.4. Category of vehicle (2): ....................................................................................................................
0.5. Name and address of manufacturer: ................................................................................................
0.8. Name(s) and address(es) of assembly plant(s): ...................................................................................
0.9. Name and address of manufacturer's authorized representative where appropriate: ............................
.......................................................................................................................................................
1. General construction characteristics of the vehicle
1.1. Photographs and/or drawings of a representative vehicle: ..................................................................
1.3.3. Powered axles (number, position, interconnection): ..........................................................................
2. Masses and dimensions (3) (in kg and mm) (refer to drawing where applicable) ..................................
2.6. Mass of the vehicle with bodywork and, in the case of a towing vehicle of category other than M ,
1
with coupling device, if fitted by the manufacturer, in running order, or mass of the chassis or chassis
with cab, without bodywork and/or coupling device if the manufacturer does not fit the bodywork
and/or coupling device (including liquids, tools, spare wheel, if fitted, and driver and, for buses and
coaches, a crew member if there is a crew seat in the vehicle) (4) (maximum and minimum for each
variant): .........................................................................................................................................
2.8. Technically permissible maximum laden mass as stated by the manufacturer (5) (6):L 45/52 EN Official Journal of the European Union 15.2.2019
3. Description of energy converters and power plant (7). (In the case of a vehicle that can run either on
petrol, diesel, etc., or also in combination with another fuel, items shall be repeated (8).) ....................
3.1. Engine Manufacturer: ......................................................................................................................
3.1.1. Manufacturer's engine code (as marked on the engine, or other means of identification): ....................
3.2. Internal combustion engine: ............................................................................................................
3.2.1. Specific engine information: ............................................................................................................
3.2.1.1. Working principle: positive ignition/compression-ignition, four-stroke/two-stroke/rotary cycle (9)
3.2.1.2. Number, arrangement of cylinders: ..................................................................................................
3.2.1.2.1. Bore (10): ................................................................................................................................. mm
3.2.1.2.2. Stroke (10): .............................................................................................................................. mm
3.2.1.2.3. Firing order: ...................................................................................................................................
3.2.1.3. Engine capacity (11): .................................................................................................................. cm3
3.2.1.4. Volumetric compression ratio (12): ...................................................................................................
3.2.1.5. Drawings of combustion chamber and piston crown and, in the case of positive ignition engine,
piston rings: ...................................................................................................................................
3.2.1.6. Normal engine idling speed (12): ......................................................................................................
3.2.1.6.1. High idle engine speed (12): .............................................................................................................
3.2.1.7. Carbon monoxide content by volume in the exhaust gas with the engine idling (according to the
manufacturer's specifications, positive ignition engines only) (12) .......................................... per cent
3.2.1.8. Maximum net power (13): .............................................. kW at .............................................. min– 1
3.2.1.9. Maximum permitted engine speed as prescribed by the manufacturer: ...................................... min– 1
3.2.1.10. Maximum net torque (13): ...................... Nm at: ..................... min– 1 (manufacturer's declared value)
3.2.2. Fuel
3.2.2.1. Light-duty vehicles: Diesel/Petrol/LPG/NG or Biomethane/Ethanol (E85)/Biodiesel/Hydrogen (14) .........
3.2.2.2. Research octane number (RON), unleaded: .......................................................................................
3.2.2.3. Fuel tank inlet: restricted orifice/label (9)
3.2.2.4. Vehicle fuel type: Mono fuel/Bi-fuel/Flex-fuel (9)
3.2.2.5. Maximum amount of biofuel acceptable in fuel (manufacturer's declared value): ................................
per cent by volume15.2.2019 EN Official Journal of the European Union L 45/53
3.2.4. Fuel feed
3.2.4.2. By fuel injection (compression-ignition only): yes/no (9)
3.2.4.2.1. System description: ........................................................................................................................
3.2.4.2.2. Working principle: direct-injection/pre-chamber/swirl Chamber (9)
3.2.4.2.3. Injection pump
3.2.4.2.3.1. Make(s): .........................................................................................................................................
3.2.4.2.3.2. Type(s): ..........................................................................................................................................
3.2.4.2.3.3. Maximum fuel delivery (9) (12) ........................................................ mm3 stroke or cycle at an engine
speed of (9) (12): ...................................... min– 1 or characteristic diagram: ......................................
3.2.4.2.3.5. Injection advance curve (12): ............................................................................................................
3.2.4.2.4. Governor
3.2.4.2.4.2. Cut-off point: .................................................................................................................................
3.2.4.2.4.2.1. Cut-off point under load: ....................................................................................................... min– 1
3.2.4.2.4.2.2. Cut-off point without load: .................................................................................................... min– 1
3.2.4.2.6. Injector(s): ......................................................................................................................................
3.2.4.2.6.1. Make(s): .........................................................................................................................................
3.2.4.2.6.2. Type(s): ..........................................................................................................................................
3.2.4.2.7. Cold start system ...........................................................................................................................
3.2.4.2.7.1. Make(s): .........................................................................................................................................
3.2.4.2.7.2. Type(s): ..........................................................................................................................................
3.2.4.2.7.3. Description: ...................................................................................................................................
3.2.4.2.8. Auxiliary starting aid
3.2.4.2.8.1. Make(s): .........................................................................................................................................
3.2.4.2.8.2. Type(s): ..........................................................................................................................................
3.2.4.2.8.3. System description: ........................................................................................................................
3.2.4.2.9. Electronic controlled injection: yes/no (9) .........................................................................................
3.2.4.2.9.1. Make(s): .........................................................................................................................................
3.2.4.2.9.2. Type(s): ..........................................................................................................................................
3.2.4.2.9.3. Description of the system (in the case of systems other than continuous injection, give equivalent
details): ..........................................................................................................................................
3.2.4.2.9.3.1. Make and type of the control unit: ..................................................................................................
3.2.4.2.9.3.2. Make and type of the fuel regulator: ................................................................................................L 45/54 EN Official Journal of the European Union 15.2.2019
3.2.4.2.9.3.3. Make and type of air-flow sensor: ...................................................................................................
3.2.4.2.9.3.4. Make and type of fuel distributor: ...................................................................................................
3.2.4.2.9.3.5. Make and type of throttle housing: ..................................................................................................
3.2.4.2.9.3.6. Make and type of water temperature sensor: ....................................................................................
3.2.4.2.9.3.7. Make and type of air temperature sensor: ........................................................................................
3.2.4.2.9.3.8. Make and type of air pressure sensor: ..............................................................................................
3.2.4.3. By fuel injection (positive ignition only): yes/no (9)
3.2.4.3.1. Working principle: intake manifold (single/multi-point)/direct injection/other (specify) .......................
3.2.4.3.2. Make(s): .........................................................................................................................................
3.2.4.3.3. Type(s): ..........................................................................................................................................
3.2.4.3.4. System description (in the case of systems other than continuous injection give equivalent
details): ..........................................................................................................................................
3.2.4.3.4.1. Make and type of the control unit: ..................................................................................................
3.2.4.3.4.2. Make and type of the fuel regulator: ................................................................................................
3.2.4.3.4.3. Make and type of the air-flow sensor: ..............................................................................................
3.2.4.3.4.6. Make and type of the micro-switch: ................................................................................................
3.2.4.3.4.8. Make and type of the throttle housing: ............................................................................................
3.2.4.3.4.9. Make and type of the water temperature sensor: ..............................................................................
3.2.4.3.4.10. Make and type of the air temperature sensor: ..................................................................................
3.2.4.3.5. Injectors: Opening pressure (9) (12): .......................... kPa or characteristic diagram: ..........................
3.2.4.3.5.1. Make(s): .........................................................................................................................................
3.2.4.3.5.2. Type(s): ..........................................................................................................................................
3.2.4.3.6. Injection timing: .............................................................................................................................
3.2.4.3.7. Cold start system: ...........................................................................................................................
3.2.4.3.7.1. Operating principle(s): ....................................................................................................................
3.2.4.3.7.2. Operating limits/settings (9) (12) .......................................................................................................
3.2.4.4. Feed pump .....................................................................................................................................
3.2.4.4.1. Pressure (9) (12) ........................................ kPa or characteristic diagram: ........................................
3.2.5. Electrical system .............................................................................................................................
3.2.5.1. Rated voltage: ................................................................................... V, positive/negative ground (9)
3.2.5.2. Generator
3.2.5.2.1. Type: .............................................................................................................................................
3.2.5.2.2. Nominal output: ....................................................................................................................... VA
3.2.6. Ignition ..........................................................................................................................................
3.2.6.1. Make(s): .........................................................................................................................................15.2.2019 EN Official Journal of the European Union L 45/55
3.2.6.2. Type(s): ..........................................................................................................................................
3.2.6.3. Working principle: .........................................................................................................................
3.2.6.4. Ignition advance curve (12): .............................................................................................................
3.2.6.5. Static ignition timing (12) ........................................ degrees before TDC ........................................
3.2.7. Cooling system: liquid/air (9)
3.2.7.1. Nominal setting of the engine temperature control mechanism: ........................................................
3.2.7.2. Liquid
3.2.7.2.1. Nature of liquid: .............................................................................................................................
3.2.7.2.2. Circulating pump(s): yes/no (9)
3.2.7.2.3. Characteristics: .........................................................................................................................., or
3.2.7.2.3.1. Make(s): .........................................................................................................................................
3.2.7.2.3.2. Type(s): ..........................................................................................................................................
3.2.7.2.4. Drive ratio(s): .................................................................................................................................
3.2.7.2.5. Description of the fan and its drive mechanism: ...............................................................................
3.2.7.3. Air
3.2.7.3.1. Blower: yes/no (9)
3.2.7.3.2. Characteristics: .........................................................................................................................., or
3.2.7.3.2.1. Make(s): .........................................................................................................................................
3.2.7.3.2.2. Type(s): ..........................................................................................................................................
3.2.7.3.3. Drive ratio(s): .................................................................................................................................
3.2.8. Intake system: ................................................................................................................................
3.2.8.1. Pressure charger: yes/no (9) .............................................................................................................
3.2.8.1.1. Make(s): .........................................................................................................................................
3.2.8.1.2. Type(s): ..........................................................................................................................................
3.2.8.1.3. Description of the system (maximum charge pressure: ............ kPa, waste-gate, if applicable) ............
3.2.8.2. Inter-cooler: yes/no (9)
3.2.8.2.1. Type: air-air/air-water (9)
3.2.8.3. Intake depression at rated engine speed and at 100 per cent load (compression ignition engines only)
Minimum allowable: ................................................................................................................. kPa
Maximum allowable: ................................................................................................................. kPa
3.2.8.4. Description and drawings of inlet pipes and their accessories (plenum chamber, heating device,
additional air intakes, etc.): ..............................................................................................................
3.2.8.4.1. Intake manifold description (drawings and/or photographs): .............................................................
3.2.8.4.2. Air filter, drawings: ...................................................................................................................., or
3.2.8.4.2.1. Make(s): .........................................................................................................................................L 45/56 EN Official Journal of the European Union 15.2.2019
3.2.8.4.2.2. Type(s): ..........................................................................................................................................
3.2.8.4.3. Intake silencer, drawings............................................................................................................., or
3.2.8.4.3.1. Make(s): .........................................................................................................................................
3.2.8.4.3.2. Type(s): ..........................................................................................................................................
3.2.9. Exhaust system................................................................................................................................
3.2.9.1. Description and/or drawing of the exhaust manifold: .......................................................................
3.2.9.2. Description and/or drawing of the exhaust system: ..........................................................................
3.2.9.3. Maximum allowable exhaust back pressure at rated engine speed and at 100 per cent load
(compression ignition engines only): .......................................................................................... kPa
3.2.9.10. Minimum cross-sectional areas of inlet and outlet ports: ..................................................................
3.2.11. Valve timing or equivalent data: ......................................................................................................
3.2.11.1. Maximum lift of valves, angles of opening and closing, or timing details of alternative distribution
systems, in relation to dead centres (for variable timing system, minimum and maximum
timing): ..........................................................................................................................................
3.2.11.2. Reference and/or setting ranges (9) (12): ............................................................................................
3.2.12. Measures taken against air pollution: ...............................................................................................
3.2.12.1. Device for recycling crankcase gases (description and drawings): .......................................................
3.2.12.2. Additional pollution control devices (if any, and if not covered by another heading): .........................
3.2.12.2.1. Catalytic converter: yes/no (9) ..........................................................................................................
3.2.12.2.1.1. Number of catalytic converters and elements (provide the information below for each separate
unit: ..............................................................................................................................................
3.2.12.2.1.2. Dimensions and shape of the catalytic converter(s) (volume, etc.): .....................................................
3.2.12.2.1.3. Type of catalytic action: ..................................................................................................................
3.2.12.2.1.4. Total charge of precious metal: ........................................................................................................
3.2.12.2.1.5. Relative concentration: ...................................................................................................................
3.2.12.2.1.6. Substrate (structure and material): ...................................................................................................
3.2.12.2.1.7. Cell density: ...................................................................................................................................
3.2.12.2.1.8. Type of casing for catalytic converter(s): ..........................................................................................
3.2.12.2.1.9. Positioning of the catalytic converter(s) (place and reference distances in the exhaust system): ............
3.2.12.2.1.10. Heat shield: yes/no (9)
3.2.12.2.1.11. Regeneration systems/method of exhaust after-treatment systems, description: ...................................
3.2.12.2.1.11.1. The number of Type I operating cycles, or equivalent engine test bench cycles, between two cycles
where regenerative phases occur under the conditions equivalent to Type I test (Distance ‘D’ in
Figure A13/1 in Annex 13 to this Regulation): .................................................................................
3.2.12.2.1.11.2 Description of method employed to determine the number of cycles between two cycles where
regenerative phases occur: ...............................................................................................................15.2.2019 EN Official Journal of the European Union L 45/57
3.2.12.2.1.11.3. Parameters to determine the level of loading required before regeneration occurs (i.e. temperature,
pressure etc.): .................................................................................................................................
3.2.12.2.1.11.4. Description of method used to load system in the test procedure described in paragraph 3.1 of
Annex 13 to this Regulation: ..........................................................................................................
3.2.12.2.1.11.5. Normal operating temperature range (K): .........................................................................................
3.2.12.2.1.11.6. Consumable reagents (where appropriate): .......................................................................................
3.2.12.2.1.11.7. Type and concentration of reagent needed for catalytic action (where appropriate): ............................
3.2.12.2.1.11.8. Normal operational temperature range of reagent (where appropriate): ..............................................
3.2.12.2.1.11.9. International standard (where appropriate): ......................................................................................
3.2.12.2.1.11.10. Frequency of reagent refill: continuous/maintenance (9) (where appropriate): ......................................
3.2.12.2.1.12. Make of catalytic converter: ............................................................................................................
3.2.12.2.1.13. Identifying part number: .................................................................................................................
3.2.12.2.2. Oxygen sensor: yes/no (9) ................................................................................................................
3.2.12.2.2.1. Type...............................................................................................................................................
3.2.12.2.2.2. Location of oxygen sensor: .............................................................................................................
3.2.12.2.2.3. Control range of oxygen sensor (12): ................................................................................................
3.2.12.2.2.4. Make of oxygen sensor: ..................................................................................................................
3.2.12.2.2.5. Identifying part number: .................................................................................................................
3.2.12.2.3. Air injection: yes/no (9)
3.2.12.2.3.1. Type (pulse air, air pump, etc.): .......................................................................................................
3.2.12.2.4. Exhaust gas recirculation (EGR): yes/no (9) .......................................................................................
3.2.12.2.4.1. Characteristics (flow rate, etc.): ........................................................................................................
3.2.12.2.4.2. Water cooled system: yes/no (9) .......................................................................................................
3.2.12.2.5. Evaporative emission control system: yes/no (9)
3.2.12.2.5.1. Detailed description of the devices and their state of tune: ................................................................
3.2.12.2.5.2. Drawing of the evaporative control system: .....................................................................................
3.2.12.2.5.3. Drawing of the carbon canister: ......................................................................................................
3.2.12.2.5.4. Mass of dry charcoal: .................................................................................................................... g
3.2.12.2.5.5. Schematic drawing of the fuel tank with indication of capacity and material: .....................................
3.2.12.2.5.6. Drawing of the heat shield between tank and exhaust system: ..........................................................
3.2.12.2.6. Particulate trap: yes/no (9)
3.2.12.2.6.1. Dimensions and shape of the particulate trap (capacity):
3.2.12.2.6.2. Type and design of particulate trap: .................................................................................................
3.2.12.2.6.3. Location of the particulate trap (reference distances in the exhaust line): ...........................................L 45/58 EN Official Journal of the European Union 15.2.2019
3.2.12.2.6.4. Regeneration system/method. Description and/or drawing: ...............................................................
3.2.12.2.6.4.1. The number of Type I operating cycles, or equivalent engine test bench cycle, between two cycles
where regeneration phases occur under the conditions equivalent to Type I test (Distance ‘D’ in
Figure A13/1 of Annex 13 to this Regulation): ................................................................................
3.2.12.2.6.4.2. Description of method employed to determine the number of cycles between two cycles where
regenerative phases occur: ...............................................................................................................
3.2.12.2.6.4.3. Parameters to determine the level of loading required before regeneration occurs (i.e. temperature,
pressure, etc.): ................................................................................................................................
3.2.12.2.6.4.4. Description of method used to load system in the test procedure described in paragraph 3.1 of
Annex 13 to this Regulation: ..........................................................................................................
3.2.12.2.6.5. Make of particulate trap: .................................................................................................................
3.2.12.2.6.6. Identifying part number: .................................................................................................................
3.2.12.2.7. On-board-diagnostic (OBD) system: (yes/no) (9)
3.2.12.2.7.1. Written description and/or drawing of the Malfunction Indicator (MI): ..............................................
3.2.12.2.7.2. List and purpose of all components monitored by the OBD system: ..................................................
.......................................................................................................................................................
3.2.12.2.7.3. Written description (general working principles) for: ........................................................................
.......................................................................................................................................................
3.2.12.2.7.3.1. Positive ignition engines
3.2.12.2.7.3.1.1. Catalyst monitoring: .......................................................................................................................
3.2.12.2.7.3.1.2. Misfire detection: ............................................................................................................................
3.2.12.2.7.3.1.3. Oxygen sensor monitoring: .............................................................................................................
3.2.12.2.7.3.1.4. Other components monitored by the OBD system: ..........................................................................
3.2.12.2.7.3.2. Compression-ignition engines
3.2.12.2.7.3.2.1. Catalyst monitoring: .......................................................................................................................
3.2.12.2.7.3.2.2. Particulate traps monitoring: ...........................................................................................................
3.2.12.2.7.3.2.3. Electronic fuelling system monitoring: .............................................................................................
3.2.12.2.7.3.2.4. Other components monitored by the OBD system: ..........................................................................
3.2.12.2.7.4. Criteria for MI activation (fixed number of driving cycles or statistical method): ................................
3.2.12.2.7.5. List of all OBD output codes and formats used (with explanation of each): ........................................
3.2.12.2.7.6. The following additional information shall be provided by the vehicle manufacturer for the purposes
of enabling the manufacture of OBD-compatible replacement or service parts and diagnostic tools and
test equipment, unless such information is covered by intellectual property rights or constitutes
specific know-how of the manufacturer or its supplier(s).
3.2.12.2.7.6.1. A description of the type and number of the pre-conditioning cycles used for the original type
approval of the vehicle.
3.2.12.2.7.6.2. A description of the type of the OBD demonstration cycle used for the original type-approval of the
vehicle for the component monitored by the OBD system.15.2.2019 EN Official Journal of the European Union L 45/59
3.2.12.2.7.6.3. A comprehensive document describing all sensed components with the strategy for fault detection
and MI activation (fixed number of driving cycles or statistical method), including a list of relevant
secondary sensed parameters for each component monitored by the OBD system. A list of all OBD
output codes and format used (with an explanation of each) associated with individual emission
related power-train components and individual non-emission related components, where monitoring
of the component is used to determine MI activation. In particular, a comprehensive explanation for
the data given in service $05 Test ID $21 to FF and the data given in service $06 shall be provided. In
the case of vehicle types that use a communication link in accordance with the standard listed in
paragraph 6.5.3.1(a) of Annex 11, Appendix 1 of this Regulation, a comprehensive explanation for
the data given in service $06 Test ID $00 to FF, for each OBD monitor ID supported, shall be
provided.
3.2.12.2.7.6.4. The information required by this paragraph may, for example, be defined by completing a table as
follows, which shall be attached to this annex:
Fault MI Demon
Com Fault Monitoring Secondary Precondi-
detection activation stration
ponent code strategy parameters tioning
criteria criteria test
Catalyst P0420 Oxygen Difference 3rd cycle Engine Two Type I
sensor 1 between speed, Type I
and 2 sensor 1 engine load, cycles
signals and A/F mode,
sensor 2 catalyst
signals temperature
3.2.12.2.8. Other systems (description and operation): ......................................................................................
3.2.13. Location of the absorption coefficient symbol (compression ignition engines only): ...........................
3.2.14. Details of any devices designed to influence fuel economy (if not covered by other items): .................
3.2.15. LPG fuelling system: yes/no (9) ........................................................................................................
3.2.15.1. Approval number (approval number of Regulation No 67): ..............................................................
3.2.15.2. Electronic engine management control unit for LPG fuelling
3.2.15.2.1. Make(s): .........................................................................................................................................
3.2.15.2.2. Type(s): ..........................................................................................................................................
3.2.15.2.3. Emission-related adjustment possibilities: .........................................................................................
3.2.15.3. Further documentation: ..................................................................................................................
3.2.15.3.1. Description of the safeguarding of the catalyst at switch-over from petrol to LPG or back: .................
3.2.15.3.2. System layout (electrical connections, vacuum connections, compensation hoses, etc.)
3.2.15.3.3. Drawing of the symbol: ..................................................................................................................
3.2.16. NG fuelling system: yes/no (9)
3.2.16.1. Approval number (approval number of Regulation No 110): ............................................................L 45/60 EN Official Journal of the European Union 15.2.2019
3.2.16.2. Electronic engine management control unit for NG fuelling
3.2.16.2.1. Make(s): .........................................................................................................................................
3.2.16.2.2. Type(s): ..........................................................................................................................................
3.2.16.2.3. Emission-related adjustment possibilities: .........................................................................................
3.2.16.3. Further documentation: ..................................................................................................................
3.2.16.3.1. Description of the safeguarding of the catalyst at switch-over from petrol to NG or back: ..................
3.2.16.3.2. System layout (electrical connections, vacuum connections, compensation hoses, etc.): ......................
3.2.16.3.3. Drawing of the symbol: ..................................................................................................................
3.2.18. Hydrogen fuelling system: yes/no (9)
3.2.18.1. Type approval number according to Global Technical Regulation (gtr) No 13 on hydrogen and fuel
cell vehicles: ...................................................................................................................................
3.2.18.2. Electronic engine management control unit for hydrogen fuelling
3.2.18.2.1. Make(s): .........................................................................................................................................
3.2.18.2.2. Type(s): ..........................................................................................................................................
3.2.18.2.3. Emission-related adjustment possibilities: .........................................................................................
3.2.18.3. Further documentation
3.2.18.3.1. Description of the safeguarding of the catalyst at switch-over from petrol to hydrogen or back: .........
3.2.18.3.2. System lay-out (electrical connections, vacuum connections compensation hoses, etc.): ......................
3.2.18.3.3. Drawing of the symbol: ..................................................................................................................
3.3. Electric motor
3.3.1. Type (winding, excitation): ..............................................................................................................
3.3.1.1. Maximum hourly output: ............................................................ kW (manufacturer's declared value)
3.3.1.1.1. Maximum net power (15): ............................................................ kW (manufacturer's declared value)
3.3.1.1.2. Maximum 30 minutes power (15): ................................................ kW (manufacturer's declared value)
3.3.1.2. Operating voltage: ....................................................................................................................... V
3.3.2. Battery
3.3.2.1. Number of cells: .............................................................................................................................
3.3.2.2. Mass: ......................................................................................................................................... kg
3.3.2.3. Capacity: ............................................................................................................... Ah (Amp-hours)
3.3.2.4. Position: ........................................................................................................................................
3.4. Engines or motor combinations
3.4.1. Hybrid Electric Vehicle: yes/no (9)15.2.2019 EN Official Journal of the European Union L 45/61
3.4.2. Category of Hybrid Electric vehicle Off Vehicle Charging/Not Off Vehicle Charging (9)
3.4.3. Operating mode switch: with/without (9)
3.4.3.1. Selectable modes.............................................................................................................................
3.4.3.1.1. Pure electric: yes/no (9)
3.4.3.1.2. Pure fuel consuming: yes/no (9)
3.4.3.1.3. Hybrid modes: yes/no (if yes, short description)
3.4.4. Description of the energy storage device: (battery, capacitor, flywheel/generator …) ...........................
3.4.4.1. Make(s): .........................................................................................................................................
3.4.4.2. Type(s): ..........................................................................................................................................
3.4.4.3. Identification number: ....................................................................................................................
3.4.4.4. Kind of electrochemical couple: .......................................................................................................
3.4.4.5. Energy: ........................ (for battery: voltage and capacity Ah in 2 h, for capacitor: J) .......................
3.4.4.6. Charger: on board/external/without (9)
3.4.5. Electric machines (describe each type of electric machine separately)
3.4.5.1. Make: ............................................................................................................................................
3.4.5.2. Type: .............................................................................................................................................
3.4.5.3. Primary use: traction motor/generator
3.4.5.3.1. When used as traction motor: monomotor/multimotors (number): ...................................................
3.4.5.4. Maximum power: ..................................................................................................................... kW
3.4.5.5. Working principle: .........................................................................................................................
3.4.5.5.1. Direct current/alternating current/number of phases: ........................................................................
3.4.5.5.2. Separate excitation/series/compound (9) ...........................................................................................
3.4.5.5.3. Synchronous/asynchronous (9) ........................................................................................................
3.4.6. Control unit....................................................................................................................................
3.4.6.1. Make: ............................................................................................................................................
3.4.6.2. Type: .............................................................................................................................................
3.4.6.3. Identification number: ....................................................................................................................
3.4.7. Power controller..............................................................................................................................
3.4.7.1. Make: ............................................................................................................................................
3.4.7.2. Type: .............................................................................................................................................L 45/62 EN Official Journal of the European Union 15.2.2019
3.4.7.3. Identification number: ....................................................................................................................
3.4.8. Vehicle electric range ..................... km (according to Annex 9 of Regulation No 101): ....................
3.4.9. Manufacturer's recommendation for preconditioning:
3.6. Temperatures permitted by the manufacturer
3.6.1. Cooling system
3.6.1.1. Liquid cooling
3.6.1.1.1. Maximum temperature at outlet: .................................................................................................. K
3.6.1.2. Air cooling
3.6.1.2.1. Reference point: .............................................................................................................................
3.6.1.2.2. Maximum temperature at reference point: .................................................................................... K
3.6.2. Maximum outlet temperature of the inlet intercooler: .................................................................... K
3.6.3. Maximum exhaust temperature at the point in the exhaust pipe(s) adjacent to the outer flange(s) of
the exhaust manifold: .................................................................................................................. K
3.6.4. Fuel temperature
3.6.4.1. Minimum: ................................................................................................................................... K
3.6.4.2. Maximum: .................................................................................................................................. K
3.6.5. Lubricant temperature
3.6.5.1. Minimum: ................................................................................................................................... K
3.6.5.2. Maximum: .................................................................................................................................. K
3.8. Lubrication system
3.8.1. Description of the system
3.8.1.1. Position of the lubricant reservoir: ..................................................................................................
3.8.1.2. Feed system (by pump/injection into intake/mixing with fuel, etc.) (9)
3.8.2. Lubricating pump
3.8.2.1. Make(s): .........................................................................................................................................
3.8.2.2. Type(s): ..........................................................................................................................................
3.8.3. Mixture with fuel
3.8.3.1. Percentage: .....................................................................................................................................
3.8.4. Oil cooler: yes/no (9)
3.8.4.1. Drawing(s): ..............................................................................................................................., or
3.8.4.1.1. Make(s): .........................................................................................................................................
3.8.4.1.2. Type(s): ..........................................................................................................................................15.2.2019 EN Official Journal of the European Union L 45/63
4. Transmission (16)
4.3. Moment of inertia of engine flywheel: .............................................................................................
4.3.1. Additional moment of inertia with no gear engaged: ........................................................................
4.4. Clutch (type): .................................................................................................................................
4.4.1. Maximum torque conversion: ..........................................................................................................
4.5. Gearbox: ........................................................................................................................................
4.5.1. Type (manual/automatic/CVT (continuously variable transmission) (9) ...............................................
4.6. Gear ratios......................................................................................................................................
Internal gearbox ratios Final drive ratios (ratio
(ratios of engine to of gearbox output shaft Total gear
Index
gearbox output shaft to driven wheel revolu ratios
revolutions) tions)
Maximum for Continuously Variable
Transmission (CVT)
1
2
3
4, 5, others
Minimum for CVT
Reverse
6. Suspension......................................................................................................................................
6.6. Tyres and wheels.............................................................................................................................
6.6.1. Tyre/wheel combination(s)
(a) .................................................................................................................................................
For all tyre options indicate size designation, load-capacity index, speed category symbol;
(b) .................................................................................................................................................
For tyres of category Z intended to be fitted on vehicles whose maximum speed exceeds 300 km/h
equivalent information shall be provided; for wheels indicate rim size(s) and off-set(s).
6.6.1.1. Axles
6.6.1.1.1. Axle 1: ..........................................................................................................................................
6.6.1.1.2. Axle 2: ..........................................................................................................................................
6.6.1.1.3. Axle 3: ..........................................................................................................................................
6.6.1.1.4. Axle 4: .................................................................................................................................... etc.L 45/64 EN Official Journal of the European Union 15.2.2019
6.6.2. Upper and lower limit of rolling radii/circumference (17): ..................................................................
6.6.2.1. Axles
6.6.2.1.1. Axle 1: ..........................................................................................................................................
6.6.2.1.2. Axle 2: ..........................................................................................................................................
6.6.2.1.3. Axle 3: ..........................................................................................................................................
6.6.2.1.4. Axle 4: .................................................................................................................................... etc.
6.6.3. Tyre pressure(s) recommended by the manufacturer: .................................................................. kPa
9. Bodywork
9.1. Type of bodywork (18): ....................................................................................................................
9.10.3. .............................................................................................................................................. Seats
9.10.3.1. Number: ........................................................................................................................................
(1) If the means of identification of type contains characters not relevant to describe the vehicle, component or separate technical unit
types covered by this information document, such characters shall be represented in the documentation by the symbol ‘?’ (e.g.
ABC??123??).
(2) As defined in the Consolidated Resolution on the Construction of Vehicles (R.E.3.), document ECE/TRANS/WP.29/78/Rev.3,
para. 2. - www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29resolutions.html.
(3) Where there is one version with a normal cab and another with a sleeper cab, both sets of masses and dimensions are to be stated.
(4) The mass of the driver and, if applicable, of the crew member is assessed at 75 kg (subdivided into 68 kg occupant mass and 7 kg
luggage mass according to ISO Standard 2416 – 1992), the fuel tank is filled to 90 per cent and the other liquid containing
systems (except those for used water) to 100 per cent of the capacity s specified by the manufacturer.
(5) For trailers or semi-trailers, and for vehicles coupled with a trailer or a semi -trailer, which exert a significant vertical load on the
coupling device or the fifth wheel, this load, divided by standard acceleration of gravity, is included in the maximum technical
permissible mass.
(6) Please fill in here the upper and lower values for each variant.
(7) In the case of non-conventional engines and systems, particulars equivalent to those referred to here shall be supplied by the
manufacturer.
(8) Vehicles can be fuelled with both petrol and a gaseous fuel but if the petrol system is fitted for emergency purposes or starting
only and the petrol tank cannot contain more than 15 litres of petrol, they will be regarded for the test as vehicles which can only
run a gaseous fuel.
(9) Strike out what does not apply.
(10) This value shall be rounded-off to the nearest tenth of a millimetre.
(11) This value shall be calculated with π = 3,1416 and rounded-off to the nearest cm3.
(12) Specify the tolerance.
(13) Determined in accordance with the requirements of Regulation No 85.
(14) Delete where not applicable (there are cases where nothing needs to be deleted when more than one entry is applicable).
(15) Determined in accordance with the requirements of Regulation No 85.
(16) The specified particulars are to be given for any proposed variants.
(17) Specify one or another.
(18) As defined in the Consolidated Resolution on the Construction of Vehicles (R.E.3.), document ECE/TRANS/WP.29/78/Rev.3,
para. 2. - www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29resolutions.html.15.2.2019 EN Official Journal of the European Union L 45/65
APPENDIX 1
INFORMATION ON TEST CONDITIONS
1. Spark plug
1.1. Make: ..............................................................................................................................................................
1.2. Type: ..............................................................................................................................................................
1.3. Spark-gap setting: ............................................................................................................................................
2. Ignition coil
2.1. Make: ..............................................................................................................................................................
2.2. Type: ..............................................................................................................................................................
3. Lubricant used
3.1. Make: ..............................................................................................................................................................
3.2. Type: (state percentage of oil in mixture if lubricant and fuel mixed): .................................................................
4. Dynamometer load setting information (repeat information for each dynamometer test)
4.1. Vehicle bodywork type (variant/version): ...........................................................................................................
4.2. Gearbox type (manual/automatic/CVT) (1)
4.3. Fixed load curve dynamometer setting information (if used): ..............................................................................
4.3.1. Alternative dynamometer load setting method used (yes/no (1))
4.3.2. Inertia mass (kg): .............................................................................................................................................
4.3.3. Effective power absorbed at 80 km/h including running losses of the vehicle on the dynamometer (kW): ............
4.3.4. Effective power absorbed at 50 km/h including running losses of the vehicle on the dynamometer (kW): ............
4.4. Adjustable load curve dynamometer setting information (if used): ......................................................................
4.4.1. Coast down information from the test track: .....................................................................................................
4.4.2. Tyres make and type: .......................................................................................................................................
4.4.3. Tyre dimensions (front/rear): ............................................................................................................................
4.4.4. Tyre pressure (front/rear) (kPa): .........................................................................................................................
4.4.5. Vehicle test mass including driver (kg): .............................................................................................................
4.4.6. Road coast down data (if used)
V (km/h) V (km/h) V (km/h) Mean corrected coast down time (s)
2 1
120
100
80
60
40
20
(1) Strike out what does not apply.L 45/66 EN Official Journal of the European Union 15.2.2019
4.4.7. Average corrected road power (if used)
V (km/h) Corrected power (kW)
120
100
80
60
40
2015.2.2019 EN Official Journal of the European Union L 45/67
ANNEX 2L 45/68 EN Official Journal of the European Union 15.2.201915.2.2019 EN Official Journal of the European Union L 45/69
Addendum to type approval communication No … concerning the type approval of a vehicle with
regard to exhaust emissions pursuant to Regulation No 83, 07 series of amendments
1. ADDITIONAL INFORMATION
1.1. Mass of the vehicle in running order: .............................................................................................................
1.2. Reference mass of the vehicle: .......................................................................................................................
1.3. Maximum mass of the vehicle: ......................................................................................................................
1.4. Number of seats (including the driver): ..........................................................................................................
1.6. Type of bodywork:
1.6.1. For M M : saloon/ hatchback/station wagon/coupé/convertible/multipurpose vehicle (1)
1, 2
1.6.2. For N , N : lorry, van (1)
1 2
1.7. Drive wheels: front, rear, 4 × 4 (1)
1.8. Pure electric vehicle: yes/no (1)
1.9. Hybrid electric vehicle: yes/no (1)
1.9.1. Category of Hybrid Electric vehicle: Off Vehicle Charging (OVC)/Not Off Vehicle Charging (NOVC) (1)
1.9.2. Operating mode switch: with/without (1)
1.10. Engine identification: ....................................................................................................................................
1.10.1. Engine displacement: ....................................................................................................................................
1.10.2. Fuel supply system: direct injection/indirect injection (1)
1.10.3. Fuel recommended by the manufacturer: ........................................................................................................
1.10.4. Maximum power: .......................................................... kW at .......................................................... min– 1
1.10.5. Pressure charging device: yes/no (1)
1.10.6. Ignition system: compression ignition/positive ignition (1)
1.11. Power train (for pure electric vehicle or hybrid electric vehicle) (1)
1.11.1. Maximum net power: .................................. kW, at: .................................. to ................................... min– 1
1.11.2. Maximum thirty minutes power: ............................................................................................................. kW
1.11.3. Maximum net torque: ...................................................... Nm, at ....................................................... min– 1
1.12. Traction battery (for pure electric vehicle or hybrid electric vehicle)
1.12.1. Nominal voltage: ....................................................................................................................................... V
1.12.2. Capacity (2 h rate): .................................................................................................................................. AhL 45/70 EN Official Journal of the European Union 15.2.2019
1.13. Transmission
1.13.1. Manual or automatic or continuously variable transmission (1) (2): ...................................................................
1.13.2. Number of gear ratios: ..................................................................................................................................
1.13.3. Total gear ratios (including the rolling circumferences of the tyres under load): road speeds per 1 000 min– 1
(km/h)
First gear: ................................................................. Sixth gear: .................................................................
Second gear: .............................................................. Seventh gear: .............................................................
Third gear: ............................................................... Eighth gear: ...............................................................
Fourth gear: ................................................................ Overdrive: ...............................................................
Fifth gear: .....................................................................................................................................................
1.13.4. Final drive ratio: ...........................................................................................................................................
1.14. Tyres: ...........................................................................................................................................................
1.14.1. Type: ............................................................................................................................................................
1.14.2. Dimensions: .................................................................................................................................................
1.14.3. Rolling circumference under load: ..................................................................................................................
1.14.4. Rolling circumference of tyres used for the Type I test
2. TEST RESULTS
2.1. Tailpipe emissions test results: .......................................................................................................................
Emissions classification: 07 series of amendments
Type approval number if not parent vehicle (3)
THC + Particu Particu
CO THC NMHC NO
Type I Result Test x NO lates lates
(mg/km) (mg/km) (mg/km) (mg/km) x
(mg/km) (mg/km) (#/km)
Measured(i)(ii) 1
2
3
Measured mean value
(M)(i)(ii)
K (i)(iii) (iv)
i
Mean value calculated (v)
with K (M.Ki)(ii)
i
DF(i)(iii)
Final mean value
calculated with K and DF
i
(M.K.DF)(vi)
i
Limit value
(i) Where applicable
(ii) Round to 2 decimal places
(iii) Round to 4 decimal places
(iv) Not applicable
(v) Mean value calculated by adding mean values (M.Ki) calculated for THC and NO
x
(vi) Round to 1 decimal place more than limit value15.2.2019 EN Official Journal of the European Union L 45/71
Position of the engine cooling fan during the test:
Height of the lower edge above ground: .................................................................................................... cm
Lateral position of fan centre: ................................................................................................................... cm
Right/left of vehicle centre-line (1) Information about regeneration strategy
D — Number of operating cycles between two (2) cycles where regenerative phases occur: .............................
d — Number of operating cycles required for regeneration: ...........................................................................
Type II: ........................................................................................................................................... per cent
Type III: .......................................................................................................................................................
Type IV: .............................................................................................................................................. g/test
Type V: ........................................................................................................................................................
Durability test type: whole vehicle test/bench ageing test/none (1)
— Deterioration Factor (DF): calculated/assigned (1)
— Specify the values (DF): ............................................................................................................................
Type VI:
Type VI CO (mg/km) THC (mg/km)
Measured value
2.1.1. For bi fuel vehicles, the type I table shall be repeated for both fuels. For flex fuel vehicles, when the type I test is
to be performed on both fuels according to Table A of this Regulation and for vehicles running on LPG or
NG/Biomethane, either mono fuel or bi fuel, the table shall be repeated for the different reference gases used in
the test, and an additional table shall display the worst results obtained. When applicable, in accordance with
paragraphs 3.1.4 and 3.1.5 of Annex 12 to this Regulation, it shall be shown if the results are measured or
calculated.
OBD test
2.1.2. Written description and/or drawing of the Malfunction Indicator (MI): ............................................................
2.1.3. List and function of all components monitored by the OBD system: ................................................................
2.1.4. Written description (general working principles) for: ......................................................................................
2.1.4.1. Misfire detection (4): ......................................................................................................................................
2.1.4.2. Catalyst monitoring (4): .................................................................................................................................
2.1.4.3. Oxygen sensor monitoring (4): .......................................................................................................................
2.1.4.4. Other components monitored by the OBD system (4): ....................................................................................
2.1.4.5. Catalyst monitoring (5): .................................................................................................................................
2.1.4.6. Particulate trap monitoring (5): ......................................................................................................................
2.1.4.7. Electronic fuelling system actuator monitoring (5): ..........................................................................................
2.1.4.8. Other components monitored by the OBD system: .........................................................................................
2.1.5. Criteria for MI activation (fixed number of driving cycles or statistical method): ...............................................
2.1.6. List of all OBD output codes and formats used (with explanation of each): ......................................................L 45/72 EN Official Journal of the European Union 15.2.2019
2.2. Emissions data required for roadworthiness testing
CO value Engine speed Engine oil temperature
Test Lambda(*)
(per cent vol.) (min– 1) (°C)
Low idle test N/A
High idle test
(*) Lambda formula: see paragraph 5.3.7.3 of this Regulation.
2.3. Catalytic converters: yes/no (1)
2.3.1. Original equipment catalytic converter tested to all relevant requirements of this Regulation yes/no (1)
2.4. Smoke opacity test results (1) (6)
2.4.1. At steady speeds: See technical service test report number: .............................................................................
2.4.2. Free acceleration tests
2.4.2.1. Measured value of the absorption coefficient: .......................................................................................... m– 1
2.4.2.2. Corrected value of the absorption coefficient: .......................................................................................... m– 1
2.4.2.3. Location of the absorption coefficient symbol on the vehicle: .........................................................................
3. Remarks: ......................................................................................................................................................
(1) Delete or strike out what does not apply (there are cases where nothing needs to be deleted when more than one entry is
applicable).
(2) In the case of vehicles equipped with automatic-shift gearboxes, give all pertinent technical data.
(3) If the means of identification of type contains characters not relevant to describe the vehicle, component or separate technical unit
types covered by this information document, such characters shall be represented in the documentation by the symbol ‘?’ (e.g.
ABC??123??).
(4) For compression-ignition engine vehicles.
(5) For vehicles equipped with positive-ignition engines.
(6) Smoke opacity measurements to be carried out according to provisions laid out in Regulation No 24.15.2.2019 EN Official Journal of the European Union L 45/73
APPENDIX 1
OBD-RELATED INFORMATION
As noted in item 3.2.12.2.7.6 of Annex 1 to this Regulation, the information in this appendix is provided by the vehicle
manufacturer for the purposes of enabling the manufacture of OBD-compatible replacement or service parts and
diagnostic tools and test equipment.
Upon request, the following information shall be made available to any interested component, diagnostic tools or test
equipment manufacturer, on a non-discriminatory basis.
1. A description of the type and number of the pre-conditioning cycles used for the original type approval of the
vehicle.
2. A description of the type of the OBD demonstration cycle used for the original type approval of the vehicle for the
component monitored by the OBD system.
3. A comprehensive document describing all sensed components with the strategy for fault detection and MI activation
(fixed number of driving cycles or statistical method), including a list of relevant secondary sensed parameters for
each component monitored by the OBD system and a list of all OBD output codes and format used (with an
explanation of each) associated with individual emission related power-train components and individual non-emission
related components, where monitoring of the component is used to determine MI activation. In particular, a compre
hensive explanation for the data given in service $05 Test ID $21 to FF and the data given in service $06 shall be
provided. In the case of vehicle types that use a communication link in accordance with the standard listed in
paragraph 6.5.3.1(a) of Annex 11, Appendix 1 of this Regulation, a comprehensive explanation for the data given in
service $06 Test ID $00 to FF, for each OBD monitor ID supported, shall be provided.
This information may be provided in the form of a table, as follows:
Fault Monitoring Fault detection MI activa Secondary para Pre-condi Demonstra
Component
code strategy criteria tion criteria meters tioning tion test
Catalyst P0420 Oxygen Difference 3rd cycle Engine speed, Two Type Type I
sensor 1 and 2 between engine load, I cycles
signals sensor 1 and A/F mode,
sensor 2 signals catalyst
temperatureL 45/74 EN Official Journal of the European Union 15.2.2019
APPENDIX 2
MANUFACTURER'S CERTIFICATE OF COMPLIANCE WITH THE OBD IN-USE PERFORMANCE
REQUIREMENTS
(Manufacturer):
(Address of the manufacturer):
Certifies that:
1. The vehicle types listed in attachment to this Certificate are in compliance with the provisions of paragraph 7 of
Appendix 1 to Annex 11 to this Regulation relating to the in-use performance of the OBD system under all
reasonably foreseeable driving conditions;
2. The plan(s) describing the detailed technical criteria for incrementing the numerator and denominator of each
monitor attached to this Certificate are correct and complete for all types of vehicles to which this Certificate applies.
Done at [................................................................................. Place]
On [........................................................................................ Date]
[Signature of the Manufacturer's Representative]
Annexes:
(a) List of vehicle types to which this Certificate applies;
(b) Plan(s) describing the detailed technical criteria for incrementing the numerator and denominator of each monitor, as
well as plan(s) for disabling numerators, denominators and general denominator.15.2.2019 EN Official Journal of the European Union L 45/75
ANNEX 3
ARRANGEMENTS OF THE APPROVAL MARK
In the approval mark issued and affixed to a vehicle in conformity with paragraph 4 of this Regulation, the type
approval number shall be accompanied by an alphabetical character assigned according to Table A3/1 of this annex,
reflecting the vehicle category and class that the approval is limited to.
This annex outlines the appearance of this mark, and gives an example how it shall be composed.
The following schematic graph presents the general lay-out, proportions and contents of the marking. The meaning of
numbers and alphabetical character are identified, and sources to determine the corresponding alternatives for each
approval case are also referred.
a = 8 mm (minimum)
(1) Number of country according to footnote in paragraph 4.4.1 of this Regulation.
(2) According to Table A3/1 of this annex.
The following graph is a practical example of how the marking should be composed.
The preceding approval mark affixed to a vehicle in conformity with paragraph 4 of this Regulation shows that the
vehicle type concerned has been approved in the United Kingdom (E 11), pursuant to Regulation No 83 under approval
number 2439. This mark indicates that the approval was given in accordance with the requirements of this Regulation
with the 07 series of amendments incorporated. Furthermore, the accompanying letter (X) denotes that the vehicle
belongs to vehicle category N Class II that meets the emission and OBD standards listed in Table A3/1.
1L 45/76 EN Official Journal of the European Union 15.2.2019
Table A3/1
Letters with reference to fuel, engine and vehicle category
Emission
Character Vehicle category and class Engine type OBD standard
standard
T M, N Class I CI A Interim OBD threshold limits (see
1
Table A11/3)
U N Class II CI A Interim OBD threshold limits (see
1
Table A11/3)
V N Class III, N CI A Interim OBD threshold limits (see
1 2
Table A11/3)
W M, N Class I. PI A Preliminary OBD threshold limits (see
1
Table A11/2)
CI
X N Class II PI A Preliminary OBD threshold limits (see
1
Table A11/2)
CI
Y N Class III, N PI A Preliminary OBD threshold limits (see
1 2
Table A11/2)
CI
ZA M, N Class I PI B Preliminary OBD threshold limits (see
1
Table A11/2)
CI
ZB N Class II PI B Preliminary OBD threshold limits (see
1
Table A11/2)
CI
ZC N Class III, N PI B Preliminary OBD threshold limits (see
1 2
Table A11/2)
CI
ZD M, N Class I PI B Final OBD threshold limits (see
1
Table A11/1)
CI
ZE N Class II PI B Final OBD threshold limits (see
1
Table A11/1)
CI
ZF N Class III, N PI B Final OBD threshold limits (see
1 2
Table A11/1)
CI
Emissions standard key
A Emission requirements according to the limits in Table 1 of paragraph 5.3.1.4 of this Regulation, but allowing the
preliminary values for particulate numbers for PI vehicles as detailed in footnote 2 to that table;
B Emission requirements according to the limits in Table 1 of paragraph 5.3.1.4 of this Regulation, including the final
particulate number standards for PI vehicles and use of E10 and B7 reference fuel (where applicable).15.2.2019 EN Official Journal of the European Union L 45/77
ANNEX 4A
TYPE I TEST
(Verifying exhaust emissions after a cold start)
1. APPLICABILITY
This annex effectively replaces former Annex 4 to this Regulation.
2. INTRODUCTION
This annex describes the procedure for the Type I test defined in paragraph 5.3.1 of this Regulation. When
the reference fuel to be used is LPG or NG/biomethane, the provisions of Annex 12 to this Regulation shall
apply additionally.
3. TEST CONDITIONS
3.1. Ambient conditions
3.1.1. During the test, the test cell temperature shall be between 293 K and 303 K (20 °C and 30 °C). The absolute
humidity (H) of either the air in the test cell or the intake air of the engine shall be such that:
5,5 ≤ H ≤ 12,2 (g H O/kg dry air)
2
The absolute humidity (H) shall be measured.
The following temperatures shall be measured:
Test cell ambient air
Dilution and sampling system temperatures as required for emissions measurement systems defined in
Appendices 2 to 5 to this annex.
The atmospheric pressure shall be measured.
3.2. Test vehicle
3.2.1. The vehicle shall be presented in good mechanical condition. It shall have been run-in and driven at least
3 000 km before the test.
3.2.2. The exhaust device shall not exhibit any leak likely to reduce the quantity of gas collected, which quantity
shall be that emerging from the engine.
3.2.3. The tightness of the intake system may be checked to ensure that carburation is not affected by an accidental
intake of air.
3.2.4. The settings of the engine and of the vehicle's controls shall be those prescribed by the manufacturer. This
requirement also applies, in particular, to the settings for idling (rotation speed and carbon monoxide content
of the exhaust gases), for the cold start device and for the exhaust gas cleaning system.
3.2.5. The vehicle to be tested, or an equivalent vehicle, shall be fitted, if necessary, with a device to permit the
measurement of the characteristic parameters necessary for chassis dynamometer setting, in conformity with
paragraph 5 of this annex.
3.2.6. The Technical Service responsible for the tests may verify that the vehicle's performance conforms to that
stated by the manufacturer, that it can be used for normal driving and, more particularly, that it is capable of
starting when cold and when hot.L 45/78 EN Official Journal of the European Union 15.2.2019
3.2.7. The daytime running lamps of the vehicle as defined in paragraph 2 of Regulation No 48 shall be switched
on during the test cycle. The vehicle tested shall be equipped with the daytime running lamp system that has
the highest electrical energy consumption among the daytime running lamp systems, which are fitted by the
manufacturer to vehicles in the group represented by the type-approved vehicle. The manufacturer shall
supply appropriate technical documentation to the type-approval authorities in this respect.
3.3. Test fuel
3.3.1. The appropriate reference fuel as defined in Annex 10 or Annex 10a to this Regulation shall be used for
testing.
3.3.2. Vehicles that are fuelled either with petrol or with LPG or NG/biomethane, shall be tested according to
Annex 12 to this Regulation with the appropriate reference fuel(s) as defined in Annex 10 or Annex 10a to
this Regulation.
3.4. Vehicle installation
3.4.1. The vehicle shall be approximately horizontal during the test so as to avoid any abnormal distribution of the
fuel.
3.4.2. A current of air of variable speed shall be blown over the vehicle. The blower speed shall be, within the
operating range of 10 km/h to at least the maximum speed of the test cycle being used. The linear velocity of
the air at the blower outlet shall be within ± 5 km/h of the corresponding roller speed within the range of
10 km/h to 50 km/h. At the range over 50 km/h, the linear velocity of the air shall be within ± 10 km/h of
the corresponding roller speed. At roller speeds of less than 10 km/h, air velocity may be zero.
The abovementioned air velocity shall be determined as an averaged value of a number of measuring points
which:
(a) For blowers with rectangular outlets are located at the centre of each rectangle dividing the whole of the
blower outlet into 9 areas (dividing both horizontal and vertical sides of the blower outlet into 3 equal
parts). The centre area shall not be measured (as shown in the diagram below).
(b) For circular blower outlets, the outlet shall be divided into 8 equal arcs by vertical, horizontal and 45°
lines. The measurement points lie on the radial centre line of each arc (22,5°) at a radius of two thirds of
the total (as shown in the diagram below).
These measurements shall be made with no vehicle or other obstruction in front of the fan.
The device used to measure the linear velocity of the air shall be located at between 0 and 20 cm from the
air outlet.15.2.2019 EN Official Journal of the European Union L 45/79
The final selection of the blower shall have the following characteristics:
(a) Area: at least 0,2 m2;
(b) Height of the lower edge above ground: approximately 0,2 m;
(c) Distance from the front of the vehicle: approximately 0,3 m.
The height and lateral position of the cooling fan may be modified at the request of the manufacturer and if
considered appropriate by the Type Approval authority.
In the cases described above, the cooling fan position and configuration shall be recorded in the approval test
report and shall be used for Conformity of Production (COP) and In-Service Conformity (ISC) testing.
4. TEST EQUIPMENT
4.1. Chassis dynamometer
The chassis dynamometer requirements are given in Appendix 1 to this annex.
4.2. Exhaust dilution system
The exhaust dilution system requirements are given in Appendix 2 to this annex.
4.3. Gaseous emissions sampling and analysis
The gaseous emissions sampling and analysis equipment requirements are given in Appendix 3 to this annex.
4.4. Particulate Mass (PM) emissions equipment
The particulate mass sampling and measurement requirements are given in Appendix 4 to this annex.
4.5. Particulate Number (PN) emissions equipment
The particulate number sampling and measurement requirements are given in Appendix 5 to this annex.
4.6. General test cell equipment
The following temperatures shall be measured with an accuracy of ± 1,5 K:
(a) Test cell ambient air;
(b) Intake air to the engine;
(c) Dilution and sampling system temperatures as required for emissions measurement systems defined in
Appendices 2 to 5 to this annex.
The atmospheric pressure shall be measurable to within ± 0,1 kPa.
The absolute humidity (H) shall be measurable to within ± 5 per cent.
5. DETERMINATION OF VEHICLE ROAD LOAD
5.1. Test procedure
The procedure for measuring the vehicle road load is described in Appendix 7 to this annex.
This procedure is not required if the chassis dynamometer load is to be set according to the reference mass of
the vehicle.
6. EMISSIONS TEST PROCEDURE
6.1. Test cycle
The operating cycle, made up of a Part One (urban cycle) and Part Two (extra-urban cycle), is illustrated in
Figure A4a/1. During the complete test the elementary urban cycle is run four times followed, by Part Two.L 45/80 EN Official Journal of the European Union 15.2.2019
6.1.1. Elementary urban cycle
Part One of the test cycle comprises 4 times the elementary urban cycle which is defined in Table A4a/1,
illustrated in Figure A4a/2, and summarized below.
Breakdown by phases:
Time (s) per cent
Idling 60 30,8 35,4
Deceleration, clutch disengaged 9 4,6
Gear-changing 8 4,1
Accelerations 36 18,5
Steady-speed periods 57 29,2
Decelerations 25 12,8
Total 195 100
Breakdown by use of gears:
Time (s) per cent
Idling 60 30,8 35,4
Deceleration, clutch disengaged 9 4,6
Gear-changing 8 4,1
First gear 24 12,3
Second gear 53 27,2
Third gear 41 21
Total 195 100
General information:
Average speed during test: 19 km/h
Effective running time: 195 s
Theoretical distance covered per cycle: 1 013 km
Equivalent distance for the four cycles: 4 052 km
6.1.2. Extra-urban cycle
Part Two of the test cycle is the extra-urban cycle which is defined in Table A4a/2, illustrated in Figure A4a/3,
and summarized below.15.2.2019 EN Official Journal of the European Union L 45/81
Breakdown by phases:
Time (s) per cent
Idling 20 5,0
Deceleration, clutch disengaged 20 5,0
Gear-shift 6 1,5
Accelerations 103 25,8
Steady-speed periods 209 52,2
Decelerations 42 10,5
Total 400 100
Breakdown by use of gears:
Time (s) per cent
Idling 20 5,0
Deceleration, clutch disengaged 20 5,0
Gear-shift 6 1,5
First gear 5 1,3
Second gear 9 2,2
Third gear 8 2
Fourth gear 99 24,8
Fifth gear 233 58,2
Total 400 100
General information:
Average speed during test: 62,6 km/h
Effective running time: 400 s
Theoretical distance covered per cycle: 6 955 km
Maximum speed: 120 km/h
Maximum acceleration: 0,833 m/s2
Maximum deceleration: – 1,389 m/s2
6.1.3. Use of the gearbox
6.1.3.1. If the maximum speed which can be attained in first gear is below 15 km/h, the second, third and fourth
gears shall be used for the urban cycle (Part One) and the second, third, fourth and fifth gears for the extra-
urban cycle (Part Two). The second, third and fourth gears may also be used for the urban cycle (Part One)
and the second, third, fourth and fifth gears for the extra-urban cycle (Part Two) when the manufacturer's
instructions recommend starting in second gear on level ground, or when first gear is therein defined as
a gear reserved for cross-country driving, crawling or towing.L 45/82 EN Official Journal of the European Union 15.2.2019
Vehicles which do not attain the acceleration and maximum speed values required in the operating cycle shall
be operated with the accelerator control fully depressed until they once again reach the required operating
curve. Deviations from the operating cycle shall be recorded in the test report.
Vehicles equipped with semi-automatic-shift gearboxes shall be tested by using the gears normally employed
for driving, and the gear shift is used in accordance with the manufacturer's instructions.
6.1.3.2. Vehicles equipped with automatic-shift gearboxes shall be tested with the highest gear (‘Drive’) engaged. The
accelerator shall be used in such a way as to obtain the steadiest acceleration possible, enabling the various
gears to be engaged in the normal order. Furthermore, the gear-change points shown in Tables A4a/1
and A4a/2 of this annex shall not apply; acceleration shall continue throughout the period represented by
the straight line connecting the end of each period of idling with the beginning of the next following period
of steady speed. The tolerances given in paragraphs 6.1.3.4 and 6.1.3.5 shall apply.
6.1.3.3. Vehicles equipped with an overdrive that the driver can actuate shall be tested with the overdrive out of
action for the urban cycle (Part One) and with the overdrive in action for the extra-urban cycle (Part Two).
6.1.3.4. A tolerance of ± 2 km/h shall be allowed between the indicated speed and the theoretical speed during
acceleration, during steady speed, and during deceleration when the vehicle's brakes are used. If the vehicle
decelerates more rapidly without the use of the brakes, only the provisions of paragraph 6.4.4.3 shall apply.
Speed tolerances greater than those prescribed shall be accepted during phase changes provided that the
tolerances are never exceeded for more than 0,5 s on any one occasion.
6.1.3.5. The time tolerances shall be ± 1,0 s. The above tolerances shall apply equally at the beginning and at the end
of each gear-changing period for the urban cycle (Part One) and for the operations Nos 3, 5 and 7 of the
extra-urban cycle (Part Two). It should be noted that the time of two seconds allowed includes the time for
changing gear and, if necessary, a certain amount of latitude to catch up with the cycle.
6.2. Test preparation
6.2.1. Load and inertia setting
6.2.1.1. Load determined with vehicle road test
The dynamometer shall be adjusted so that the total inertia of the rotating masses will simulate the inertia
and other road load forces acting on the vehicle when driving on the road. The means by which this load is
determined is described in paragraph 5 of this annex.
Dynamometer with fixed load curve: the load simulator shall be adjusted to absorb the power exerted on the
driving wheels at a steady speed of 80 km/h and the absorbed power at 50 km/h shall be noted.
Dynamometer with adjustable load curve: the load simulator shall be adjusted in order to absorb the power
exerted on the driving wheels at steady speeds of 120, 100, 80, 60 and 40 and 20 km/h.
6.2.1.2. Load determined by vehicle reference mass
With the manufacturer's agreement the following method may be used.
The brake is adjusted so as to absorb the load exerted at the driving wheels at a constant speed of 80 km/h,
in accordance with Table A4a/3.
If the corresponding equivalent inertia is not available on the dynamometer, the larger value closest to the
vehicle reference mass will be used.
In the case of vehicles other than passenger cars, with a reference mass of more than 1 700 kg or vehicles
with permanent all-wheel drive, the power values given in Table A4a/3 are multiplied by a factor 1,3.15.2.2019 EN Official Journal of the European Union L 45/83
6.2.1.3. The method used and the values obtained (equivalent inertia - characteristic adjustment parameter) shall be
recorded in the test report.
6.2.2. Preliminary testing cycles
Preliminary testing cycles should be carried out if necessary to determine how best to actuate the accelerator
and brake controls so as to achieve a cycle approximating to the theoretical cycle within the prescribed limits
under which the cycle is carried out.
6.2.3. Tyre pressures
The tyre pressures shall be the same as that specified by the manufacturer and used for the preliminary road
test for brake adjustment. The tyre pressure may be increased by up to 50 per cent from the manufacturer's
recommended setting in the case of a two-roller dynamometer. The actual pressure used shall be recorded in
the test report.
6.2.4. Background particulate mass measurement
The particulate background level of the dilution air may be determined by passing filtered dilution air
through the particulate filter. This shall be drawn from the same point as the particulate sample. One
measurement may be performed prior to or after the test. Particulate mass measurements may be corrected
by subtracting the background contribution from the dilution system. The permissible background
contribution shall be ≤ 1 mg/km (or equivalent mass on the filter). If the background exceeds this level, the
default figure of 1 mg/km (or equivalent mass on the filter) shall be employed. Where subtraction of the
background contribution gives a negative result, the particulate mass result shall be considered to be zero.
6.2.5. Background particulate number measurements
The subtraction of background particulate numbers may be determined by sampling dilution air drawn from
a point downstream of the particulate and hydrocarbon filters into the particulate number measurement
system. Background correction of particulate number measurements shall not be allowed for type approval,
but may be used at the manufacturer's request for conformity of production and in service conformity where
there are indications that tunnel contribution is significant.
6.2.6. Particulate mass filter selection
A single particulate filter without back-up shall be employed for both urban and extra-urban phases of the
cycle combined.
Twin particulate filters, one for the urban, one for the extra-urban phase, may be used without back-up
filters, only where the pressure-drop increase across the sample filter between the beginning and the end of
the emissions test is otherwise expected to exceed 25 kPa.
6.2.7. Particulate mass filter preparation
6.2.7.1. Particulate mass sampling filters shall be conditioned (as regards temperature and humidity) in an open dish
that has been protected against dust ingress for at least 2 and for not more than 80 hours before the test in
an air-conditioned chamber. After this conditioning, the uncontaminated filters will be weighed and stored
until they are used. If the filters are not used within one hour of their removal from the weighing chamber
they shall be re-weighed.
6.2.7.2. The one hour limit may be replaced by an eight-hour limit if one or both of the following conditions are
met:
6.2.7.2.1. A stabilized filter is placed and kept in a sealed filter holder assembly with the ends plugged; or
6.2.7.2.2. A stabilized filter is placed in a sealed filter holder assembly which is then immediately placed in a sample
line through which there is no flow.L 45/84 EN Official Journal of the European Union 15.2.2019
6.2.7.3. The particulate sampling system shall be started and prepared for sampling.
6.2.8. Particulate number measurement preparation
6.2.8.1. The particulate specific dilution system and measurement equipment shall be started and readied for
sampling.
6.2.8.2. Prior to the test(s) the correct function of the particulate counter and volatile particulate remover elements of
the particulate sampling system shall be confirmed according to paragraphs 2.3.1 and 2.3.3 of Appendix 5
to this annex.
The particulate counter response shall be tested at near zero prior to each test and, on a daily basis, at high
particulate concentrations using ambient air.
When the inlet is equipped with a High Efficiency Particulate Air (HEPA) filter, it shall be demonstrated that
the entire particulate sampling system is free from any leaks.
6.2.9. Checking the gas analysers
The emissions analysers for the gases shall be set at zero and spanned. The sample bags shall be evacuated.
6.3. Conditioning procedure
6.3.1. For the purpose of measuring particulates, at most 36 hours and at least 6 hours before testing, the Part Two
cycle described in paragraph 6.1 of this annex shall be used for vehicle pre-conditioning. Three consecutive
cycles shall be driven. The dynamometer setting shall be indicated as in paragraph 6.2.1 of this annex.
At the request of the manufacturer, vehicles fitted with indirect injection positive ignition engines may be
preconditioned with one Part One and two Part Two driving cycles.
6.3.2. In a test facility in which there may be possible contamination of a low particulate emitting vehicle test with
residue from a previous test on a high particulate emitting vehicle, it is recommended, for the purpose of
sampling equipment pre-conditioning, that a 120 km/h steady state drive cycle of 20 minutes duration
followed by three consecutive Part Two cycles be driven by a low particulate emitting vehicle.
After this preconditioning, and before testing, vehicles shall be kept in a room in which the temperature
remains relatively constant between 293 and 303 K (20 °C and 30 °C). This conditioning shall be carried out
for at least six hours and continue until the engine oil temperature and coolant, if any, are within ± 2 K of
the temperature of the room.
If the manufacturer so requests, the test shall be carried out not later than 30 hours after the vehicle has
been run at its normal temperature.
6.3.3. For positive ignition engined vehicles fuelled with LPG or NG/biomethane or so equipped that they can be
fuelled with either petrol or LPG or NG/biomethane, between the tests on the first gaseous reference fuel and
the second gaseous reference fuel, the vehicle shall be preconditioned before the test on the second reference
fuel. This preconditioning is done on the second reference fuel by driving a preconditioning cycle consisting
of one Part One (urban part) and two times Part Two (extra-urban part) of the test cycle described in
paragraph 6.1 of this annex. On the manufacturer's request and with the agreement of the Technical Service
this preconditioning may be extended. The dynamometer setting shall be the one indicated in paragraph 6.2
of this annex.
6.4. Test procedure
6.4.1. Starting up the engine
6.4.1.1. The engine shall be started up by means of the devices provided for this purpose according to the manufac
turer's instructions, as incorporated in the drivers' handbook of production vehicles.15.2.2019 EN Official Journal of the European Union L 45/85
6.4.1.2. The first cycle starts on the initiation of the engine start-up procedure.
6.4.1.3. In cases where LPG or NG/biomethane is used as a fuel it is permissible that the engine is started on petrol
and switched to LPG or NG/biomethane after a predetermined period of time which cannot be changed by
the driver. This period of time shall not exceed 60 seconds.
6.4.2. Idling
6.4.2.1. Manual-shift or semi-automatic gearbox, see Tables A4a/1 and A4a/2 of this annex.
6.4.2.2. Automatic-shift gearbox
After initial engagement the selector shall not be operated at any time during the test except in the case
specified in paragraph 6.4.3.3 of this annex or if the selector can actuate the overdrive, if any.
6.4.3. Accelerations
6.4.3.1. Accelerations shall be so performed that the rate of acceleration is as constant as possible throughout the
operation.
6.4.3.2. If an acceleration cannot be carried out in the prescribed time, the extra time required shall be deducted from
the time allowed for changing gear, if possible, but otherwise from the subsequent steady-speed period.
6.4.3.3. Automatic-shift gearboxes
If acceleration cannot be carried out in the prescribed time, the gear selector shall operate in accordance with
requirements for manual-shift gearboxes.
6.4.4. Decelerations
6.4.4.1. All decelerations of the elementary urban cycle (Part One) shall be effected by removing the foot completely
from the accelerator with the clutch remaining engaged. The clutch shall be disengaged, without use of the
gear lever, at the higher of the following speeds: 10 km/h or the speed corresponding to the engine idle
speed.
All decelerations of the extra-urban cycle (Part Two) shall be effected by removing the foot completely from
the accelerator, the clutch remaining engaged. The clutch shall be disengaged, without use of the gear lever, at
a speed of 50 km/h for the last deceleration.
6.4.4.2. If the period of deceleration is longer than that prescribed for the corresponding phase, the vehicle's brakes
shall be used to enable compliance with the timing of the cycle.
6.4.4.3. If the period of deceleration is shorter than that prescribed for the corresponding phase, the timing of the
theoretical cycle shall be restored by constant speed or an idling period merging into the following operation.
6.4.4.4. At the end of the deceleration period (halt of the vehicle on the rollers) of the elementary urban cycle (Part
One), the gears shall be placed in neutral and the clutch engaged.
6.4.5. Steady speeds
6.4.5.1. ‘Pumping’ or the closing of the throttle shall be avoided when passing from acceleration to the following
steady speed.
6.4.5.2. Periods of constant speed shall be achieved by keeping the accelerator position fixed.
6.4.6. Sampling
Sampling shall begin (BS) before or at the initiation of the engine start up procedure and end on conclusion
of the final idling period in the extra-urban cycle (Part Two, end of sampling (ES)) or, in the case of the
Type VI test, on conclusion of the final idling period of the last elementary urban cycle (Part One).L 45/86 EN Official Journal of the European Union 15.2.2019
6.4.7. During the test the speed is recorded against time or collected by the data-acquisition system so that the
correctness of the cycles performed can be assessed.
6.4.8. Particulates shall be measured continuously in the particulate sampling system. The average concentrations
shall be determined by integrating the analyser signals over the test cycle.
6.5. Post-test procedures
6.5.1. Gas analyser check
Zero and span gas reading of the analysers used for continuous measurement shall be checked. The test shall
be considered acceptable if the difference between the pre-test and post-test results is less than 2 per cent of
the span gas value.
6.5.2. Particulate filter weighing
Reference filters shall be weighed within 8 hours of the test filter weighing. The contaminated particulate test
filter shall be taken to the weighing chamber within one hour following the analyses of the exhaust
gases. The test filter shall be conditioned for at least 2 hours and not more than 80 hours and then weighed.
6.5.3. Bag analysis
6.5.3.1. The exhaust gases contained in the bag shall be analysed as soon as possible and in any event not later than
20 minutes after the end of the test cycle.
6.5.3.2. Prior to each sample analysis, the analyser range to be used for each pollutant shall be set to zero with the
appropriate zero gas.
6.5.3.3. The analysers shall then be set to the calibration curves by means of span gases of nominal concentrations of
70 to 100 per cent of the range.
6.5.3.4. The analysers' zero settings shall then be rechecked: if any reading differs by more than 2 per cent of the
range from that set in paragraph 6.5.3.2 of this annex, the procedure shall be repeated for that analyser.
6.5.3.5. The samples shall then be analysed.
6.5.3.6. After the analysis, zero and span points shall be rechecked using the same gases. If these rechecks are within
± 2 per cent of those in paragraph 6.5.3.3 of this annex, the analysis shall be considered acceptable.
6.5.3.7. At all points in this paragraph, the flow-rates and pressures of the various gases shall be the same as those
used during calibration of the analysers.
6.5.3.8. The figure adopted for the content of the gases in each of the pollutants measured shall be that read off after
stabilisation of the measuring device. Hydrocarbon mass emissions of compression-ignition engines shall be
calculated from the integrated Heated Flame Ionisation Detector (HFID) reading, corrected for varying flow if
necessary, as shown in paragraph 6.6.6 of this annex.
6.6. Calculation of emissions
6.6.1. Determination of volume
6.6.1.1. Calculation of the volume when a variable dilution device with constant flow control by orifice or venturi is
used.
Record continuously the parameters showing the volumetric flow, and calculate the total volume for the
duration of the test.15.2.2019 EN Official Journal of the European Union L 45/87
6.6.1.2. Calculation of volume when a positive displacement pump is used
The volume of diluted exhaust gas measured in systems comprising a positive displacement pump is
calculated with the following formula:
V = V · N
o
Where:
V = volume of the diluted gas expressed in litres per test (prior to correction),
V = volume of gas delivered by the positive displacement pump in testing conditions in litres per
o
revolution,
N = number of revolutions per test.
6.6.1.3. Correction of volume to standard conditions
The diluted exhaust-gas volume is corrected by means of the following formula:
!
P − P
V ¼V�K � B 1 (1)
mix 1 T
p
Where:
273,2ðKÞ
K ¼ ¼2,6961 (2)
1 101,33ðkPaÞ
P = barometric pressure in the test room in kPa,
B
P = vacuum at the inlet to the positive displacement pump in kPa relative to the ambient barometric
1
pressure,
T = average temperature of the diluted exhaust gas entering the positive displacement pump during the
p
test (K).
6.6.2. Total mass of gaseous and particulate pollutants emitted
The mass M of each pollutant emitted by the vehicle during the test shall be determined by obtaining the
product of the volumetric concentration and the volume of the gas in question, with due regard for the
following densities under abovementioned reference conditions:
In the case of carbon monoxide (CO): d = 1,25 g/l
In the case of hydrocarbons:
For petrol (E5) (C H O ) d = 0,631 g/1
1 1,89 0,016
For petrol (E10) (C H O ) d = 0,645 g/1
1 1, 93 0,033
For diesel (B5) (C H O ) d = 0,622 g/1
1 l,86 0,005
For diesel (B7) (C H O ) d = 0,623 g/1
1 l,86 0,007
For LPG (CH ) d = 0,649 g/l
2,525
For NG/biomethane (C H ) d = 0,714 g/l
1 4L 45/88 EN Official Journal of the European Union 15.2.2019
For ethanol (E85) (C H O ) d = 0,932 g/l
1 2,74 0,385
For ethanol (E75) (C H O ) d = 0,886 g/l
1 2,61 0,329
In the case of nitrogen oxides (NO): d = 2,05 g/1
x
6.6.3. Mass emissions of gaseous pollutants shall be calculated by means of the following formula:
V �Q �k �C �10 − 6
M ¼ mix i h i (3)
i d
Where:
M = mass emission of the pollutant i in grams per kilometre,
i
V = volume of the diluted exhaust gas expressed in litres per test and corrected to standard conditions
mix
(273,2 K and 101,33 kPa),
Q = density of the pollutant i in grams per litre at normal temperature and pressure (273,2 K and
i
101,33 kPa),
k = humidity correction factor used for the calculation of the mass emissions of oxides of nitrogen.
h
There is no humidity correction for HC and CO,
C = concentration of the pollutant i in the diluted exhaust gas expressed in ppm and corrected by the
i
amount of the pollutant i contained in the dilution air,
d = distance corresponding to the operating cycle in kilometres.
6.6.4. Correction for dilution air concentration
The concentration of pollutant in the diluted exhaust gas shall be corrected by the amount of the pollutant in
the dilution air as follows:
� �
1
C ¼C − C � 1 − (4)
i e d DF
Where:
C = concentration of the pollutant i in the diluted exhaust gas, expressed in ppm and corrected by the
i
amount of i contained in the dilution air,
C = measured concentration of pollutant i in the diluted exhaust gas, expressed in ppm,
e
C = concentration of pollutant i in the air used for dilution, expressed in ppm,
d
DF = dilution factor.
The dilution factor is calculated as follows:
For each reference fuel, except hydrogen
X
DF¼
C þðC þC Þ�10 − 4
CO2 HC CO15.2.2019 EN Official Journal of the European Union L 45/89
For a fuel of composition CxHyOz, the general formula is:
X¼100 x� �
xþyþ3,76� xþy − z
2 4 2
The dilution factors for the reference fuels covered by this Regulation are provided below:
13,4
DF¼ for petrol (E5) (5a)
C þðC þC Þ�10 − 4
CO2 HC CO
13,4
DF¼ for petrol (E10) (5b)
C þðC þC Þ�10 − 4
CO2 HC CO
13,5
DF¼ for diesel (B5) (5c)
C þðC þC Þ�10 − 4
CO2 HC CO
13,5
DF¼ for diesel (B7) (5d)
C þðC þC Þ�10 − 4
CO2 HC CO
11,9
DF¼ for LPG (5e)
C þðC þC Þ�10 − 4
CO2 HC CO
9,5
DF¼ for NG/biomethane (5f)
C þðC þC Þ�10 − 4
CO2 HC CO
12,5
DF¼ for ethanol (E85) (5g)
C þðC þC Þ�10 − 4
CO2 HC CO
12,7
DF¼ for ethanol (E75) (5h)
C þðC þC Þ�10 − 4
CO2 HC CO
35,03
DF¼ for hydrogen (5i)
C − C þC �10 − 4
H2O H2O − DA H2
In these equations:
C = concentration of CO in the diluted exhaust gas contained in the sampling bag, expressed in
CO2 2
per cent volume,
C = concentration of HC in the diluted exhaust gas contained in the sampling bag, expressed in
HC
ppm carbon equivalent,
C = concentration of CO in the diluted exhaust gas contained in the sampling bag, expressed in
CO
ppm,
C = concentration of H O in the diluted exhaust gas contained in the sampling bag, expressed in
H2O 2
per cent volume,
C = concentration of H O in the air used for dilution, expressed in per cent volume,
H2O-DA 2
C = concentration of hydrogen in the diluted exhaust gas contained in the sampling bag,
H2
expressed in ppm.
Non-methane hydrocarbon concentration is calculated as follows:
C = C – (Rf · C )
NMHC THC CH4 CH4
Where:
C = corrected concentration of NMHC in the diluted exhaust gas, expressed in ppm carbon
NMHC
equivalent,
C = concentration of THC in the diluted exhaust gas, expressed in ppm carbon equivalent and
THC
corrected by the amount of THC contained in the dilution air,L 45/90 EN Official Journal of the European Union 15.2.2019
C = concentration of CH in the diluted exhaust gas, expressed in ppm carbon equivalent and
CH4 4
corrected by the amount of CH contained in the dilution air,
4
Rf = is the FID response factor to methane as defined in paragraph 2.3.3 of Appendix 3 to this
CH4
annex.
6.6.5. Calculation of the NO humidity correction factor
In order to correct the influence of humidity on the results of oxides of nitrogen, the following calculations
are applied:
1
k h ¼ 1 − 0,0329�ðH − 10,71Þ (6)
In which:
6,211�R �P
H¼ a d
P − P �R �10 − 2
B d a
Where:
H = absolute humidity expressed in grams of water per kilogram of dry air,
R = relative humidity of the ambient air expressed as a percentage,
a
P = saturation vapour pressure at ambient temperature expressed in kPa,
d
P = atmospheric pressure in the room, expressed in kPa.
B
6.6.6. Determination of HC for compression-ignition engines
To calculate HC-mass emission for compression-ignition engines, the average HC concentration is calculated
as follows:
Rt2
C �dt
HC (7)
C
¼t1
e t − t
2 1
Where:
Zt2
C �dt = integral of the recording of the heated FID over the test (t2-t1)
HC
t1
C = concentration of HC measured in the diluted exhaust in ppm of Ci is substituted for C in
e HC
all relevant equations.
6.6.7. Determination of particulates
Particulate emission Mp (g/km) is calculated by means of the following equation:
ðV þV Þ�P
M ¼ mix ep e
p V �d
ep
Where exhaust gases are vented outside tunnel;
V �P
M ¼ mix e
p V �d
ep
Where exhaust gases are returned to the tunnel;15.2.2019 EN Official Journal of the European Union L 45/91
Where:
V = volume of diluted exhaust gases (see paragraph 6.6.1 of this annex), under standard conditions,
mix
V = volume of exhaust gas flowing through particulate filter under standard conditions,
ep
P = particulate mass collected by filter(s),
e
d = distance corresponding to the operating cycle in km,
M = particulate emission in g/km.
p
Where correction for the particulate background level from the dilution system has been used, this shall be
determined in accordance with paragraph 6.2.4 of this annex. In this case, the particulate mass (g/km) shall
be calculated as follows:
" � �!#
M ¼
P
e −
P
a � 1 −
1 �ðV mixþV epÞ
p V V DF d
ep ap
Where exhaust gases are vented outside tunnel;
" � �!#
P P 1 V
M ¼ e − a � 1 − � mix
p V V DF d
ep ap
Where exhaust gases are returned to the tunnel.
Where:
V = volume of tunnel air flowing through the background particulate filter under standard conditions,
ap
P = particulate mass collected by background filter,
a
DF = dilution factor as determined in paragraph 6.6.4 of this annex.
Where application of a background correction results in a negative particulate mass (in g/km) the result shall
be considered to be zero g/km particulate mass.
6.6.8. Determination of particulate numbers
Number emission of particulates shall be calculated by means of the following equation:
V�k�C �f �103
N¼ s r
d
Where:
N = particulate number emission expressed in particulates per kilometre,
V = volume of the diluted exhaust gas expressed in litres per test and corrected to standard conditions
(273,2 K and 101,33 kPa),
K = calibration factor to correct the particulate number counter measurements to the level of the reference
instrument where this is not applied internally within the particulate number counter. Where the
calibration factor is applied internally within the particulate number counter a value of 1 shall be used
for k in the above equation,L 45/92 EN Official Journal of the European Union 15.2.2019
C = corrected concentration of particulates from the diluted exhaust gas expressed as the average
s
particulates per cubic centimetre figure from the emissions test including the full duration of the drive
cycle. If the volumetric mean concentration results (C) from the particulate number counter are not
output at standard conditions (273,2 K and 101,33 kPa), then the concentrations should be corrected
to those conditions (C),
s
f = mean particulate concentration reduction factor of the volatile particulate remover at the dilution
r
setting used for the test,
d = distance corresponding to the operating cycle expressed in kilometres,
C = shall be calculated from the following equation:
iP ¼ n
C
i
C¼i ¼ 1
n
Where:
C = a discrete measurement of particulate concentration in the diluted gas exhaust from the particulate
i
counter expressed in particulates per cubic centimetre and corrected for coincidence,
n = total number of discrete particulate concentration measurements made during the operating cycle,
n shall be calculated from the following equation:
n = T · f
Where:
T = time duration of the operating cycle expressed in seconds,
f = data logging frequency of the particulate counter expressed in Hz.
6.6.9. Allowance for mass emissions from vehicles equipped with periodically regenerating devices
When the vehicle is equipped with a periodically regenerating system as defined in Annex 13 to this
Regulation:
6.6.9.1. The provisions of Annex 13 to this Regulation shall apply for the purposes of particulate mass
measurements only and not particulate number measurements.
6.6.9.2. For particulate mass sampling during a test in which the vehicle undergoes a scheduled regeneration, the
filter face temperature shall not exceed 192 °C.
6.6.9.3. For particulate mass sampling during a test when the regenerating device is in a stabilized loading condition
(i.e. the vehicle is not undergoing a regeneration), it is recommended that the vehicle has completed > 1/3 of
the mileage between scheduled regenerations or that the periodically regenerating device has undergone
equivalent loading off the vehicle.
For the purposes of conformity of production testing, the manufacturer may ensure that this is included
within the evolution coefficient. In this case, paragraph 8.2.3.2 of this Regulation is replaced by
paragraph 6.6.9.3.1 of this annex.15.2.2019 EN Official Journal of the European Union L 45/93
6.6.9.3.1. If the manufacturer wishes to run in the vehicles, (‘x’ km, where x ≤ 3 000 km for vehicles equipped with
a positive ignition engine and x ≤ 15 000 km for vehicles equipped with a compression ignition engine and
where the vehicle is at > 1/3 distance between successive regenerations), the procedure will be as follows:
(a) The pollutant emissions (type I) will be measured at zero and at ‘x’ km on the first tested vehicle;
(b) The evolution coefficient of the emissions between zero and ‘x’ km will be calculated for each of the
pollutants:
Emissions at ‘x’ km
Evolution coefficient t¼
Emissions at zero km
This may be less than 1,
(a) The other vehicles will not be run in, but their zero km emissions will be multiplied by the evolution
coefficient.
In this case, the values to be taken will be:
(a) The values at ‘x’ km for the first vehicle;
(b) The values at zero km multiplied by the evolution coefficient for the other vehicles.Table A4a/1
Elementary urban operating cycle on the chassis dynamometer (Part One)
Duration of each
Acceleration Cumulative Gear to be used in the case of
Operation Phase Speed (km/h)
(m/s2) time (s) a manual gearbox
Operation (s) Phase(s)
1 Idling 1 0 0 11 11 11 6 s PM + 5 s K (1)
1
2 Acceleration 2 1,04 0-15 4 4 15 1
3 Steady speed 3 0 15 9 8 23 1
4 Deceleration 4 – 0,69 15-10 2 5 25 1
5 Deceleration, clutch disengaged – 0,92 10-0 3 28 K (1)
1
6 Idling 5 0 0 21 21 49 16 s PM + 5 s K (1)
1
7 Acceleration 6 0,83 0-15 5 12 54 1
8 Gear change 15 2 56
9 Acceleration 0,94 15-32 5 61 2
10 Steady speed 7 0 32 24 24 85 2
11 Deceleration 8 – 0,75 32-10 8 11 93 2
12 Deceleration, clutch disengaged – 0,92 10-0 3 96 K (1)
2
13 Idling 9 0 0 21 117 16 s PM + 5 s K (1)
1
14 Acceleration 10 0,83 0-15 5 26 122 1
15 Gear change 15 2 124
16 Acceleration 0,62 15-35 9 133 2
17 Gear change 35 2 135
18 Acceleration 0,52 35-50 8 143 3
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15.2.2019Duration of each
Acceleration Cumulative Gear to be used in the case of
Operation Phase Speed (km/h)
(m/s2) time (s) a manual gearbox
Operation (s) Phase(s)
19 Steady speed 11 0 50 12 12 155 3
20 Deceleration 12 – 0,52 50-35 8 8 163 3
21 Steady speed 13 0 35 13 13 176 3
22 Gear change 14 35 2 12 178
23 Deceleration – 0,99 35-10 7 185 2
24 Deceleration clutch disengaged – 0,92 10-0 3 188 K (1)
2
25 Idling 15 0 0 7 7 195 7 s PM(1)
(1) PM = gearbox in neutral, clutch engaged. K, K = first or second gear engaged, clutch disengaged.
1 2
Table A4a/2
Extra-urban cycle (Part Two) for the Type I test
Duration of each
No of Acceleration Cumulative Gear to be used in the case of Operation Phase Speed (km/h)
operation (m/s2) time (s) a manual gearbox
Operation (s) Phase (s)
1 Idling 1 0 0 20 20 20 K (1)
1
2 Acceleration 2 0,83 0-15 5 41 25 1
3 Gear change 15 2 27 —
4 Acceleration 0,62 15-35 9 36 2
5 Gear change 35 2 38 —
6 Acceleration 0,52 35-50 8 46 3
7 Gear change 50 2 48 —
8 Acceleration 0,43 50-70 13 61 4
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45/95Duration of each No of Acceleration Cumulative Gear to be used in the case of
Operation Phase Speed (km/h)
operation (m/s2) time (s) a manual gearbox
Operation (s) Phase (s)
9 Steady speed 3 0 70 50 50 111 5
10 Deceleration 4 – 0,69 70-50 8 8 119 4 s,5 + 4 s,4
11 Steady speed 5 0 50 69 69 188 4
12 Acceleration 6 0,43 50-70 13 13 201 4
13 Steady speed 7 0 70 50 50 251 5
14 Acceleration 8 0,24 70-100 35 35 286 5
15 Steady speed(2) 9 0 100 30 30 316 5(2)
16 Acceleration(2) 10 0,28 100-120 20 20 336 5(2)
17 Steady speed(2) 11 0 120 10 20 346 5(2)
18 Deceleration(2) 12 – 0,69 120-80 16 34 362 5(2)
19 Deceleration(2) – 1,04 80-50 8 370 5(2)
20 Deceleration, clutch disengaged 1,39 50-0 10 380 K (1)
5
21 Idle 13 0 0 20 20 400 PM(1)
(1) PM = gearbox in neutral, clutch engaged. K, K = first or second gear engaged, clutch disengaged
1 5
(2) Additional gears can be used according to manufacturer recommendations if the vehicle is equipped with a transmission with more than five gears.
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15.2.201915.2.2019 EN Official Journal of the European Union L 45/97
Table A4a/3
Simulated inertia and dynamometer loading requirements
Equivalent Power and load absorbed by the
Reference mass of vehicle RW (kg) Road load coefficients
inertia dynamometer at 80 km/h
kg kW N a (N) b (N/(km/h)2
RW ≤ 480 455 3,8 171 3,8 0,0261
480 < RW ≤ 540 510 4,1 185 4,2 0,0282
540 < RW ≤ 595 570 4,3 194 4,4 0,0296
595 < RW ≤ 650 625 4,5 203 4,6 0,0309
650 < RW ≤ 710 680 4,7 212 4,8 0,0323
710 < RW ≤ 765 740 4,9 221 5,0 0,0337
765 < RW ≤ 850 800 5,1 230 5,2 0,0351
850 < RW ≤ 965 910 5,6 252 5,7 0,0385
965 < RW ≤ 1 080 1 020 6,0 270 6,1 0,0412
1 080 < RW ≤ 1 190 1 130 6,3 284 6,4 0,0433
1 190 < RW ≤ 1 305 1 250 6,7 302 6,8 0,0460
1 305 < RW ≤ 1 420 1 360 7,0 315 7,1 0,0481
1 420 < RW ≤ 1 530 1 470 7,3 329 7,4 0,0502
1 530 < RW ≤ 1 640 1 590 7,5 338 7,6 0,0515
1 640 < RW ≤ 1 760 1 700 7,8 351 7,9 0,0536
1 760 < RW ≤ 1 870 1 810 8,1 365 8,2 0,0557
1 870 < RW ≤ 1 980 1 930 8,4 378 8,5 0,0577
1 980 < RW ≤ 2 100 2 040 8,6 387 8,7 0,0591
2 100 < RW ≤ 2 210 2 150 8,8 396 8,9 0,0605
2 210 < RW ≤ 2 380 2 270 9,0 405 9,1 0,0619
2 380 < RW ≤ 2 610 2 270 9,4 423 9,5 0,0646
2 610 < RW 2 270 9,8 441 9,9 0,0674L 45/98 EN Official Journal of the European Union 15.2.2019
Figure A4a/1
Operating cycle for the Type I testFigure A4a/2
Elementary urban cycle for the Type I test
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45/99L 45/100 EN Official Journal of the European Union 15.2.2019
Figure A4a/3
Extra-urban cycle (Part Two) for the Type I test15.2.2019 EN Official Journal of the European Union L 45/101
Appendix 1
Chassis dynamometer system
1. SPECIFICATION
1.1. General requirements
1.1.1. The dynamometer shall be capable of simulating road load within one of the following classifications:
(a) Dynamometer with fixed load curve, i.e. a dynamometer whose physical characteristics provide a fixed load
curve shape;
(b) Dynamometer with adjustable load curve, i.e. a dynamometer with at least two road load parameters that
can be adjusted to shape the load curve.
1.1.2. Dynamometers with electric inertia simulation shall be demonstrated to be equivalent to mechanical inertia
systems. The means by which equivalence is established are described in Appendix 6 to this annex.
1.1.3. In the event that the total resistance to progress on the road cannot be reproduced on the chassis
dynamometer between speeds of 10 km/h and 120 km/h, it is recommended that a chassis dynamometer
having the characteristics defined below should be used.
1.1.3.1. The load absorbed by the brake and the chassis dynamometer internal frictional effects between the speeds of 0
and 120 km/h is as follows:
F = (a + b · V2) ± 0,1 · F (without being negative)
80
Where:
F = total load absorbed by the chassis dynamometer (N),
a = value equivalent to rolling resistance (N),
b = value equivalent to coefficient of air resistance (N/(km/h)2),
V = speed (km/h),
F = load at 80 km/h (N).
80
1.2. Specific requirements
1.2.1. The setting of the dynamometer shall not be affected by the lapse of time. It shall not produce any vibrations
perceptible to the vehicle and likely to impair the vehicle's normal operations.
1.2.2. The chassis dynamometer may have one or two rollers. The front roller shall drive, directly or indirectly, the
inertial masses and the power absorption device.
1.2.3. It shall be possible to measure and read the indicated load to an accuracy of ± 5 per cent.
1.2.4. In the case of a dynamometer with a fixed load curve, the accuracy of the load setting at 80 km/h shall be
± 5 per cent. In the case of a dynamometer with adjustable load curve, the accuracy of matching dynamometer
load to road load shall be ± 5 per cent at 120, 100, 80, 60, and 40 km/h and ± 10 per cent at 20 km/h. Below
this, dynamometer absorption shall be positive.
1.2.5. The total inertia of the rotating parts (including the simulated inertia where applicable) shall be known and
shall be within ± 20 kg of the inertia class for the test.
1.2.6. The speed of the vehicle shall be measured by the speed of rotation of the roller (the front roller in the case of
a two-roller dynamometer). It shall be measured with an accuracy of ± 1 km/h at speeds above 10 km/h.
The distance actually driven by the vehicle shall be measured by the movement of rotation of the roller (the
front roller in the case of a two-roller dynamometer).L 45/102 EN Official Journal of the European Union 15.2.2019
2. DYNAMOMETER CALIBRATION PROCEDURE
2.1. Introduction
This paragraph describes the method to be used to determine the load absorbed by a dynamometer brake. The
load absorbed comprises the load absorbed by frictional effects and the load absorbed by the power-absorption
device.
The dynamometer is brought into operation beyond the range of test speeds. The device used for starting up
the dynamometer is then disconnected: the rotational speed of the driven roller decreases.
The kinetic energy of the rollers is dissipated by the power-absorption unit and by the frictional effects. This
method disregards variations in the roller's internal frictional effects caused by rollers with or without the
vehicle. The frictional effects of the rear roller shall be disregarded when the roller is free.
2.2. Calibration of the load indicator at 80 km/h
The following procedure shall be used for calibration of the load indicator to 80 km/h as a function of the load
absorbed (see also Figure A4a.App1/4):
2.2.1. Measure the rotational speed of the roller if this has not already been done. A fifth wheel, a revolution counter
or some other method may be used.
2.2.2. Place the vehicle on the dynamometer or devise some other method of starting up the dynamometer.
2.2.3. Use the flywheel or any other system of inertia simulation for the particular inertia class to be used.
Figure A4a.App1/4
Diagram illustrating the power absorbed by the chassis dynamometer
Legend:
= F = a + b · V2 • = (a + b · V2) – 0,1 · F Δ = (a + b · V2) + 0,1 · F
80 8015.2.2019 EN Official Journal of the European Union L 45/103
2.2.4. Bring the dynamometer to a speed of 80 km/h.
2.2.5. Note the load indicated F (N).
i
2.2.6. Bring the dynamometer to a speed of 90 km/h.
2.2.7. Disconnect the device used to start-up the dynamometer.
2.2.8. Note the time taken by the dynamometer to pass from a speed of 85 km/h to a speed of 75 km/h.
2.2.9. Set the power-absorption device at a different level.
2.2.10. The requirements of paragraphs 2.2.4 to 2.2.9 of this appendix shall be repeated sufficiently often to cover the
range of loads used.
2.2.11. Calculate the load absorbed using the formula:
M �ΔV
F¼ i
t
Where:
F = load absorbed (N),
M = equivalent inertia in kg (excluding the inertial effects of the free rear roller),
i
Δ V = speed deviation in m/s (10 km/h = 2,775 m/s),
t = time taken by the roller to pass from 85 km/h to 75 km/h.
2.2.12. Figure A4a.App1/5 shows the load indicated at 80 km/h in terms of load absorbed at 80 km/h.
Figure A4a.App1/5
Load indicated at 80 km/h in terms of load absorbed at 80 km/h
2.2.13. The requirements of paragraphs 2.2.3 to 2.2.12 of this appendix shall be repeated for all inertia classes to be
used.L 45/104 EN Official Journal of the European Union 15.2.2019
2.3. Calibration of the load indicator at other speeds
The procedures described in paragraph 2.2 of this appendix shall be repeated as often as necessary for the
chosen speeds.
2.4. Calibration of force or torque
The same procedure shall be used for force or torque calibration.
3. VERIFICATION OF THE LOAD CURVE
3.1. Procedure
The load-absorption curve of the dynamometer from a reference setting at a speed of 80 km/h shall be verified
as follows:
3.1.1. Place the vehicle on the dynamometer or devise some other method of starting up the dynamometer.
3.1.2. Adjust the dynamometer to the absorbed load (F) at 80 km/h.
3.1.3. Note the load absorbed at 120, 100, 80, 60, 40 and 20 km/h.
3.1.4. Draw the curve F(V) and verify that it corresponds to the requirements of paragraph 1.1.3.1 of this appendix.
3.1.5. Repeat the procedure set out in paragraphs 3.1.1 to 3.1.4 of this appendix for other values of power F at
80 km/h and for other values of inertias.15.2.2019 EN Official Journal of the European Union L 45/105
APPENDIX 2
EXHAUST DILUTION SYSTEM
1. SYSTEM SPECIFICATION
1.1. System overview
A full-flow exhaust dilution system shall be used. This requires that the vehicle exhaust be continuously diluted
with ambient air under controlled conditions. The total volume of the mixture of exhaust and dilution air shall
be measured and a continuously proportional sample of the volume shall be collected for analysis. The quantities
of pollutants are determined from the sample concentrations, corrected for the pollutant content of the
ambient air and the totalised flow over the test period.
The exhaust dilution system shall consist of a transfer tube, a mixing chamber and dilution tunnel, a dilution
air conditioning, a suction device and a flow measurement device. Sampling probes shall be fitted in the
dilution tunnel as specified in Appendices 3, 4 and 5 to this annex.
The mixing chamber described above will be a vessel, such as those illustrated in Figures A4a.App2/6
and A4a.App2/7, in which vehicle exhaust gases and the dilution air are combined so as to produce
a homogeneous mixture at the chamber outlet.
1.2. General requirements
1.2.1. The vehicle exhaust gases shall be diluted with a sufficient amount of ambient air to prevent any water
condensation in the sampling and measuring system at all conditions which may occur during a test.
1.2.2. The mixture of air and exhaust gases shall be homogeneous at the point where the sampling probe is located
(see paragraph 1.3.3 of this appendix). The sampling probe shall extract a representative sample of the diluted
exhaust gas.
1.2.3. The system shall enable the total volume of the diluted exhaust gases to be measured.
1.2.4. The sampling system shall be gas-tight. The design of the variable-dilution sampling system and the materials
that go to make it up shall be such that they do not affect the pollutant concentration in the diluted exhaust
gases. Should any component in the system (heat exchanger, cyclone separator, blower, etc.) change the concen
tration of any of the pollutants in the diluted exhaust gases and the fault cannot be corrected, then sampling
for that pollutant shall be carried out upstream from that component.
1.2.5. All parts of the dilution system that are in contact with raw and diluted exhaust gas, shall be designed to
minimise deposition or alteration of the particulates. All parts shall be made of electrically conductive materials
that do not react with exhaust gas components, and shall be electrically grounded to prevent electrostatic
effects.
1.2.6. If the vehicle being tested is equipped with an exhaust pipe comprising several branches, the connecting tubes
shall be connected as near as possible to the vehicle without adversely affecting its operation.
1.2.7. The variable-dilution system shall be so designed as to enable the exhaust gases to be sampled without
appreciably changing the back-pressure at the exhaust pipe outlet.
1.2.8. The connecting tube between the vehicle and dilution system shall be designed so as to minimize heat loss.
1.3. Specific requirements
1.3.1. Connection to vehicle exhaust
The connecting tube between the vehicle exhaust outlets and the dilution system shall be as short as possible;
and satisfy the following requirements:
(a) Be less than 3,6 m long, or less than 6,1 m long if heat insulated. Its internal diameter may not exceed
105 mm;L 45/106 EN Official Journal of the European Union 15.2.2019
(b) Shall not cause the static pressure at the exhaust outlets on the vehicle being tested to differ by more than
± 0,75 kPa at 50 km/h, or more than ± 1,25 kPa for the whole duration of the test from the static
pressures recorded when nothing is connected to the vehicle exhaust outlets. The pressure shall be
measured in the exhaust outlet or in an extension having the same diameter, as near as possible to the end
of the pipe. Sampling systems capable of maintaining the static pressure to within ± 0,25 kPa may be used
if a written request from a manufacturer to the Technical Service substantiates the need for the closer
tolerance;
(c) Shall not change the nature of the exhaust gas;
(d) Any elastomer connectors employed shall be as thermally stable as possible and have minimum exposure
to the exhaust gases.
1.3.2. Dilution air conditioning
The dilution air used for the primary dilution of the exhaust in the Constant Volume Sampling (CVS) tunnel
shall be passed through a medium capable of reducing particulates in the most penetrating particulate size of
the filter material by ≥ 99,95 per cent, or through a filter of at least class H13 of EN 1822:1998. This
represents the specification of High Efficiency Particulate Air (HEPA) filters. The dilution air may optionally be
charcoal scrubbed before being passed to the HEPA filter. It is recommended that an additional coarse
particulate filter is situated before the HEPA filter and after the charcoal scrubber, if used.
At the vehicle manufacturer's request, the dilution air may be sampled according to good engineering practice
to determine the tunnel contribution to background particulate mass levels, which can then be subtracted from
the values measured in the diluted exhaust.
1.3.3. Dilution tunnel
Provision shall be made for the vehicle exhaust gases and the dilution air to be mixed. A mixing orifice may be
used.
In order to minimise the effects on the conditions at the exhaust outlet and to limit the drop in pressure inside
the dilution-air conditioning device, if any, the pressure at the mixing point shall not differ by more
than ± 0,25 kPa from atmospheric pressure.
The homogeneity of the mixture in any cross-section at the location of the sampling probe shall not vary by
more than ± 2 per cent from the average of the values obtained for at least five points located at equal intervals
on the diameter of the gas stream.
For particulate and particulate emissions sampling, a dilution tunnel shall be used which:
(a) Shall consist of a straight tube of electrically-conductive material, which shall be earthed;
(b) Shall be small enough in diameter to cause turbulent flow (Reynolds number ≥ 4 000) and of sufficient
length to cause complete mixing of the exhaust and dilution air;
(c) Shall be at least 200 mm in diameter;
(d) May be insulated.
1.3.4. Suction device
This device may have a range of fixed speeds to ensure sufficient flow to prevent any water condensation. This
result is generally obtained if the flow is either:
(a) Twice as high as the maximum flow of exhaust gas produced by accelerations of the driving cycle; or
(b) Sufficient to ensure that the CO concentration in the dilute-exhaust sample bag is less than 3 per cent by
2
volume for petrol and diesel, less than 2,2 per cent by volume for LPG and less than 1,5 per cent by
volume for NG/biomethane.
1.3.5. Volume measurement in the primary dilution system
The method of measuring total dilute exhaust volume incorporated in the constant volume sampler shall be
such that measurement is accurate to ± 2 per cent under all operating conditions. If the device cannot
compensate for variations in the temperature of the mixture of exhaust gases and dilution air at the measuring
point, a heat exchanger shall be used to maintain the temperature to within ± 6 K of the specified operating
temperature.15.2.2019 EN Official Journal of the European Union L 45/107
If necessary, some form of protection for the volume measuring device may be used e.g. a cyclone separator,
bulk stream filter, etc.
A temperature sensor shall be installed immediately before the volume measuring device. This temperature
sensor shall have an accuracy and a precision of ± 1 K and a response time of 0,1 s at 62 per cent of a given
temperature variation (value measured in silicone oil).
The measurement of the pressure difference from atmospheric pressure shall be taken upstream from and, if
necessary, downstream from the volume measuring device.
The pressure measurements shall have a precision and an accuracy of ± 0,4 kPa during the test.
1.4. Recommended system descriptions
Figure A4a.App2/6 and Figure A4a.App2/7 are schematic drawings of two types of recommended exhaust
dilution systems that meet the requirements of this annex.
Since various configurations can produce accurate results, exact conformity with these figures is not essential.
Additional components such as instruments, valves, solenoids and switches may be used to provide additional
information and co-ordinate the functions of the component system.
1.4.1. Full flow dilution system with positive displacement pump
Figure A4a.App2/6
Positive displacement pump dilution system
The Positive Displacement Pump (PDP) full flow dilution system satisfies the requirements of this annex by
metering the flow of gas through the pump at constant temperature and pressure. The total volume is
measured by counting the revolutions made by the calibrated positive displacement pump. The proportional
sample is achieved by sampling with pump, flow-meter and flow control valve at a constant flow rate. The
collecting equipment consists of:
1.4.1.1. A filter Dilution Air Filter (DAF) for the dilution air, which can be preheated if necessary. This filter shall
consist of the following filters in sequence: an optional activated charcoal filter (inlet side), and a high efficiency
particulate air (HEPA) filter (outlet side). It is recommended that an additional coarse particulate filter is situated
before the HEPA filter and after the charcoal filter, if used. The purpose of the charcoal filter is to reduce and
stabilize the hydrocarbon concentrations of ambient emissions in the dilution air;L 45/108 EN Official Journal of the European Union 15.2.2019
1.4.1.2. A Transfer Tube (TT) by which vehicle exhaust is admitted into a Dilution Tunnel (DT) in which the exhaust gas
and dilution air are mixed homogeneously;
1.4.1.3. The PDP, producing a constant-volume flow of the air/exhaust-gas mixture. The PDP revolutions, together with
associated temperature and pressure measurement are used to determine the flowrate;
1.4.1.4. A Heat Exchanger (HE) of a capacity sufficient to ensure that throughout the test the temperature of the
air/exhaust-gas mixture measured at a point immediately upstream of the positive displacement pump is within
6 K of the average operating temperature during the test. This device shall not affect the pollutant concen
trations of diluted gases taken off after for analysis.
1.4.1.5. A Mixing Chamber (MC) in which exhaust gas and air are mixed homogeneously, and which may be located
close to the vehicle so that the length of the TT is minimized.
1.4.2. Full flow dilution system with critical flow venturi
Figure A4a.App2/7
Critical flow venturi dilution system
The use of a Critical Flow Venturi (CFV) for the full flow dilution system is based on the principles of flow
mechanics for critical flow. The variable mixture flow rate of dilution and exhaust gas is maintained at sonic
velocity which is directly proportional to the square root of the gas temperature. Flow is continually
monitored, computed and integrated throughout the test.
The use of an additional critical-flow sampling venturi ensures the proportionality of the gas samples taken
from the dilution tunnel. As both pressure and temperature are equal at the two venturi inlets the volume of
the gas flow diverted for sampling is proportional to the total volume of diluted exhaust-gas mixture produced,
and thus the requirements of this annex are met. The collecting equipment consists of:
1.4.2.1. A filter (DAF) for the dilution air, which can be preheated if necessary. This filter shall consist of the following
filters in sequence: an optional activated charcoal filter (inlet side), and a HEPA filter (outlet side). It is
recommended that an additional coarse particulate filter is situated before the HEPA filter and after the charcoal
filter, if used. The purpose of the charcoal filter is to reduce and stabilize the hydrocarbon concentrations of
ambient emissions in the dilution air;
1.4.2.2. A MC in which exhaust gas and air are mixed homogeneously, and which may be located close to the vehicle
so that the length of the TT is minimized;15.2.2019 EN Official Journal of the European Union L 45/109
1.4.2.3. A DT from which particulates are sampled;
1.4.2.4. Some form of protection for the measurement system may be used e.g. a cyclone separator, bulk stream filter,
etc.;
1.4.2.5. A measuring CFV, to measure the flow volume of the diluted exhaust gas;
1.4.2.6. A blower (BL), of sufficient capacity to handle the total volume of diluted exhaust gas.
2. CVS CALIBRATION PROCEDURE
2.1. General requirements
The CVS system shall be calibrated by using an accurate flow-meter and a restricting device. The flow through
the system shall be measured at various pressure readings and the control parameters of the system measured
and related to the flows. The flow-metering device shall be dynamic and suitable for the high flow-rate
encountered in constant volume sampler testing. The device shall be of certified accuracy traceable to an
approved national or international standard.
2.1.1. Various types of flow-meter may be used, e.g. calibrated venturi, laminar flow-meter, calibrated turbine-meter,
provided that they are dynamic measurement systems and can meet the requirements of paragraph 1.3.5 of
this appendix.
2.1.2. The following paragraphs give details of methods of calibrating PDP and CFV units, using a laminar flow-meter,
which gives the required accuracy, together with a statistical check on the calibration validity.
2.2. Calibration of the PDP
2.2.1. The following calibration procedure outlines the equipment, the test configuration and the various parameters
that are measured to establish the flow-rate of the CVS pump. All the parameters related to the pump are
simultaneously measured with the parameters related to the flow-meter which is connected in series with the
pump. The calculated flow-rate (given in m3/min at pump inlet, absolute pressure and temperature) can then be
plotted versus a correlation function that is the value of a specific combination of pump parameters. The linear
equation that relates the pump flow and the correlation function is then determined. In the event that a CVS
has a multiple speed drive, a calibration for each range used shall be performed.
2.2.2. This calibration procedure is based on the measurement of the absolute values of the pump and flow-meter
parameters that relate the flow rate at each point. Three conditions shall be maintained to ensure the accuracy
and integrity of the calibration curve:
2.2.2.1. The pump pressures shall be measured at tappings on the pump rather than at the external piping on
the pump inlet and outlet. Pressure taps that are mounted at the top centre and bottom centre of the pump
drive headplate are exposed to the actual pump cavity pressures, and therefore reflect the absolute pressure
differentials;
2.2.2.2. Temperature stability shall be maintained during the calibration. The laminar flow-meter is sensitive to inlet
temperature oscillations which cause the data points to be scattered. Gradual changes of ± 1 K in temperature
are acceptable as long as they occur over a period of several minutes; and
2.2.2.3. All connections between the flow-meter and the CVS pump shall be free of any leakage.
2.2.3. During an exhaust emission test, the measurement of these same pump parameters enables the user to calculate
the flow rate from the calibration equation.
2.2.4. Figure A4a.App2/8 of this appendix shows one possible test set-up. Variations are permissible, provided
that the Technical Service approves them as being of comparable accuracy. If the set-up shown in
Figure A4a.App2/8 is used, the following data shall be found within the limits of precision given:
Barometric pressure (corrected) (P) ± 0,03 kPa
b
Ambient temperature (T) ± 0,2 KL 45/110 EN Official Journal of the European Union 15.2.2019
Air temperature at LFE (ETI) ± 0,15 K
Pressure depression upstream of LFE (EPI) ± 0,01 kPa
Pressure drop across the LFE matrix (EDP) ± 0,0015 kPa
Air temperature at CVS pump inlet (PTI) ± 0,2 K
Air temperature at CVS pump outlet (PTO) ± 0,2 K
Pressure depression at CVS pump inlet (PPI) ± 0,22 kPa
Pressure head at CVS pump outlet (PPO) ± 0,22 kPa
Pump revolutions during test period (n) ± 1 min– 1
Elapsed time for period (minimum 250 s) (t) ± 0,1 s
Figure A4a.App2/8
PDP calibration configuration
2.2.5. After the system has been connected as shown in Figure A4a.App2/8, set the variable restrictor in the
wide-open position and run the CVS pump for 20 minutes before starting the calibration.
2.2.6. Reset the restrictor valve to a more restricted condition in an increment of pump inlet depression (about 1 kPa)
that will yield a minimum of six data points for the total calibration. Allow the system to stabilize for three
minutes and repeat the data acquisition.
2.2.7. The air flow rate (Q) at each test point is calculated in standard m3/min from the flow-meter data using the
s
manufacturer's prescribed method.15.2.2019 EN Official Journal of the European Union L 45/111
2.2.8. The air flow-rate is then converted to pump flow (V ) in m3/rev at absolute pump inlet temperature and
0
pressure.
V ¼Q s� T p �101,33
0 n 273,2 P
p
Where:
V = pump flow rate at T and P (m3/rev),
0 p p
Q = air flow at 101,33 kPa and 273,2 K (m3/min),
s
T = pump inlet temperature (K),
p
P = absolute pump inlet pressure (kPa),
p
N = pump speed (min– 1).
2.2.9. To compensate for the interaction of pump speed, pressure variations at the pump and the pump slip rate, the
correlation function (x ) between the pump speed (n), the pressure differential from pump inlet to pump outlet
0
and the absolute pump outlet pressure is then calculated as follows:
sffiffiffiffiffiffiffi
x ¼1 ΔP p
0 n P
e
Where:
x = correlation function,
0
ΔP = pressure differential from pump inlet to pump outlet (kPa),
p
P = absolute outlet pressure (PPO + P) (kPa).
e b
A linear least-square fit is performed to generate the calibration equations which have the formula:
V = D – M (x )
0 0 0
n = A – B (ΔP )
p
D , M, A and B are the slope-intercept constants describing the lines.
0
2.2.10. A CVS system that has multiple speeds shall be calibrated on each speed used. The calibration curves generated
for the ranges shall be approximately parallel and the intercept values (D ) shall increase as the pump flow
0
range decreases.
2.2.11. If the calibration has been performed carefully, the calculated values from the equation will be within
0,5 per cent of the measured value of V . Values of M will vary from one pump to another. Calibration is
0
performed at pump start-up and after major maintenance.
2.3. Calibration of the CFV
2.3.1. Calibration of the CFV is based upon the flow equation for a critical venturi:
K P
Q ¼pvffiffiffi
s T
Where:
Q = flow,
s
K = calibration coefficient,
v
P = absolute pressure (kPa),
T = absolute temperature (K).L 45/112 EN Official Journal of the European Union 15.2.2019
Gas flow is a function of inlet pressure and temperature.
The calibration procedure described below establishes the value of the calibration coefficient at measured values
of pressure, temperature and air flow.
2.3.2. The manufacturer's recommended procedure shall be followed for calibrating electronic portions of the CFV.
2.3.3. Measurements for flow calibration of the critical flow venturi are required and the following data shall be
found within the limits of precision given:
Barometric pressure (corrected) (P) ± 0,03 kPa,
b
LFE air temperature, flow-meter (ETI) ± 0,15 K,
Pressure depression upstream of LFE (EPI) ± 0,01 kPa,
Pressure drop across (EDP) LFE matrix ± 0,0015 kPa,
Air flow (Q) ± 0,5 per cent,
s
CFV inlet depression (PPI) ± 0,02 kPa,
Temperature at venturi inlet (T) ± 0,2 K,
v
2.3.4. The equipment shall be set up as shown in Figure A4a.App2/9 and checked for leaks. Any leaks between the
flow-measuring device and the critical-flow venturi will seriously affect the accuracy of the calibration.
Figure A4a.App2/9
CFV calibration configuration
2.3.5. The variable flow restrictor shall be set to the open position, the blower shall be started and the system
stabilized. Data from all instruments shall be recorded.
2.3.6. The flow restrictor shall be varied and at least eight readings across the critical flow range of the venturi shall
be made.15.2.2019 EN Official Journal of the European Union L 45/113
2.3.7. The data recorded during the calibration shall be used in the following calculations. The air flow-rate (Q) at
s
each test point is calculated from the flow-meter data using the manufacturer's prescribed method.
Calculate values of the calibration coefficient for each test point:
pffiffiffiffiffi
Q T
K ¼ s v
v P
v
Where:
Q = flow-rate in m3/min at 273,2 K and 101,33 kPa,
s
T = temperature at the venturi inlet (K),
v
P = absolute pressure at the venturi inlet (kPa).
v
Plot K as a function of venturi inlet pressure. For sonic flow, K will have a relatively constant value. As
v v
pressure decreases (vacuum increases) the venturi becomes unchoked and K decreases. The resultant K
v v
changes are not permissible.
For a minimum of eight points in the critical region, calculate an average K and the standard deviation.
v
If the standard deviation exceeds 0,3 per cent of the average K, take corrective action.
v
3. SYSTEM VERIFICATION PROCEDURE
3.1. General requirements
The total accuracy of the CVS sampling system and analytical system shall be determined by introducing
a known mass of a pollutant gas into the system whilst it is being operated as if during a normal test and then
analysing and calculating the pollutant mass according to the formulae in paragraph 6.6. of this annex except
that the density of propane shall be taken as 1,967 grams per litre at standard conditions. The following two
techniques are known to give sufficient accuracy.
The maximum permissible deviation between the quantity of gas introduced and the quantity of gas measured
is 5 per cent.
3.2. Critical Flow Orifice (CFO) method
3.2.1. Metering a constant flow of pure gas (CO or C H ) using a critical flow orifice device.
3 8
3.2.2. A known quantity of pure gas (CO or C H ) is fed into the CVS system through the calibrated critical orifice. If
3 8
the inlet pressure is high enough, the flow-rate (q), which is adjusted by means of the critical flow orifice, is
independent of orifice outlet pressure (critical flow). If deviations exceeding 5 per cent occur, the cause of the
malfunction shall be determined and corrected. The CVS system is operated as in an exhaust emission test for
about 5 to 10 minutes. The gas collected in the sampling bag is analysed by the usual equipment and the
results compared to the concentration of the gas samples which was known beforehand.
3.3. Gravimetric method
3.3.1. Metering a limited quantity of pure gas (CO or C H ) by means of a gravimetric technique.
3 8
3.3.2. The following gravimetric procedure may be used to verify the CVS system.
The weight of a small cylinder filled with either carbon monoxide or propane is determined with a precision of
± 0,01 g. For about 5 to 10 minutes, the CVS system is operated as in a normal exhaust emission test, while
CO or propane is injected into the system. The quantity of pure gas involved is determined by means of
differential weighing. The gas accumulated in the bag is then analysed by means of the equipment normally
used for exhaust-gas analysis. The results are then compared to the concentration figures computed previously.L 45/114 EN Official Journal of the European Union 15.2.2019
APPENDIX 3
GASEOUS EMISSIONS MEASUREMENT EQUIPMENT
1. SPECIFICATION
1.1. System overview
A continuously proportional sample of the diluted exhaust gases and the dilution air shall be collected for
analysis.
Mass gaseous emissions shall be determined from the proportional sample concentrations and the total
volume measured during the test. The sample concentrations shall be corrected to take account of the
pollutant content of the ambient air.
1.2. Sampling system requirements
1.2.1. The sample of dilute exhaust gases shall be taken upstream from the suction device but downstream from the
conditioning devices (if any).
1.2.2. The flow rate shall not deviate from the average by more than ± 2 per cent.
1.2.3. The sampling rate shall not fall below 5 litres per minute and shall not exceed 0,2 per cent of the flow rate of
the dilute exhaust gases. An equivalent limit shall apply to constant-mass sampling systems.
1.2.4. A sample of the dilution air shall be taken at a constant flow rate near the ambient air-inlet (after the filter if
one is fitted).
1.2.5. The dilution air sample shall not be contaminated by exhaust gases from the mixing area.
1.2.6. The sampling rate for the dilution air shall be comparable to that used in the case of the dilute exhaust gases.
1.2.7. The materials used for the sampling operations shall be such as not to change the pollutant concentration.
1.2.8. Filters may be used in order to extract the solid particulates from the sample.
1.2.9. The various valves used to direct the exhaust gases shall be of a quick-adjustment, quick-acting type.
1.2.10. Quick-fastening gas-tight connections may be used between the three-way valves and the sampling bags, the
connections sealing themselves automatically on the bag side. Other systems may be used for conveying the
samples to the analyser (three-way stop valves, for example).
1.2.11. Storage of the sample
The gas samples shall be collected in sampling bags of sufficient capacity not to impede the sample flow; the
bag material shall be such as to affect neither the measurements themselves nor the chemical composition of
the gas samples by more than ± 2 per cent after 20 minutes (for instance: laminated polyethylene/polyamide
films, or fluorinated polyhydrocarbons).
1.2.12. Hydrocarbon sampling system – diesel engines
1.2.12.1. The hydrocarbon sampling system shall consist of a heated sampling probe, line, filter and pump. The
sampling probe shall be installed at the same distance from the exhaust gas inlet as the particulate sampling
probe, in such a way that neither interferes with samples taken by the other. It shall have a minimum internal
diameter of 4 mm.
1.2.12.2. All heated parts shall be maintained at a temperature of 463 K (190 °C) ± 10 K by the heating system.
1.2.12.3. The average concentration of the measured hydrocarbons shall be determined by integration.15.2.2019 EN Official Journal of the European Union L 45/115
1.2.12.4. The heated sampling line shall be fitted with a heated filter (F ) 99 per cent efficient with particulates
H
≥ 0,3 µm, to extract any solid particulates from the continuous flow of gas required for analysis.
1.2.12.5. The sampling system response time (from the probe to the analyser inlet) shall be no more than four seconds.
1.2.12.6. The HFID shall be used with a constant flow (heat exchanger) system to ensure a representative sample,
unless compensation for varying CVS volume flow is made.
1.3. Gas Analysis Requirements
1.3.1. Carbon monoxide (CO) and carbon dioxide (CO) analyses
2
Analysers shall be of the Non-Dispersive Infra-Red (NDIR) absorption type.
1.3.2. Total Hydrocarbons (THC) analysis - spark-ignition engines
The analyser shall be of the FID type calibrated with propane gas expressed equivalent to carbon atoms (C ).
1
1.3.3. Total Hydrocarbons (THC) analysis - compression-ignition engines
The analyser shall be of the flame ionisation type with detector, valves, pipework, etc., heated to 463 K
(190 °C) ± 10 K (HFID). It shall be calibrated with propane gas expressed equivalent to carbon atoms (C ).
1
1.3.4. Methane (CH ) analysis
4
The analyser shall be either a gas chromatograph combined with a FID type or FID with a non-methane
cutter type, calibrated with methane gas expressed as equivalent to carbon atoms (C ).
1
1.3.5. Water (H O) analysis
2
The analyser shall be of the NDIR absorption type. The NDIR shall be calibrated either with water vapour or
with propylene (C H ). If the NDIR is calibrated with water vapour, it shall be ensured that no water
3 6
condensation can occur in tubes and connections during the calibration process. If the NDIR is calibrated
with propylene, the manufacturer of the analyzer shall provide the information for converting the concen
tration of propylene to its corresponding concentration of water vapour. The values for conversion shall be
periodically checked by the manufacturer of the analyzer, and at least once per year.
1.3.6. Hydrogen (H ) analysis
2
The analyser shall be of the sector field mass spectrometry type, calibrated with hydrogen.
1.3.7. Nitrogen oxide (NO) analysis
x
The analyser shall be either of the Chemi-Luminescent Analyser (CLA) or of the Non-Dispersive Ultra-Violet
Resonance Absorption (NDUVR) type, both with NO-NO converters.
x
1.3.8. The analysers shall have a measuring range compatible with the accuracy required to measure the concen
trations of the exhaust gas sample pollutants.
1.3.9. Measurement error shall not exceed ± 2 per cent (intrinsic error of analyser) disregarding the true value for
the calibration gases.
1.3.10. For concentrations of less than 100 ppm, the measurement error shall not exceed ± 2 ppm.
1.3.11. The ambient air sample shall be measured on the same analyser with an appropriate range.
1.3.12. No gas drying device shall be used before the analysers unless shown to have no effect on the pollutant
content of the gas stream.L 45/116 EN Official Journal of the European Union 15.2.2019
1.4. Recommended system descriptions
Figure A4a.App3/10 is a schematic drawing of the system for gaseous emissions sampling.
Figure A4a.App3/10
Gaseous emissions sampling schematic
The components of the system are as follows:
1.4.1. Two sampling probes (S and S ) for continuous sampling of the dilution air and of the diluted exhaust-
1 2
gas/air mixture;
1.4.2. A filter (F), to extract solid particulates from the flows of gas collected for analysis;
1.4.3. Pumps (P), to collect a constant flow of the dilution air as well as of the diluted exhaust-gas/air mixture
during the test;
1.4.4. Flow controller (N), to ensure a constant uniform flow of the gas samples taken during the course of the test
from sampling probes S and S (for PDP-CVS) and flow of the gas samples shall be such that, at the end of
1 2
each test, the quantity of the samples is sufficient for analysis (approximately 10 litres per minute);
1.4.5. Flow meters (FL), for adjusting and monitoring the constant flow of gas samples during the test;
1.4.6. Quick-acting valves (V), to divert a constant flow of gas samples into the sampling bags or to the outside
vent;
1.4.7. Gas-tight, quick-lock coupling elements (Q) between the quick-acting valves and the sampling bags; the
coupling shall close automatically on the sampling-bag side; as an alternative, other ways of transporting the
samples to the analyser may be used (three-way stopcocks, for instance);
1.4.8. Bags (B), for collecting samples of the diluted exhaust gas and of the dilution air during the test;15.2.2019 EN Official Journal of the European Union L 45/117
1.4.9. A sampling critical-flow venturi (SV), to take proportional samples of the diluted exhaust gas at sampling
probe S A(CFV-CVS only);
2
1.4.10. A scrubber (PS), in the sampling line (CFV-CVS only);
1.4.11. Components for hydrocarbon sampling using HFID:
Fh is a heated filter,
S is a sampling point close to the mixing chamber,
3
V is a heated multi-way valve,
h
Q is a quick connector to allow the ambient air sample BA to be analysed on the HFID,
FID is a heated flame ionisation analyser,
R and I are a means of integrating and recording the instantaneous hydrocarbon concentrations,
L is a heated sample line.
h
2. CALIBRATION PROCEDURES
2.1. Analyser calibration procedure
2.1.1. Each analyser shall be calibrated as often as necessary and in any case in the month before type approval
testing and at least once every six months for verifying conformity of production.
2.1.2. Each normally used operating range shall be calibrated by the following procedure:
2.1.2.1. The analyser calibration curve is established by at least five calibration points spaced as uniformly as possible.
The nominal concentration of the calibration gas of the highest concentration shall be not less than
80 per cent of the full scale.
2.1.2.2. The calibration gas concentration required may be obtained by means of a gas divider, diluting with purified
N or with purified synthetic air. The accuracy of the mixing device shall be such that the concentrations of
2
the diluted calibration gases may be determined to within ± 2 per cent.
2.1.2.3. The calibration curve is calculated by the least squares method. If the resulting polynomial degree is greater
than 3, the number of calibration points shall be at least equal to this polynomial degree plus 2.
2.1.2.4. The calibration curve shall not differ by more than ± 2 per cent from the nominal value of each calibration
gas.
2.1.3. Trace of the calibration curve
From the trace of the calibration curve and the calibration points, it is possible to verify that the calibration
has been carried out correctly. The different characteristic parameters of the analyser shall be indicated,
particularly:
The scale;
The sensitivity;
The zero point;
The date of carrying out the calibration.
2.1.4. If it can be shown to the satisfaction of the Technical Service that alternative technology (e.g. computer,
electronically controlled range switch, etc.) can give equivalent accuracy, then these alternatives may be used.
2.2. Analyser verification procedure
2.2.1. Each normally used operating range shall be checked prior to each analysis in accordance with the following:
2.2.2. The calibration shall be checked by use of a zero gas and by use of a span gas that has a nominal value
within 80-95 per cent of the supposed value to be analysed.L 45/118 EN Official Journal of the European Union 15.2.2019
2.2.3. If, for the two points considered, the value found does not differ by more than ± 5 per cent of the full scale
from the theoretical value, the adjustment parameters may be modified. Should this not be the case, a new
calibration curve shall be established in accordance with paragraph 2.1 of this appendix.
2.2.4. After testing, zero gas and the same span gas are used for re-checking. The analysis is considered acceptable if
the difference between the two measuring results is less than 2 per cent.
2.3. FID hydrocarbon response check procedure
2.3.1. Detector response optimisation
The FID shall be adjusted, as specified by the instrument manufacturer. Propane in air should be used, to
optimise the response, on the most common operating range.
2.3.2. Calibration of the HC analyser
The analyser should be calibrated using propane in air and purified synthetic air (see paragraph 3. of this
appendix).
Establish a calibration curve as described in paragraph 2.1 of this appendix.
2.3.3. Response factors of different hydrocarbons and recommended limits
The response factor (Rf), for a particular hydrocarbon species is the ratio of the FID C reading to the gas
1
cylinder concentration, expressed as ppm C .
1
The concentration of the test gas shall be at a level to give a response of approximately 80 per cent of
full-scale deflection, for the operating range. The concentration shall be known, to an accuracy of
± 2 per cent in reference to a gravimetric standard expressed in volume. In addition, the gas cylinder shall be
pre-conditioned for 24 hours at a temperature between 293 K and 303 K (20 and 30 °C).
Response factors should be determined when introducing an analyser into service and thereafter at major
service intervals. The test gases to be used and the recommended response factors are:
Methane and purified air: 1,00 < Rf < 1,15
or 1,00 < Rf < 1,05 for NG/biomethane fuelled vehicles
Propylene and purified air: 0,90 < Rf < 1,00
Toluene and purified air: 0,90 < Rf < 1,00
These are relative to a response factor (Rf) of 1,00 for propane and purified air,
2.3.4. Oxygen interference check and recommended limits
The response factor shall be determined as described in paragraph 2.3.3. The test gas to be used and
recommended response factor range is:
Propane and nitrogen: 0,95 < Rf < 1,05
2.4. NO converter efficiency test procedure
x
The efficiency of the converter used for the conversion of NO into NO is tested as follows:
2
Using the test set up as shown in Figure A4a.App3/11 and the procedure described below, the efficiency of
converters can be tested by means of an ozonator.
2.4.1. Calibrate the analyzer in the most common operating range following the manufacturer's specifications using
zero and span gas (the NO content of which shall amount to about 80 per cent of the operating range and
the NO concentration of the gas mixture shall be less than 5 per cent of the NO concentration). The
2
NO analyser shall be in the NO mode so that the span gas does not pass through the converter. Record the
x
indicated concentration.15.2.2019 EN Official Journal of the European Union L 45/119
2.4.2. Via a T-fitting, oxygen or synthetic air is added continuously to the span gas flow until the concentration
indicated is about 10 per cent less than the indicated calibration concentration given in paragraph 2.4.1 of
this appendix. Record the indicated concentration (c). The ozonator is kept deactivated throughout this
process.
2.4.3. The ozonator is now activated to generate enough ozone to bring the NO concentration down to 20 per cent
(minimum 10 per cent) of the calibration concentration given in paragraph 2.4.1 of this appendix. Record
the indicated concentration (d).
2.4.4. The NO analyser is then switched to the NO mode, which means that the gas mixture (consisting of NO,
x x
NO , O and N ) now passes through the converter. Record the indicated concentration (a).
2 2 2
2.4.5. The ozonator is now deactivated. The mixture of gases described in paragraph 2.4.2 of this appendix passes
through the converter into the detector. Record the indicated concentration (b).
Figure A4a.App3/11
NO converter efficiency test configuration
x
2.4.6. With the ozonator deactivated, the flow of oxygen or synthetic air is also shut off. The NO reading of the
2
analyser shall then be no more than 5 per cent above the figure given in paragraph 2.4.1 of this appendix.
2.4.7. The efficiency of the NO converter is calculated as follows:
x
� �
a − b
Efficiency ðper centÞ¼ 1þ �100
c − d
2.4.8. The efficiency of the converter shall not be less than 95 per cent.
2.4.9. The efficiency of the converter shall be tested at least once a week.
3. REFERENCE GASES
3.1. Pure gases
The following pure gases shall be available, if necessary, for calibration and operation:
Purified nitrogen: (purity: ≤ 1 ppm C, ≤ 1 ppm CO, ≤ 400 ppm CO, ≤ 0,1 ppm NO);
2
Purified synthetic air: (purity: ≤ 1 ppm C, ≤ 1 ppm CO, ≤ 400 ppm CO , ≤ 0,1 ppm NO); oxygen content
2
between 18 and 21 per cent volume;L 45/120 EN Official Journal of the European Union 15.2.2019
Purified oxygen: (purity > 99,5 per cent vol, O );
2
Purified hydrogen (and mixture containing helium): (purity ≤ 1 ppm C, ≤ 400 ppm CO);
2
Carbon monoxide: (minimum purity 99,5 per cent);
Propane: (minimum purity 99,5 per cent);
Propylene: (minimum purity 99,5 per cent,
3.2. Calibration and span gases
Mixtures of gases having the following chemical compositions shall be available:
(a) C H and purified synthetic air (see paragraph 3.1 above);
3 8
(b) CO and purified nitrogen;
(c) CO and purified nitrogen.
2
NO and purified nitrogen (the amount of NO contained in this calibration gas shall not exceed 5 per cent of
2
the NO content).
The true concentration of a calibration gas shall be within ± 2 per cent of the stated figure.15.2.2019 EN Official Journal of the European Union L 45/121
APPENDIX 4
PARTICULATE MASS EMISSIONS MEASUREMENT EQUIPMENT
1. SPECIFICATION
1.1. System overview
1.1.1. The particulate sampling unit shall consist of a sampling probe located in the dilution tunnel, a particulate
transfer tube, a filter holder, a partial-flow pump, and flow rate regulators and measuring units.
1.1.2. It is recommended that a particulate size pre-classifier (e.g. cyclone or impactor) be employed upstream of the
filter holder. However, a sampling probe, acting as an appropriate size-classification device such as that shown
in Figure A4a.App4/13, is acceptable.
1.2. General requirements
1.2.1. The sampling probe for the test gas flow for particulates shall be so arranged within the dilution tract that a
representative sample gas flow can be taken from the homogeneous air/exhaust mixture.
1.2.2. The particulate sample flow rate shall be proportional to the total flow of diluted exhaust gas in the dilution
tunnel to within a tolerance of ± 5 per cent of the particulate sample flow rate.
1.2.3. The sampled dilute exhaust gas shall be maintained at a temperature below 325 K (52 °C) within 20 cm
upstream or downstream of the particulate filter face, except in the case of a regeneration test where the
temperature shall be below 192 °C.
1.2.4. The particulate sample shall be collected on a single filter mounted within a holder in the sampled dilute
exhaust gas flow.
1.2.5. All parts of the dilution system and the sampling system from the exhaust pipe up to the filter holder, which
are in contact with raw and diluted exhaust gas, shall be designed to minimise deposition or alteration of the
particulates. All parts shall be made of electrically conductive materials that do not react with exhaust gas
components, and shall be electrically grounded to prevent electrostatic effects.
1.2.6. If it is not possible to compensate for variations in the flow rate, provision shall be made for a heat exchanger
and a temperature control device as specified in paragraph 1.3.5 of Appendix 2 to this annex so as to ensure
that the flow rate in the system is constant and the sampling rate accordingly proportional.
1.3. Specific requirements
1.3.1. PM sampling probe
1.3.1.1. The sample probe shall deliver the particulate-size classification performance described in paragraph 1.3.1.4 of
this appendix. It is recommended that this performance be achieved by the use of a sharp-edged, open-ended
probe facing directly into the direction of flow plus a pre-classifier (cyclone impactor, etc.). An appropriate
sampling probe, such as that indicated in Figure A4a.App4/13, may alternatively be used provided it achieves
the pre-classification performance described in paragraph 1.3.1.4 of this appendix.
1.3.1.2. The sample probe shall be installed near the tunnel centreline, between 10 and 20 tunnel diameters
downstream of the exhaust gas inlet to the tunnel and have an internal diameter of at least 12 mm.
If more than one simultaneous sample is drawn from a single sample probe, the flow drawn from that probe
shall be split into identical sub-flows to avoid sampling artefacts.
If multiple probes are used, each probe shall be sharp-edged, open-ended and facing directly into the direction
of flow. Probes shall be equally spaced around the central longitudinal axis of the dilution tunnel, with the
spacing between probes at least 5 cm.L 45/122 EN Official Journal of the European Union 15.2.2019
1.3.1.3. The distance from the sampling tip to the filter mount shall be at least five probe diameters, but shall not
exceed 1 020 mm.
1.3.1.4. The pre-classifier (e.g. cyclone, impactor, etc.) shall be located upstream of the filter holder assembly. The
pre-classifier 50 per cent cut point particulate diameter shall be between 2,5 µm and 10 µm at the volumetric
flow rate selected for sampling particulate mass emissions. The pre-classifier shall allow at least 99 per cent of
the mass concentration of 1 µm particulates entering the pre-classifier to pass through the exit of the
pre-classifier at the volumetric flow rate selected for sampling particulate mass emissions. However, a sampling
probe, acting as an appropriate size-classification device, such as that shown in Figure A4a.App3/13, is
acceptable as an alternative to a separate pre-classifier.
1.3.2. Sample pump and flow meter
1.3.2.1. The sample gas flow measurement unit shall consist of pumps, gas flow regulators and flow measuring units.
1.3.2.2. The temperature of the gas flow in the flow meter may not fluctuate by more than ± 3 K, except during
regeneration tests on vehicles equipped with periodically regenerating after treatment devices. In addition, the
sample mass flow rate shall remain proportional to the total flow of diluted exhaust gas to within a tolerance
of ± 5 per cent of the particulate sample mass flow rate. Should the volume of flow change unacceptably as
a result of excessive filter loading, the test shall be stopped. When it is repeated, the rate of flow shall be
decreased.
1.3.3. Filter and filter holder
1.3.3.1. A valve shall be located downstream of the filter in the direction of flow. The valve shall be quick enough
acting to open and close within 1 s of the start and end of test.
1.3.3.2. It is recommended that the mass collected on the 47 mm diameter filter (P) is ≥ 20 µg and that the filter
e
loading should be maximized consistent with the requirements of paragraphs 1.2.3, 1.3.2 and 1.3.3 of this
appendix.
1.3.3.3. For a given test the gas filter face velocity shall be set to a single value within the range 20 cm/s to 80 cm/s
unless the dilution system is being operated with sampling flow proportional to CVS flow rate.
1.3.3.4. Fluorocarbon coated glass fibre filters or fluorocarbon membrane filters are required. All filter types shall have
a 0,3 µm DOP (di-octylphthalate) or PAO (poly-alpha-olefin) CS 68649-12-7 or CS 68037-01-4 collection
efficiency of at least 99 per cent at a gas filter face velocity of 5,33 cm/s measured according to one of the
following standards:
(a) U.S.A. Department of Defense Test Method Standard, MIL-STD-282 method 102.8: DOP-Smoke Penetration
of Aerosol-Filter Element
(b) U.S.A. Department of Defense Test Method Standard, MIL-STD-282 method 502.1.1: DOP-Smoke
Penetration of Gas-Mask Canisters
(c) Institute of Environmental Sciences and Technology, IEST-RP-CC021: Testing HEPA and ULPA Filter Media.
1.3.3.5. The filter holder assembly shall be of a design that provides an even flow distribution across the filter stain
area. The filter stain area shall be at least 1 075 mm2.
1.3.4. Filter weighing chamber and balance
1.3.4.1. The microgram balance used to determine the weight of a filter shall have a precision (standard deviation) of
2 µg and resolution of 1 µg or better.
It is recommended that the microbalance be checked at the start of each weighing session by weighing one
reference weight of 50 mg. This weight shall be weighed three times and the average result recorded. If the
average result of the weighing is ± 5 µg of the result from the previous weighing session then the weighing
session and balance are considered valid.15.2.2019 EN Official Journal of the European Union L 45/123
The weighing chamber (or room) shall meet the following conditions during all filter conditioning and
weighing operations:
Temperature maintained at 295 K ± 3 K (22 °C ± 3 °C);
Relative humidity maintained at 45 per cent ± 8 per cent;
Dewpoint maintained at 9,5 °C ± 3 °C.
It is recommended that temperature and humidity conditions are recorded along with sample and reference
filter weights.
1.3.4.2. Buoyancy correction
All filter weights shall be corrected for filter buoyancy in air.
The buoyancy correction depends on the density of the sample filter medium, the density of air, and the density
of the calibration weight used to calibrate the balance. The density of the air is dependent on the pressure,
temperature and humidity.
It is recommended that the temperature and dew point of the weighing environment are controlled to
22 °C ± 1 °C and dew point of 9,5 °C ± 1 °C respectively. However, the minimum requirements stated in
paragraph 1.3.4.1 of this appendix will also result in an acceptable correction for buoyancy effects. The
correction for buoyancy shall be applied as follows:
m = m · (1 – ((ρ )/(ρ )))/(1 – ((ρ )/(ρ )))
corr uncorr air weight air media
Where:
m = PM mass corrected for buoyancy
corr
m = PM mass uncorrected for buoyancy
uncorr
ρ = density of air in balance environment
air
ρ = density of calibration weight used to span balance
weight
ρ = density of PM sample medium (filter) according to the table below:
media
Filter Medium ρ
media
Teflon coated glass fibre (e.g. TX40) 2 300 kg/m3
ρ can be calculated as follows:
air
P �M
ρ ¼ abs mix
air R�T
amb
Where:
P = absolute pressure in balance environment,
abs
M = molar mass of air in balance environment (28,836 gmol– 1),
mix
R = molar gas constant (8,314 Jmol– 1K– 1),
T = absolute ambient temperature of balance environment.
amb
The chamber (or room) environment shall be free of any ambient contaminants (such as dust) that would settle
on the particulate filters during their stabilisation.L 45/124 EN Official Journal of the European Union 15.2.2019
Limited deviations from weighing room temperature and humidity specifications will be allowed provided their
total duration does not exceed 30 minutes in any one filter conditioning period. The weighing room should
meet the required specifications prior to personal entrance into the weighing room. During the weighing
operation no deviations from the specified conditions are permitted.
1.3.4.3. The effects of static electricity shall be nullified. This may be achieved by grounding the balance through
placement upon an antistatic mat and neutralisation of the particulate filters prior to weighing using
a Polonium neutraliser or a device of similar effect. Alternatively nullification of static effects may be achieved
through equalisation of the static charge.
1.3.4.4. A test filter shall be removed from the chamber no earlier than an hour before the test begins.
1.4. Recommended system description
Figure A4a.App4/12 is a schematic drawing of the recommended particulate sampling system. Since various
configurations can produce equivalent results, exact conformance with this figure is not required. Additional
components such as instruments, valves, solenoids, pumps and switches may be used to provide additional
information and co-ordinate the functions of component systems. Further components that are not needed to
maintain accuracy with other system configurations may be excluded if their exclusion is based upon good
engineering judgement.
Figure A4a.App4/12
Particulate sampling system
A sample of the diluted exhaust gas is taken from the full flow dilution tunnel DT through the particulate
sampling probe PSP and the particulate transfer tube PTT by means of the pump P. The sample is passed
through the particulate size pre-classifier PCF and the filter holder(s) FH that contain the particulate sampling
filter(s). The flow rate for sampling is set by the flow controller FC.
2. CALIBRATION AND VERIFICATION PROCEDURES
2.1. Flow meter calibration
The Technical Service shall ensure the existence of a calibration certificate for the flow meter demonstrating
compliance with a traceable standard within a 12 month period prior to the test, or since any repair or change
which could influence calibration.15.2.2019 EN Official Journal of the European Union L 45/125
2.2. Microbalance calibration
The Technical Service shall ensure the existence of a calibration certificate for the microbalance demonstrating
compliance with a traceable standard within a 12 month period prior to the test.
2.3. Reference filter weighing
To determine the specific reference filter weights, at least two unused reference filters shall be weighed within
8 hours of, but preferably at the same time as, the sample filter weighings. Reference filters shall be of the same
size and material as the sample filter.
If the specific weight of any reference filter changes by more than ± 5 µg between sample filter weighings, then
the sample filter and reference filters shall be reconditioned in the weighing room and then reweighed.
The comparison of reference filter weighings shall be made between the specific weights and the rolling average
of that reference filter's specific weights.
The rolling average shall be calculated from the specific weights collected in the period since the reference
filters were placed in the weighing room. The averaging period shall be at least 1 day but not exceed 30 days.
Multiple reconditioning and reweighings of the sample and reference filters are permitted until a period of 80 h
has elapsed following the measurement of gases from the emissions test.
If, prior to or at the 80 h point, more than half the number of reference filters meet the ± 5 µg criterion, then
the sample filter weighing can be considered valid.
If, at the 80 h point, two reference filters are employed and one filter fails the ± 5 µg criterion, the sample filter
weighing can be considered valid under the condition that the sum of the absolute differences between specific
and rolling averages from the two reference filters shall be less than or equal to 10 µg.
In case less than half of the reference filters meet the ± 5 µg criterion the sample filter shall be discarded, and
the emissions test repeated. All reference filters shall be discarded and replaced within 48 hours.
In all other cases, reference filters shall be replaced at least every 30 days and in such a manner that no sample
filter is weighed without comparison to a reference filter that has been present in the weighing room for at
least 1 day.
If the weighing room stability criteria outlined in paragraph 1.3.4 of this appendix are not met, but the
reference filter weighings meet the above criteria, the vehicle manufacturer has the option of accepting the
sample filter weights or voiding the tests, fixing the weighing room control system and re-running the test.
Figure A4a.App4/13
Particulate sampling probe configurationL 45/126 EN Official Journal of the European Union 15.2.2019
APPENDIX 5
PARTICULATE NUMBER EMISSIONS MEASUREMENT EQUIPMENT
1. SPECIFICATION
1.1. System overview
1.1.1. The particulate sampling system shall consist of a dilution tunnel, a sampling probe and a Volatile Particulate
Remover (VPR) upstream of a Particulate Number Counter (PNC) and suitable transfer tubing.
1.1.2. It is recommended that a particulate size pre-classifier (e.g. cyclone, impactor etc.) be located prior to the inlet
of the VPR. However, a sample probe acting as an appropriate size-classification device, such as that shown in
Figure A4a.App4/13, is an acceptable alternative to the use of a particulate size pre-classifier.
1.2. General requirements
1.2.1. The particulate sampling point shall be located within a dilution tunnel.
The sampling probe tip or Particulate Sampling Point (PSP) and Particulate Transfer Tube (PTT) together
comprise the Particulate Transfer System (PTS). The PTS conducts the sample from the dilution tunnel to the
entrance of the VPR. The PTS shall meet the following conditions:
It shall be installed near the tunnel centre line, 10 to 20 tunnel diameters downstream of the gas inlet, facing
upstream into the tunnel gas flow with its axis at the tip parallel to that of the dilution tunnel.
It shall have an internal diameter of ≥ 8 mm.
Sample gas drawn through the PTS shall meet the following conditions:
It shall have a flow Reynolds number (Re) of < 1 700;
It shall have a residence time in the PTS of ≤ 3 seconds.
Any other sampling configuration for the PTS for which equivalent particulate penetration at 30 nm can be
demonstrated will be considered acceptable.
The Outlet Tube (OT) conducting the diluted sample from the VPR to the inlet of the PNC shall have the
following properties:
It shall have an internal diameter of ≥ 4 mm;
Sample gas flow through the OT shall have a residence time of ≤ 0,8 seconds.
Any other sampling configuration for the OT for which equivalent particulate penetration at 30 nm can be
demonstrated will be considered acceptable.
1.2.2. The VPR shall include devices for sample dilution and for volatile particulate removal. The sampling probe for
the test gas flow shall be so arranged within the dilution tract that a representative sample gas flow is taken
from a homogeneous air/exhaust mixture.
1.2.3. All parts of the dilution system and the sampling system from the exhaust pipe up to the PNC, which are in
contact with raw and diluted exhaust gas, shall be designed to minimise deposition of the particulates. All
parts shall be made of electrically conductive materials that do not react with exhaust gas components, and
shall be electrically grounded to prevent electrostatic effects.
1.2.4. The particulate sampling system shall incorporate good aerosol sampling practice that includes the avoidance
of sharp bends and abrupt changes in cross-section, the use of smooth internal surfaces and the minimisation
of the length of the sampling line. Gradual changes in the cross-section are permissible.15.2.2019 EN Official Journal of the European Union L 45/127
1.3. Specific requirements
1.3.1. The particulate sample shall not pass through a pump before passing through the PNC.
1.3.2. A sample pre-classifier is recommended.
1.3.3. The sample preconditioning unit shall:
1.3.3.1. Be capable of diluting the sample in one or more stages to achieve a particulate number concentration
below the upper threshold of the single particulate count mode of the PNC and a gas temperature below 35 °C
at the inlet to the PNC;
1.3.3.2. Include an initial heated dilution stage which outputs a sample at a temperature of ≥ 150 °C and ≤ 400 °C and
dilutes by a factor of at least 10;
1.3.3.3. Control heated stages to constant nominal operating temperatures, within the range specified in
paragraph 1.3.3.2 of this appendix, to a tolerance of ± 10 °C. Provide an indication of whether or not heated
stages are at their correct operating temperatures.
1.3.3.4. Achieve a particulate concentration reduction factor (f(d)), as defined in paragraph 2.2.2 of this appendix, for
r i
particulates of 30 nm and 50 nm electrical mobility diameters, that is no more than 30 per cent and
20 per cent respectively higher, and no more than 5 per cent lower than that for particulates of 100 nm
electrical mobility diameter for the VPR as a whole;
1.3.3.5. Also achieve > 99,0 per cent vaporisation of 30 nm tetracontane (CH (CH ) CH ) particulates, with an inlet
3 238 3
concentration of ≥ 10 000 cm– 3, by means of heating and reduction of partial pressures of the tetracontane.
1.3.4. The PNC shall:
1.3.4.1. Operate under full flow operating conditions;
1.3.4.2. Have a counting accuracy of ± 10 per cent across the range 1 cm– 3 to the upper threshold of the single
particulate count mode of the PNC against a traceable standard. At concentrations below 100 cm– 3
measurements averaged over extended sampling periods may be required to demonstrate the accuracy of the
PNC with a high degree of statistical confidence;
1.3.4.3. Have a readability of at least 0,1 particulates cm– 3 at concentrations below 100 cm– 3;
1.3.4.4. Have a linear response to particulate concentrations over the full measurement range in single particulate
count mode;
1.3.4.5. Have a data reporting frequency equal to or greater than 0,5 Hz;
1.3.4.6. Have a T90 response time over the measured concentration range of less than 5 s;
1.3.4.7. Incorporate a coincidence correction function up to a maximum 10 per cent correction, and may make use of
an internal calibration factor as determined in paragraph 2.1.3 of this appendix, but shall not make use of any
other algorithm to correct for or define the counting efficiency;
1.3.4.8. Have counting efficiencies at particulate sizes of 23 nm (± 1 nm) and 41 nm (± 1 nm) electrical mobility
diameter of 50 per cent (± 12 per cent) and > 90 per cent respectively. These counting efficiencies may be
achieved by internal (for example; control of instrument design) or external (for example; size pre-classification)
means;
1.3.4.9. If the PNC makes use of a working liquid, it shall be replaced at the frequency specified by the instrument
manufacturer.
1.3.5. Where they are not held at a known constant level at the point at which PNC flow rate is controlled, the
pressure and/or temperature at inlet to the PNC shall be measured and reported for the purposes of correcting
particulate concentration measurements to standard conditions.
1.3.6. The sum of the residence time of the PTS, VPR and OT plus the T90 response time of the PNC shall be no
greater than 20 s.L 45/128 EN Official Journal of the European Union 15.2.2019
1.4. Recommended system description
The following paragraph contains the recommended practice for measurement of particulate number. However,
any system meeting the performance specifications in paragraphs 1.2 and 1.3 of this appendix is acceptable.
Figure A4a.App5/14 is a schematic drawing of the recommended particulate sampling system.
Figure A4a.App5/14
Schematic of recommended particulate sampling system
1.4.1. Sampling system description
The particulate sampling system shall consist of a sampling probe tip in the dilution tunnel (PSP), PTT, a PCF
and a Volatile Particulate Remover (VPR) upstream of the Particulate Number Concentration measurement
(PNC) unit. The VPR shall include devices for sample dilution (particulate number diluters: PND and PND )
1 2
and particulate evaporation (Evaporation tube, ET). The sampling probe for the test gas flow shall be so
arranged within the dilution tract that a representative sample gas flow is taken from a homogeneous
air/exhaust mixture. The sum of the residence time of the system plus the T90 response time of the PNC shall
be no greater than 20 s.
1.4.2. Particulate transfer system
The PSP and PTT together comprise the PTS. The PTS conducts the sample from the dilution tunnel to the
entrance to the first particulate number diluter. The PTS shall meet the following conditions:
It shall be installed near the tunnel centre line, 10 to 20 tunnel diameters downstream of the gas inlet, facing
upstream into the tunnel gas flow with its axis at the tip parallel to that of the dilution tunnel.
It shall have an internal diameter of ≥ 8 mm.
Sample gas drawn through the PTS shall meet the following conditions:
It shall have a flow Reynolds number (Re) of < 1 700;
It shall have a residence time in the PTS of ≤ 3 seconds.15.2.2019 EN Official Journal of the European Union L 45/129
Any other sampling configuration for the PTS for which equivalent particulate penetration for particulates of
30 nm electrical mobility diameter can be demonstrated will be considered acceptable.
The OT conducting the diluted sample from the VPR to the inlet of the PNC shall have the following
properties:
It shall have an internal diameter of ≥ 4 mm;
Sample gas flow through the POT shall have a residence time of ≤ 0,8 seconds.
Any other sampling configuration for the OT for which equivalent particulate penetration for particulates of
30 nm electrical mobility diameter can be demonstrated will be considered acceptable.
1.4.3. Particulate pre-classifier
The recommended particulate pre-classifier shall be located upstream of the VPR. The pre-classifier 50 per cent
cut point particulate diameter shall be between 2,5 µm and 10 µm at the volumetric flow rate selected for
sampling particulate number emissions. The pre-classifier shall allow at least 99 per cent of the mass concen
tration of 1 µm particulates entering the pre-classifier to pass through the exit of the pre-classifier at the
volumetric flow rate selected for sampling particulate number emissions.
1.4.4. Volatile particulate remover (VPR)
The VPR shall comprise one particulate number diluter (PND ), an evaporation tube and a second diluter
1
(PND ) in series. This dilution function is to reduce the number concentration of the sample entering the
2
particulate concentration measurement unit to less than the upper threshold of the single particulate count
mode of the PNC and to suppress nucleation within the sample. The VPR shall provide an indication of
whether or not PND and the evaporation tube are at their correct operating temperatures.
1
The VPR shall achieve > 99,0 per cent vaporisation of 30 nm tetracontane (CH (CH ) CH ) particulates, with
3 238 3
an inlet concentration of ≥ 10 000 cm– 3, by means of heating and reduction of partial pressures of the
tetracontane. It shall also achieve a particulate concentration reduction factor (f) for particulates of 30 nm
r
and 50 nm electrical mobility diameters, that is no more than 30 per cent and 20 per cent respectively higher,
and no more than 5 per cent lower than that for particulates of 100 nm electrical mobility diameter for the
VPR as a whole.
1.4.4.1. First Particulate Number Dilution device (PND )
1
The first particulate number dilution device shall be specifically designed to dilute particulate number concen
tration and operate at a (wall) temperature of 150 °C - 400 °C. The wall temperature setpoint should be held at
a constant nominal operating temperature, within this range, to a tolerance of ± 10 °C and not exceed the wall
temperature of the ET (paragraph 1.4.4.2 of this appendix). The diluter should be supplied with HEPA filtered
dilution air and be capable of a dilution factor of 10 to 200 times.
1.4.4.2. Evaporation tube
The entire length of the ET shall be controlled to a wall temperature greater than or equal to that of the first
particulate number dilution device and the wall temperature held at a fixed nominal operating temperature
between 300 °C and 400 °C, to a tolerance of ± 10 °C.
1.4.4.3. Second Particulate Number Dilution device (PND )
2
PND shall be specifically designed to dilute particulate number concentration. The diluter shall be supplied
2
with HEPA filtered dilution air and be capable of maintaining a single dilution factor within a range of 10 to
30 times. The dilution factor of PND shall be selected in the range between 10 and 15 such that particulate
2
number concentration downstream of the second diluter is less than the upper threshold of the single
particulate count mode of the PNC and the gas temperature prior to entry to the PNC is < 35 °C.L 45/130 EN Official Journal of the European Union 15.2.2019
1.4.5. Particulate Number Counter (PNC)
The PNC shall meet the requirements of paragraph 1.3.4 of this appendix.
2. CALIBRATION/VALIDATION OF THE PARTICULATE SAMPLING SYSTEM (1)
2.1. Calibration of the particulate number counter
2.1.1. The Technical Service shall ensure the existence of a calibration certificate for the PNC demonstrating
compliance with a traceable standard within a 12 month period prior to the emissions test.
2.1.2. The PNC shall also be recalibrated and a new calibration certificate issued following any major maintenance.
2.1.3. Calibration shall be traceable to a standard calibration method:
(a) By comparison of the response of the PNC under calibration with that of a calibrated aerosol electrometer
when simultaneously sampling electrostatically classified calibration particulates; or
(b) By comparison of the response of the PNC under calibration with that of a second PNC which has been
directly calibrated by the above method.
In the electrometer case, calibration shall be undertaken using at least six standard concentrations spaced as
uniformly as possible across the PNC's measurement range. These points will include a nominal zero concen
tration point produced by attaching HEPA filters of at least class H13 of EN 1822:2008, or equivalent
performance, to the inlet of each instrument. With no calibration factor applied to the PNC under calibration,
measured concentrations shall be within ± 10 per cent of the standard concentration for each concentration
used, with the exception of the zero point, otherwise the PNC under calibration shall be rejected. The gradient
from a linear regression of the two data sets shall be calculated and recorded. A calibration factor equal to the
reciprocal of the gradient shall be applied to the PNC under calibration. Linearity of response is calculated as
the square of the Pearson product moment correlation coefficient (R2) of the two data sets and shall be equal
to or greater than 0,97. In calculating both the gradient and R2 the linear regression shall be forced through
the origin (zero concentration on both instruments).
In the reference PNC case, calibration shall be undertaken using at least six standard concentrations across the
PNC's measurement range. At least three points shall be at concentrations below 1 000 cm– 3, the remaining
concentrations shall be linearly spaced between 1 000 cm– 3 and the maximum of the PNC's range in single
particulate count mode. These points will include a nominal zero concentration point produced by attaching
HEPA filters of at least class H13 of EN 1822:2008, or equivalent performance, to the inlet of each instrument.
With no calibration factor applied to the PNC under calibration, measured concentrations shall be within
± 10 per cent of the standard concentration for each concentration, with the exception of the zero point,
otherwise the PNC under calibration shall be rejected. The gradient from a linear regression of the two data
sets shall be calculated and recorded. A calibration factor equal to the reciprocal of the gradient shall be
applied to the PNC under calibration. Linearity of response is calculated as the square of the Pearson product
moment correlation coefficient (R2) of the two data sets and shall be equal to or greater than 0,97. In
calculating both the gradient and R2 the linear regression shall be forced through the origin (zero concentration
on both instruments).
2.1.4. Calibration shall also include a check, against the requirements in paragraph 1.3.4.8 of this appendix, on the
PNC's detection efficiency with particulates of 23 nm electrical mobility diameter. A check of the counting
efficiency with 41 nm particulates is not required.
2.2. Calibration/Validation of the volatile particulate remover
2.2.1. Calibration of the VPR's particulate concentration reduction factors across its full range of dilution settings, at
the instrument's fixed nominal operating temperatures, shall be required when the unit is new and following
any major maintenance. The periodic validation requirement for the VPR's particulate concentration reduction
factor is limited to a check at a single setting, typical of that used for measurement on diesel particulate filter
equipped vehicles. The Technical Service shall ensure the existence of a calibration or validation certificate for
the volatile particulate remover within a 6 month period prior to the emissions test. If the volatile particulate
remover incorporates temperature monitoring alarms a 12 month validation interval shall be permissible.
(1) Example calibration/validation methods are available at http://www.unece.org/trans/main/wp29/wp29wgs/wp29grpe/pmpFCP.html.15.2.2019 EN Official Journal of the European Union L 45/131
The VPR shall be characterised for particulate concentration reduction factor with solid particulates of 30 nm,
50 nm and 100 nm electrical mobility diameter. Particulate concentration reduction factors (f(d)) for
r
particulates of 30 nm and 50 nm electrical mobility diameters shall be no more than 30 per cent and
20 per cent higher respectively, and no more than 5 per cent lower than that for particulates of 100 nm
electrical mobility diameter. For the purposes of validation, the mean particulate concentration reduction factor
shall be within ± 10 per cent of the mean particulate concentration reduction factor (f ) determined during the
r
primary calibration of the VPR.
2.2.2. The test aerosol for these measurements shall be solid particulates of 30, 50 and 100 nm electrical mobility
diameter and a minimum concentration of 5 000 particulates cm– 3 at the VPR inlet. Particulate concentrations
shall be measured upstream and downstream of the components.
The particulate concentration reduction factor at each particulate size (f(d)) shall be calculated as follows;
r i
N ðdÞ
fðdÞ¼ in i
r i N ðdÞ
out i
Where:
N (d) = upstream particulate number concentration for particulates of diameter d;
in i i
N (d) = downstream particulate number concentration for particulates of diameter d; and
out i i
d = particulate electrical mobility diameter (30, 50 or 100 nm).
i
N (d) and N (d) shall be corrected to the same conditions.
in i out i
The mean particulate concentration reduction (f ) at a given dilution setting shall be calculated as follows;
r
fð30nmÞþfð50nmÞþfð100nmÞ
f ¼ r r r
r 3
It is recommended that the VPR is calibrated and validated as a complete unit.
2.2.3. The Technical Service shall ensure the existence of a validation certificate for the VPR demonstrating effective
volatile particulate removal efficiency within a 6 month period prior to the emissions test. If the volatile
particulate remover incorporates temperature monitoring alarms a 12 month validation interval shall be
permissible. The VPR shall demonstrate greater than 99,0 per cent removal of tetracontane (CH (CH ) CH )
3 238 3
particulates of at least 30 nm electrical mobility diameter with an inlet concentration of ≥ 10 000 cm– 3 when
operated at its minimum dilution setting and manufacturers recommended operating temperature.
2.3. Particulate number system check procedures
2.3.1. Prior to each test, the particulate counter shall report a measured concentration of less than 0,5 particulates cm– 3
when a HEPA filter of at least class H13 of EN 1822:2008, or equivalent performance, is attached to the inlet
of the entire particulate sampling system (VPR and PNC).
2.3.2. On a monthly basis, the flow into the particulate counter shall report a measured value within 5 per cent of
the particulate counter nominal flow rate when checked with a calibrated flow meter.L 45/132 EN Official Journal of the European Union 15.2.2019
2.3.3. Each day, following the application of a HEPA filter of at least class H13 of EN 1822:2008, or equivalent
performance, to the inlet of the particulate counter, the particulate counter shall report a concentration
of ≤ 0,2 cm– 3. Upon removal of this filter, the particulate counter shall show an increase in measured concen
tration to at least 100 particulates cm– 3 when challenged with ambient air and a return to ≤ 0,2 cm– 3 on
replacement of the HEPA filter.
2.3.4. Prior to the start of each test, it shall be confirmed that the measurement system indicates that the evaporation
tube, where featured in the system, has reached its correct operating temperature.
2.3.5. Prior to the start of each test, it shall be confirmed that the measurement system indicates that the diluter
PND has reached its correct operating temperature.
115.2.2019 EN Official Journal of the European Union L 45/133
APPENDIX 6
VERIFICATION OF SIMULATED INERTIA
1. OBJECT
The method described in this appendix makes it possible to check that the simulated total inertia of the
dynamometer is carried out satisfactorily in the running phase of the operating cycle. The manufacturer of the
dynamometer shall specify a method for verifying the specifications according to paragraph 3 of this appendix.
2. PRINCIPLE
2.1. Drawing-up working equations
Since the dynamometer is subjected to variations in the rotating speed of the roller(s), the force at the surface
of the roller(s) can be expressed by the formula:
F = I · γ = I · γ + F
M 1
Where:
F = force at the surface of the roller(s),
I = total inertia of the dynamometer (equivalent inertia of the vehicle: see Table A4a/3 of this annex),
I = inertia of the mechanical masses of the dynamometer,
M
γ = tangential acceleration at roller surface,
F = inertia force.
1
Note: An explanation of this formula with reference to dynamometers with mechanically simulated inertia is
appended.
Thus, total inertia is expressed as follows:
I = I + F /γ
m 1
Where:
I can be calculated or measured by traditional methods,
m
F can be measured on the dynamometer,
1
γ can be calculated from the peripheral speed of the rollers.
The total inertia (I) will be determined during an acceleration or deceleration test with values higher than or
equal to those obtained on an operating cycle.
2.2. Specification for the calculation of total inertia
The test and calculation methods shall make it possible to determine the total inertia I with a relative
error (ΔI/I) of less than ± 2 per cent.
3. SPECIFICATION
3.1. The mass of the simulated total inertia I shall remain the same as the theoretical value of the equivalent inertia
(see Table A4a/3) within the following limits:
3.1.1. ± 5 per cent of the theoretical value for each instantaneous value;
3.1.2. ± 2 per cent of the theoretical value for the average value calculated for each sequence of the cycle.
The limit given in paragraph 3.1.1 of this appendix is brought to ± 50 per cent for one second when starting
and, for vehicles with manual transmission, for two seconds during gear changes.L 45/134 EN Official Journal of the European Union 15.2.2019
4. VERIFICATION PROCEDURE
4.1. Verification is carried out during each test throughout the cycle defined in paragraph 6.1 of this annex to this
Regulation.
4.2. However, if the requirements of paragraph 3 above are met, with instantaneous accelerations which are at least
three times greater or smaller than the values obtained in the sequences of the theoretical cycle, the verification
described above will not be necessary.15.2.2019 EN Official Journal of the European Union L 45/135
APPENDIX 7
MEASUREMENT OF VEHICLE ROAD LOAD
Resistance to progress of a vehicle measurement method on the road simulation on a chassis
dynamometer
1. OBJECT OF THE METHODS
The object of the methods defined below is to measure the resistance to progress of a vehicle at stabilized
speeds on the road and to simulate this resistance on a dynamometer, in accordance with the conditions set
out in paragraph 6.2.1 of this annex to this Regulation.
2. DEFINITION OF THE ROAD
The road shall be level and sufficiently long to enable the measurements specified in this appendix to be
made. The slope shall be constant to within ± 0,1 per cent and shall not exceed 1,5 per cent.
3. ATMOSPHERIC CONDITIONS
3.1. Wind
Testing shall be limited to wind speeds averaging less than 3 m/s with peak speeds of less than 5 m/s. In
addition, the vector component of the wind speed across the test road shall be less than 2 m/s. Wind
velocity shall be measured 0,7 m above the road surface.
3.2. Humidity
The road shall be dry.
3.3. Pressure and Temperature
Air density at the time of the test shall not deviate by more than ± 7,5 per cent from the reference
conditions, P = 100 kPa and T = 293,2 K.
4. VEHICLE PREPARATION (1)
4.1. Selection of the test vehicle
If not all variants of a vehicle type are measured, the following criteria for the selection of the test vehicle
shall be used.
4.1.1. Body
If there are different types of body, the test shall be performed on the least aerodynamic body. The
manufacturer shall provide the necessary data for the selection.
4.1.2 Tyres
The choice of tyres shall be based on the rolling resistance. The tyres with the highest rolling resistance shall
be chosen, measured according to ISO 28580.
If there are more than three tyre rolling resistances, the tyre with the second highest rolling resistance shall
be chosen.
The rolling resistance characteristics of the tyres fitted to production vehicles shall reflect those of the tyres
used for type approval.
4.1.3. Testing mass
The testing mass shall be the reference mass of the vehicle with the highest inertia range.
(1) For HEV, and until uniform technical provisions have been established, the manufacturer will agree with the Technical Service
concerning the status of the vehicle when performing the test as defined in this appendix.L 45/136 EN Official Journal of the European Union 15.2.2019
4.1.4. Engine
The test vehicle shall have the largest heat exchanger(s).
4.1.5. Transmission
A test shall be carried out with each type of the following transmission:
Front-wheel drive,
Rear-wheel drive,
Full-time 4 × 4,
Part-time 4 × 4,
Automatic gearbox,
Manual gearbox.
4.2. Running-in
The vehicle shall be in normal running order and adjustment after having been run-in for at least 3 000 km.
The tyres shall be run-in at the same time as the vehicle or have a tread depth within 90 and 50 per cent of
the initial tread depth.
4.3. Verifications
The following checks shall be made in accordance with the manufacturer's specifications for the use
considered:
Wheels, wheel trims, tyres (make, type, pressure), front axle geometry, brake adjustment (elimination of
parasitic drag), lubrication of front and rear axles, adjustment of the suspension and vehicle level, etc.
4.4. Preparation for the test
4.4.1. The vehicle shall be loaded to its reference mass. The level of the vehicle shall be that obtained when the
centre of gravity of the load is situated midway between the ‘R’ points of the front outer seats and on
a straight line passing through those points.
4.4.2. In the case of road tests, the windows of the vehicle shall be closed. Any covers of air climatisation systems,
headlamps, etc. shall be in the non-operating position.
4.4.3. The vehicle shall be clean.
4.4.4. Immediately prior to the test, the vehicle shall be brought to normal running temperature in an appropriate
manner.
5. METHODS
5.1. Energy variation during coast-down method
5.1.1. On the road
5.1.1.1. Test equipment and error
Time shall be measured to an error lower than ± 0,1 s.
Speed shall be measured to an error lower than ± 2 per cent.
During the test, elapsed time and vehicle speed shall be measured and recorded at a minimum frequency of
1 Hz.
5.1.1.2. Test procedure
5.1.1.2.1. Accelerate the vehicle to a speed 10 km/h higher than the chosen test speed v.
5.1.1.2.2. Place the gearbox in ‘neutral’ position.15.2.2019 EN Official Journal of the European Union L 45/137
5.1.1.2.3. For each reference speed point v, measure the time taken (ΔT ) for the vehicle to decelerate from speed
j aj
v = v + Δv km/h to v = v – Δv km/h
2 j 1 j
where:
Δv is equal to 5 km/h
v is each of the reference speed [km/h] points as indicated in the following table:
j
20 30 40 50 60 70 80 90 100 110 120
5.1.1.2.4. Perform the same test in the opposite direction: ΔT
bj
5.1.1.2.5. These measurements shall be carried out in opposite directions until, for each reference speed v, a minimum
j
of three consecutive pairs of measurements have been obtained which satisfy the statistical accuracy p, in
j
per cent, as defined below.
p
¼t p� ffis ffiffij�100
�3 per cent
j n ΔT
j
where:
p is the statistical accuracy of the measurements performed at reference speed v;
j j
n is the number of pairs of measurements;
ΔT is the mean coast down time at reference speed v in seconds, given by the equation:
j j
X
1 n
ΔT ¼ ΔT
j n i¼1 ji
where ΔT is the harmonic mean coast down time of the ith pair of measurements at velocity v,
ji j
seconds [s], given by the equation:
ΔTji ¼ ! 2 !
1 1
þ
ΔT ΔT
aji bji
where ΔT and ΔT are the coast down times of the ith measurement at reference speed v, in
aji bji j
seconds [s], in opposite directions a and b, respectively;
s is the standard deviation, in seconds [s], defined by:
j
rffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi
X
s ¼ 1 n ðΔT − ΔTÞ2
j n − 1 i¼1 ji j
t is a coefficient given in the following table:
Coefficient t as function of n
pffiffiffi pffiffiffi
n t t= n n t t= n
3 4,3 2,48 10 2,2 0,73
4 3,2 1,60 11 2,2 0,66
5 2,8 1,25 12 2,2 0,64
6 2,6 1,06 13 2,2 0,61
7 2,5 0,94 14 2,2 0,59
8 2,4 0,85 15 2,2 0,57
9 2,3 0,77L 45/138 EN Official Journal of the European Union 15.2.2019
5.1.1.2.6. If during a measurement in one direction any external factor or driver action occurs which influences the
road load test, that measurement and the corresponding measurement in the opposite direction shall be
rejected.
5.1.1.2.7. The total resistances, F and F , at reference speed v in directions a and b, are determined by the equations:
aj bj j
1 2�Δv
F ¼ �M�
aj 3,6 ΔT
aj
and
1 2�Δv
F ¼ �M�
bj 3,6 ΔT
bj
where:
F is the total resistance at reference speed, j, in direction a, [N];
aj
F is the total resistance at reference speed, j, in direction b, [N];
bj
M is the reference mass, [kg];
Δv is the delta speed around v, taken according to 5.1.1.2.3.
j
ΔT and ΔT are the mean coast down times in directions a and b, respectively, corresponding to
aj bj
reference speed v, in seconds [s], given by the following equations:
j
X
1 n
ΔT ¼ ΔT
aj n i¼1 aji
X
1 n
and ΔT ¼ ΔT
bj n i¼1 bji
5.1.1.2.8. The following equation shall be used to compute the average total resistance:
ðF þF Þ
F ¼ aj bj
j 2
5.1.1.2.9. For each reference speed v calculate the power (P), [kW], by the formula:
j j
P = (F · v)/1 000
j j j
where:
F is the average resistance at reference speed, j, [N];
j
v is the reference speed, j, [m/s], defined in 5.1.1.2.3.
j
5.1.1.2.10. The complete power curve (P), [kW], as a function of speed, [km/h], shall be calculated with a least squares
regression analysis.
5.1.1.2.11. The power (P) determined on the track shall be corrected to the reference ambient conditions as follows:
P = K · P
Corrected Measured
R � � R ðρ Þ
K¼ R� 1þK ðt − t Þ þ AERO� 0
R R 0 R ρ
T T
Where:
R = rolling resistance at speed V,
R
R = aerodynamic drag at speed V,
AERO
R = total driving resistance = R + R ,
T R AERO
K = temperature correction factor of rolling resistance, taken to be equal to 8,64 × 10– 3/°C, or the
R
manufacturer's correction factor that is approved by the authority,15.2.2019 EN Official Journal of the European Union L 45/139
t = road test ambient temperature in °C,
t = reference ambient temperature = 20 °C,
0
ρ = air density at the test conditions,
ρ = air density at the reference conditions (20 °C, 100 kPa).
0
The ratios R /R and R /R shall be specified by the vehicle manufacturer based on the data normally
R T AERO T
available to the company.
If these values are not available, subject to the agreement of the manufacturer and the Technical Service
concerned, the figures for the rolling/ total resistance given by the following formula may be used:
R
R ¼a�Mþb
R
T
Where:
M = vehicle mass in kg and for each speed the coefficients a and b are shown in the following table:
V (km/h) a b
20 7,24 · 10– 5 0,82
40 1,59 ·10– 4 0,54
60 1,96 · 10– 4 0,33
80 1,85 · 10– 4 0,23
100 1,63 · 10– 4 0,18
120 1,57 · 10– 4 0,14
5.1.2. On the dynamometer
5.1.2.1. Measurement equipment and accuracy
The equipment shall be identical to that used on the road.
5.1.2.2. Test procedure
5.1.2.2.1. Install the vehicle on the test dynamometer.
5.1.2.2.2. Adjust the tyre pressure (cold) of the driving wheels as required by the dynamometer.
5.1.2.2.3. Adjust the equivalent inertia of the dynamometer.
5.1.2.2.4. Bring the vehicle and dynamometer to operating temperature in a suitable manner.
5.1.2.2.5. Carry out the operations specified in paragraph 5.1.1.2 of this appendix (with the exception of
paragraph 5.1.1.2.4 of this appendix), replacing M by I in the formula set out in paragraph 5.1.1.2.7 of this
appendix.
5.1.2.2.6. Adjust the brake to reproduce the corrected power (paragraph 5.1.1.2.11 of this appendix) and to take into
account the difference between the vehicle mass (M) on the track and the equivalent inertia test mass (I) to
be used. This may be done by calculating the mean corrected road coast down time from V to V and
2 1
reproducing the same time on the dynamometer by the following relationship:
T I
T ¼ measured�
corrected K M
K = value specified in paragraph 5.1.1.2.11 above.
5.1.2.2.7. The power P to be absorbed by the dynamometer shall be determined in order to enable the same power
a
(paragraph 5.1.1.2.11 of this appendix) to be reproduced for the same vehicle on different days.L 45/140 EN Official Journal of the European Union 15.2.2019
5.2. Torque measurements method at constant speed
5.2.1. On the road
5.2.1.1. Measurement equipment and error
Torque measurement shall be carried out with an appropriate measuring device accurate to within
± 2 per cent.
Speed measurement shall be accurate to within ± 2 per cent.
5.2.1.2. Test procedure
5.2.1.2.1. Bring the vehicle to the chosen stabilized speed V.
5.2.1.2.2. Record the torque C and speed over a period of at least 20 seconds. The accuracy of the data recording
t
system shall be at least ± 1 Nm for the torque and ± 0,2 km/h for the speed.
5.2.1.2.3. Differences in torque C and speed relative to time shall not exceed 5 per cent for each second of the
t
measurement period.
5.2.1.2.4. The torque C is the average torque derived from the following formula:
t1
ZtþΔt
1
C ¼ CðtÞdt
t1 Δt
t
5.2.1.2.5. The test shall be carried out three times in each direction. Determine the average torque from these six
measurements for the reference speed. If the average speed deviates by more than 1 km/h from the reference
speed, a linear regression shall be used for calculating the average torque.
5.2.1.2.6. Determine the average of these two torques C and C , i.e. C.
t1 t2 t
5.2.1.2.7. The average torque CT determined on the track shall be corrected to the reference ambient conditions as
follows:
C = K · C
Tcorrected Tmeasured
Where K has the value specified in paragraph 5.1.1.2.11 of this appendix.
5.2.2. On the dynamometer
5.2.2.1. Measurement equipment and error
The equipment shall be identical to that used on the road.
5.2.2.2. Test procedure
5.2.2.2.1. Perform the operations specified in paragraphs 5.1.2.2.1 to 5.1.2.2.4 of this appendix.
5.2.2.2.2. Perform the operations specified in paragraphs 5.2.1.2.1 to 5.2.1.2.4 of this appendix.
5.2.2.2.3. Adjust the power absorption unit to reproduce the corrected total track torque indicated in
paragraph 5.2.1.2.7 of this appendix.
5.2.2.2.4. Proceed with the same operations as in paragraph 5.1.2.2.7 of this appendix, for the same purpose.15.2.2019 EN Official Journal of the European Union L 45/141
ANNEX 5
TYPE II TEST
(Carbon monoxide emission test at idling speed)
1. INTRODUCTION
This annex describes the procedure for the Type II test defined in paragraph 5.3.2 of this Regulation.
2. CONDITIONS OF MEASUREMENT
2.1. The fuel shall be the reference fuel, specifications for which are given in Annexes 10 and 10a to this
Regulation.
2.2. During the test, the environmental temperature shall be between 293 and 303 K (20 and 30 °C). The engine
shall be warmed up until all temperatures of cooling and lubrication means and the pressure of lubrication
means have reached equilibrium.
2.2.1. Vehicles that are fuelled either with petrol or with LPG or NG/biomethane shall be tested with the reference
fuel(s) used for the Type I test.
2.3. In the case of vehicles with manually-operated or semi-automatic-shift gearboxes, the test shall be carried out
with the gear lever in the ‘neutral’ position and with the clutch engaged.
2.4. In the case of vehicles with automatic-shift gearboxes, the test shall be carried out with the gear selector in
either the ‘neutral’ or the ‘parking’ position.
2.5. Components for adjusting the idling speed
2.5.1. Definition
For the purposes of this Regulation, ‘components for adjusting the idling speed’ means controls for changing the
idling conditions of the engine which may be easily operated by a mechanic using only the tools described in
paragraph 2.5.1.1 of this annex. In particular, devices for calibrating fuel and air flows are not considered as
adjustment components if their setting requires the removal of the set-stops, an operation which cannot
normally be performed except by a professional mechanic.
2.5.1.1. Tools which may be used to control components for adjusting the idling speed: screwdrivers (ordinary or
cross-headed), spanners (ring, open-end or adjustable), pliers, Allen keys.
2.5.2. Determination of measurement points
2.5.2.1. A measurement at the setting in accordance with the conditions fixed by the manufacturer is performed first;
2.5.2.2. For each adjustment component with a continuous variation, a sufficient number of characteristic positions
shall be determined.
2.5.2.3. The measurement of the carbon-monoxide content of exhaust gases shall be carried out for all the possible
positions of the adjustment components, but for components with a continuous variation only the positions
defined in paragraph 2.5.2.2 of this annex shall be adopted.
2.5.2.4. The Type II test shall be considered satisfactory if one or both of the two following conditions is met:
2.5.2.4.1. None of the values measured in accordance with paragraph 2.5.2.3 of this annex exceed the limit values;
2.5.2.4.2. The maximum content obtained by continuously varying one of the adjustment components while the other
components are kept stable does not exceed the limit value, this condition being met for the various
combinations of adjustment components other than the one which was varied continuously.
2.5.2.5. The possible positions of the adjustment components shall be limited:
2.5.2.5.1. On the one hand, by the larger of the following two values: the lowest idling speed which the engine can
reach; the speed recommended by the manufacturer, minus 100 revolutions per minute;L 45/142 EN Official Journal of the European Union 15.2.2019
2.5.2.5.2. On the other hand, by the smallest of the following three values:
The highest speed the engine can attain by activation of the idling speed components;
The speed recommended by the manufacturer, plus 250 revolutions per minute;
The cut-in speed of automatic clutches.
2.5.2.6. In addition, settings incompatible with correct running of the engine shall not be adopted as measurement
settings. In particular, when the engine is equipped with several carburettors all the carburettors shall have
the same setting.
3. SAMPLING OF GASES
3.1. The sampling probe shall be inserted to a depth of at least 300 mm into the pipe connecting the exhaust
with the sampling bag and as close as possible to the exhaust.
3.2. The concentration in CO (C ) and CO (C ) shall be determined from the measuring instrument readings
CO 2 CO2
or recordings, by use of appropriate calibration curves.
3.3. The corrected concentration for carbon monoxide regarding four-stroke engines is:
15
C ¼C (per cent vol.)
CO corr COC þC
CO CO2
3.4. The concentration in C (see paragraph 3.2. of this annex) measured according to the formulae contained in
CO
paragraph 3.3 of this annex need not be corrected if the total of the concentrations measured (C + C ) is
CO CO2
for four-stroke engines at least:
(a) For petrol 15 per cent
(b) For LPG 13,5 per cent
(c) For NG/biomethane 11,5 per cent.15.2.2019 EN Official Journal of the European Union L 45/143
ANNEX 6
TYPE III TEST
(Verifying emissions of crankcase gases)
1. INTRODUCTION
This annex describes the procedure for the Type III Test defined in paragraph 5.3.3 of this Regulation.
2. GENERAL PROVISIONS
2.1. The Type III test shall be carried out on a vehicle with positive-ignition engine, which has been, subjected to the
Type I and the Type II test, as applicable.
2.2. The engines tested shall include leak-proof engines other than those so designed that even a slight leak may cause
unacceptable operating faults (such as flat-twin engines).
3. TEST CONDITIONS
3.1. Idling shall be regulated in conformity with the manufacturer's recommendations.
3.2. The measurement shall be performed in the following three sets of conditions of engine operation:
Condition number Vehicle speed (km/h)
1 Idling
2 50 ± 2 (in 3rd gear or ‘drive’)
3 50 ± 2 (in 3rd gear or ‘drive’)
Condition number Power absorbed by the brake
1 Nil
2 That corresponding to the setting for Type I test at 50 km/h
3 That for conditions No 2, multiplied by a factor of 1,7
4. TEST METHOD
4.1. For the operation conditions as listed in paragraph 3.2 of this annex, reliable function of the crankcase
ventilation system shall be checked.
5. METHOD OF VERIFICATION OF THE CRANKCASE VENTILATION SYSTEM
5.1. The engine's apertures shall be left as found.
5.2. The pressure in the crankcase shall be measured at an appropriate location. It shall be measured at the dip-stick
hole with an inclined-tube manometer.
5.3. The vehicle shall be deemed satisfactory if, in every condition of measurement defined in paragraph 3.2 of this
annex, the pressure measured in the crankcase does not exceed the atmospheric pressure prevailing at the time of
measurement.
5.4. For the test by the method described above, the pressure in the intake manifold shall be measured to within
± 1 kPa.
5.5. The vehicle speed as indicated at the dynamometer shall be measured to within ± 2 km/h.
5.6. The pressure measured in the crankcase shall be measured to within ± 0,01 kPa.
5.7. If in one of the conditions of measurement defined in paragraph 3.2 of this annex, the pressure measured in the
crankcase exceeds the atmospheric pressure, an additional test as defined in paragraph 6 of this annex shall be
performed if so requested by the manufacturer.L 45/144 EN Official Journal of the European Union 15.2.2019
6. ADDITIONAL TEST METHOD
6.1. The engine's apertures shall be left as found.
6.2. A flexible bag impervious to crankcase gases and having a capacity of approximately five litres shall be connected
to the dipstick hole. The bag shall be empty before each measurement.
6.3. The bag shall be closed before each measurement. It shall be opened to the crankcase for five minutes for each
condition of measurement prescribed in paragraph 3.2 of this annex.
6.4. The vehicle shall be deemed satisfactory if, in every condition of measurement defined in paragraph 3.2 of this
annex, no visible inflation of the bag occurs.
6.5. Remark
6.5.1. If the structural layout of the engine is such that the test cannot be performed by the methods described in
paragraphs 6.1 to 6.4 of this annex, the measurements shall be effected by that method modified as follows:
6.5.2. Before the test, all apertures other than that required for the recovery of the gases shall be closed;
6.5.3. The bag shall be placed on a suitable take-off which does not introduce any additional loss of pressure and is
installed on the recycling circuit of the device directly at the engine-connection aperture (see diagram below).
Type III test15.2.2019 EN Official Journal of the European Union L 45/145
ANNEX 7
TYPE IV TEST
(Determination of evaporative emissions from vehicles with positive ignition engines)
1. INTRODUCTION
This annex describes the procedure of the Type IV test according to paragraph 5.3.4 of this Regulation.
This procedure describes a method for the determination of the loss of hydrocarbons by evaporation from
the fuel systems of vehicles with positive ignition engines.
2. DESCRIPTION OF TEST
The evaporative emissions test (see Figure A7/1) is designed to determine hydrocarbon evaporative emissions
as a consequence of diurnal temperatures fluctuation, hot soaks during parking, and urban driving. The test
consists of these phases:
2.1. Test preparation including an urban (Part One) and extra-urban (Part Two) driving cycle,
2.2. Hot soak loss determination,
2.3. Diurnal loss determination.
Mass emissions of hydrocarbons from the hot soak and the diurnal loss phases are added up to provide an
overall result for the test.
3. VEHICLE AND FUEL
3.1. Vehicle
3.1.1. The vehicle shall be in good mechanical condition and have been run in and driven at least 3 000 km before
the test. The evaporative emission control system shall be connected and have been functioning correctly
over this period and the carbon canister(s) shall have been subject to normal use, neither undergoing
abnormal purging nor abnormal loading.
3.2. Fuel
3.2.1. The appropriate reference fuel shall be used, as defined in Annex 10 or Annex 10a to this Regulation.
4. TEST EQUIPMENT FOR EVAPORATIVE TEST
4.1. Chassis dynamometer
The chassis dynamometer shall meet the requirements of Appendix 1 to Annex 4a to this Regulation.
4.2. Evaporative emission measurement enclosure
The evaporative emission measurement enclosure shall be a gas-tight rectangular measuring chamber able to
contain the vehicle under test. The vehicle shall be accessible from all sides and the enclosure when sealed
shall be gas-tight in accordance with Appendix 1 to this annex. The inner surface of the enclosure shall be
impermeable and non-reactive to hydrocarbons. The temperature conditioning system shall be capable of
controlling the internal enclosure air temperature to follow the prescribed temperature versus time profile
throughout the test, and an average tolerance of 1 K over the duration of the test.
The control system shall be tuned to provide a smooth temperature pattern that has a minimum of
overshoot, hunting, and instability about the desired long-term ambient temperature profile. Interior surface
temperatures shall not be less than 278 K (5 °C) nor more than 328 K (55 °C) at any time during the diurnal
emission test.L 45/146 EN Official Journal of the European Union 15.2.2019
Wall design shall be such as to promote good dissipation of heat. Interior surface temperatures shall not be
below 293 K (20 °C), nor above 325 K (52 °C) for the duration of the hot soak rest.
To accommodate the volume changes due to enclosure temperature changes, either a variable-volume or
fixed-volume enclosure may be used.
4.2.1. Variable-volume enclosure
The variable-volume enclosure expands and contracts in response to the temperature change of the air mass
in the enclosure. Two potential means of accommodating the internal volume changes are movable panel(s),
or a bellows design, in which an impermeable bag or bags inside the enclosure expand(s) and contracts(s) in
response to internal pressure changes by exchanging air from outside the enclosure. Any design for volume
accommodation shall maintain the integrity of the enclosure as specified in Appendix 1 to this annex over
the specified temperature range.
Any method of volume accommodation shall limit the differential between the enclosure internal pressure
and the barometric pressure to a maximum value of ± 5 kPa.
The enclosure shall be capable of latching to a fixed volume. A variable volume enclosure shall be capable of
accommodating a + 7 per cent change from its ‘nominal volume’ (see paragraph 2.1.1 of Appendix 1 to this
annex,), taking into account temperature and barometric pressure variation during testing.
4.2.2. Fixed-volume enclosure
The fixed-volume enclosure shall be constructed with rigid panels that maintain a fixed enclosure volume,
and meet the requirements below.
4.2.2.1. The enclosure shall be equipped with an outlet flow stream that withdraws air at a low, constant rate from
the enclosure throughout the test. An inlet flow stream may provide make-up air to balance the outgoing
flow with incoming ambient air. Inlet air shall be filtered with activated carbon to provide a relatively
constant hydrocarbon level. Any method of volume accommodation shall maintain the differential between
the enclosure internal pressure and the barometric pressure between 0 and – 5 kPa.
4.2.2.2. The equipment shall be capable of measuring the mass of hydrocarbon in the inlet and outlet flow streams
with a resolution of 0,01 gram. A bag sampling system may be used to collect a proportional sample of the
air withdrawn from and admitted to the enclosure. Alternatively, the inlet and outlet flow streams may be
continuously analysed using an on-line FID analyser and integrated with the flow measurements to provide
a continuous record of the mass hydrocarbon removal.15.2.2019 EN Official Journal of the European Union L 45/147
Figure A7/1
Determination of evaporative emissions
3 000 km run-in period (no excessive purge/load)
Ageing of canister(s) verified
Steam-clean of vehicle (if necessary)
Notes:
1. Evaporative emission control families - details clarified.
2. Exhaust emissions may be measured during Type I test drive but these are not used for legislative
purposes. Exhaust emission legislative test remains separate.
4.3. Analytical systems
4.3.1. Hydrocarbon analyser
4.3.1.1. The atmosphere within the chamber is monitored using a hydrocarbon detector of the FID type. Sample gas
shall be drawn from the mid-point of one side wall or roof of the chamber and any bypass flow shall be
returned to the enclosure, preferably to a point immediately downstream of the mixing fan.L 45/148 EN Official Journal of the European Union 15.2.2019
4.3.1.2. The hydrocarbon analyser shall have a response time to 90 per cent of final reading of less than
1,5 seconds. Its stability shall be better than 2 per cent of full scale at zero and at 80 ± 20 per cent of full
scale over a 15-minute period for all operational ranges.
4.3.1.3. The repeatability of the analyser expressed as one standard deviation shall be better than ± 1 per cent of full
scale deflection at zero and at 80 ± 20 per cent of full scale on all ranges used.
4.3.1.4. The operational ranges of the analyser shall be chosen to give best resolution over the measurement,
calibration and leak checking procedures.
4.3.2. Hydrocarbon analyser data recording system
4.3.2.1. The hydrocarbon analyser shall be fitted with a device to record electrical signal output either by strip chart
recorder or other data processing system at a frequency of at least once per minute. The recording system
shall have operating characteristics at least equivalent to the signal being recorded and shall provide
a permanent record of results. The record shall show a positive indication of the beginning and end of the
hot soak or diurnal emission test (including beginning and end of sampling periods along with the time
elapsed between start and completion of each test).
4.4. Fuel tank heating (only applicable for gasoline canister load option)
4.4.1. The fuel in the vehicle tank(s) shall be heated by a controllable source of heat; for example a heating pad of
2 000 W capacity is suitable. The heating system shall apply heat evenly to the tank walls beneath the level
of the fuel so as not to cause local overheating of the fuel. Heat shall not be applied to the vapour in the
tank above the fuel.
4.4.2. The tank heating device shall make it possible to heat the fuel in the tank evenly by 14 K from 289 K (16 °C)
within 60 minutes, with the temperature sensor position as in paragraph 5.1.1 of this annex. The heating
system shall be capable of controlling the fuel temperature to ± 1,5 K of the required temperature during the
tank heating process.
4.5. Temperature recording
4.5.1. The temperature in the chamber is recorded at two points by temperature sensors which are connected so as
to show a mean value. The measuring points are extended approximately 0,1 m into the enclosure from the
vertical centre line of each side wall at a height of 0,9 ± 0,2 m.
4.5.2. The temperatures of the fuel tank(s) are recorded by means of the sensor positioned in the fuel tank as in
paragraph 5.1.1 of this annex in the case of use of the gasoline canister load option (paragraph 5.1.5 of this
annex).
4.5.3. Temperatures shall, throughout the evaporative emission measurements, be recorded or entered into a data
processing system at a frequency of at least once per minute.
4.5.4. The accuracy of the temperature recording system shall be within ± 1,0 K and the temperature shall be
capable of being resolved to ± 0,4 K.
4.5.5. The recording or data processing system shall be capable of resolving time to ± 15 seconds.
4.6. Pressure recording
4.6.1. The difference Δp between barometric pressure within the test area and the enclosure internal pressure shall,
throughout the evaporative emission measurements, be recorded or entered into a data processing system at
a frequency of at least once per minute.15.2.2019 EN Official Journal of the European Union L 45/149
4.6.2. The accuracy of the pressure recording system shall be within ± 2 kPa and the pressure shall be capable of
being resolved to ± 0,2 kPa.
4.6.3. The recording or data processing system shall be capable of resolving time to ± 15 seconds.
4.7. Fans
4.7.1. By the use of one or more fans or blowers with the Sealed Housing Evaporative Determination (SHED)
door(s) open, it shall be possible to reduce the hydrocarbons concentration in the chamber to the ambient
hydrocarbon level.
4.7.2. The chamber shall have one or more fans or blowers of like capacity 0,1 to 0,5 m3/min. with which to
thoroughly mix the atmosphere in the enclosure. It shall be possible to attain an even temperature and
hydrocarbon concentration in the chamber during measurements. The vehicle in the enclosure shall not be
subjected to a direct stream of air from the fans or blowers.
4.8. Gases
4.8.1. The following pure gases shall be available for calibration and operation:
Purified synthetic air: (purity < 1 ppm C equivalent,
1
≤ 1 ppm CO, ≤ 400 ppm CO, ≤ 0,1 ppm NO);
2
oxygen content between 18 and 21 per cent by volume.
Hydrocarbon analyser fuel gas: (40 ± 2 per cent hydrogen, and balance helium with less than 1 ppm
C equivalent hydrocarbon, less than 400 ppm CO),
1 2
Propane (C H ): 99,5 per cent minimum purity.
3 8
Butane (C H ): 98 per cent minimum purity.
4 10
Nitrogen (N ): 98 per cent minimum purity.
2
4.8.2. Calibration and span gases shall be available containing mixtures of propane (C H ) and purified synthetic air.
3 8
The true concentrations of a calibration gas shall be within 2 per cent of the stated figures. The accuracy of
the diluted gases obtained when using a gas divider shall be to within ± 2 per cent of the true value. The
concentrations specified in Appendix 1 to this annex may also be obtained by the use of a gas divider using
synthetic air as the dilutant gas.
4.9. Additional equipment
4.9.1. The absolute humidity in the test area shall be measurable to within ± 5 per cent.
5. TEST PROCEDURE
5.1. Test preparation
5.1.1. The vehicle is mechanically prepared before the test as follows:
(a) The exhaust system of the vehicle shall not exhibit any leaks;
(b) The vehicle may be steam-cleaned before the test;
(c) In the case of use of the gasoline canister load option (paragraph 5.1.5 of this annex) the fuel tank of the
vehicle shall be equipped with a temperature sensor to enable the temperature to be measured at the
mid-point of the fuel in the fuel tank when filled to 40 per cent of its capacity;L 45/150 EN Official Journal of the European Union 15.2.2019
(d) Additional fittings, adapters of devices may be fitted to the fuel system in order to allow a complete
draining of the fuel tank. For this purpose it is not necessary to modify the shell of the tank;
(e) The manufacturer may propose a test method in order to take into account the loss of hydrocarbons by
evaporation coming only from the fuel system of the vehicle.
5.1.2. The vehicle is taken into the test area where the ambient temperature is between 293 and 303 K (20 and
30 °C).
5.1.3. The ageing of the canister(s) has to be verified. This may be done by demonstrating that it has accumulated
a minimum of 3 000 km. If this demonstration is not given, the following procedure is used. In the case of
a multiple canister system each canister shall undergo the procedure separately.
5.1.3.1. The canister is removed from the vehicle. Special care shall be taken during this step to avoid damage to
components and the integrity of the fuel system.
5.1.3.2. The weight of the canister shall be checked.
5.1.3.3. The canister is connected to a fuel tank, possibly an external one, filled with reference fuel, to 40 per cent
capacity of the fuel tank(s).
5.1.3.4. The fuel temperature in the fuel tank shall be between 283 K and 287 K (10 and 14 °C).
5.1.3.5. The (external) fuel tank is heated from 288 K to 318 K (15 to 45 °C) (1 °C increase every 9 minutes).
5.1.3.6. If the canister reaches breakthrough before the temperature reaches 318 K (45 °C), the heat source shall be
turned off. Then the canister is weighed. If the canister did not reach breakthrough during the heating to
318 K (45 °C), the procedure from paragraph 5.1.3.3 of this annex shall be repeated until breakthrough
occurs.
5.1.3.7. Breakthrough may be checked as described in paragraphs 5.1.5 and 5.1.6 of this annex, or with the use of
another sampling and analytical arrangement capable of detecting the emission of hydrocarbons from the
canister at breakthrough.
5.1.3.8. The canister shall be purged with 25 ± 5 litres per minute with the emission laboratory air until 300 bed
volume exchanges are reached.
5.1.3.9. The weight of the canister shall be checked.
5.1.3.10. The steps of the procedure in paragraphs 5.1.3.4 to 5.1.3.9 of this annex shall be repeated nine times. The
test may be terminated prior to that, after not less than three ageing cycles, if the weight of the canister after
the last cycles has stabilised.
5.1.3.11. The evaporative emission canister is reconnected and the vehicle restored to its normal operating condition.
5.1.4. One of the methods specified in paragraphs 5.1.5 and 5.1.6 of this annex shall be used to precondition the
evaporative canister. For vehicles with multiple canisters, each canister shall be preconditioned separately.
5.1.4.1. Canister emissions are measured to determine breakthrough.
Breakthrough is here defined as the point at which the cumulative quantity of hydrocarbons emitted is equal
to 2 grams.
5.1.4.2. Breakthrough may be verified using the evaporative emission enclosure as described in paragraphs 5.1.5
and 5.1.6 of this annex. Alternatively, breakthrough may be determined using an auxiliary evaporative
canister connected downstream of the vehicle's canister. The auxiliary canister shall be well purged with dry
air prior to loading.15.2.2019 EN Official Journal of the European Union L 45/151
5.1.4.3. The measuring chamber shall be purged for several minutes immediately before the test until a stable
background is obtained. The chamber air mixing fan(s) shall be switched on at this time.
The hydrocarbon analyser shall be zeroed and spanned immediately before the test.
5.1.5. Canister loading with repeated heat builds to breakthrough
5.1.5.1. The fuel tank(s) of the vehicle(s) is (are) emptied using the fuel tank drain(s). This shall be done so as not to
abnormally purge or abnormally load the evaporative control devices fitted to the vehicle. Removal of the
fuel cap is normally sufficient to achieve this.
5.1.5.2. The fuel tank(s) is (are) refilled with test fuel at a temperature of 283 K to 287 K (10 to 14 °C) to
40 ± 2 per cent of the tank's normal volumetric capacity. The fuel cap(s) of the vehicle shall be fitted at this
point.
5.1.5.3. Within one hour of being refuelled the vehicle shall be placed, with the engine shut off, in the evaporative
emission enclosure. The fuel tank temperature sensor is connected to the temperature recording system.
A heat source shall be properly positioned with respect to the fuel tank(s) and connected to the temperature
controller. The heat source is specified in paragraph 4.4 of this annex. In the case of vehicles fitted with more
than one fuel tank, all the tanks shall be heated in the same way as described below. The temperatures of the
tanks shall be identical to within ± 1,5 K.
5.1.5.4. The fuel may be artificially heated to the starting diurnal temperature of 293 K (20 °C) ± 1 K.
5.1.5.5. When the fuel temperature reaches at least 292 K (19 °C), the following steps shall be taken immediately: the
purge blower shall be turned off; enclosure doors closed and sealed; and measurement initiated of the
hydrocarbon level in the enclosure.
5.1.5.6. When the fuel temperature of the fuel tank reaches 293 K (20 °C) a linear heat build of 15 K (15 °C)
begins. The fuel shall be heated in such a way that the temperature of the fuel during the heating conforms
to the function below to within ± 1,5 K. The elapsed time of the heat build and temperature rise is recorded.
T = T + 0,2333 · t
r o
Where:
T = required temperature (K),
r
T = initial temperature (K),
o
t = time from start of the tank heat build in minutes.
5.1.5.7. As soon as break-through occurs or when the fuel temperature reaches 308 K (35 °C), whichever occurs first,
the heat source is turned off, the enclosure doors unsealed and opened, and the vehicle fuel tank cap(s)
removed. If break-through has not occurred by the time the fuel temperature 308 K (35 °C), the heat source
is removed from the vehicle, the vehicle removed from the evaporative emission enclosure and the entire
procedure outlined in paragraph 5.1.7 repeated until break-through occurs.
5.1.6. Butane loading to breakthrough
5.1.6.1. If the enclosure is used for the determination of the break-through (see paragraph 5.1.4.2 of this annex) the
vehicle shall be placed, with the engine shut off, in the evaporative emission enclosure.
5.1.6.2. The evaporative emission canister shall be prepared for the canister loading operation. The canister shall not
be removed from the vehicle, unless access to it in its normal location is so restricted that loading can only
reasonably be accomplished by removing the canister from the vehicle. Special care shall be taken during this
step to avoid damage to the components and the integrity of the fuel system.L 45/152 EN Official Journal of the European Union 15.2.2019
5.1.6.3. The canister is loaded with a mixture composed of 50 per cent butane and 50 per cent nitrogen by volume
at a rate of 40 grams butane per hour.
5.1.6.4. As soon as the canister reaches breakthrough, the vapour source shall be shut off.
5.1.6.5. The evaporative emission canister shall then be reconnected and the vehicle restored to its normal operating
condition.
5.1.7. Fuel drain and refill
5.1.7.1. The fuel tank(s) of the vehicle(s) is (are) emptied using the fuel tank drain(s). This shall be done so as not to
abnormally purge or abnormally load the evaporative control devices fitted to the vehicle. Removal of the
fuel cap is normally sufficient to achieve this.
5.1.7.2. The fuel tank(s) is (are) refilled with test fuel at a temperature of between 291 ± 8 K (18 ± 8 °C) to
40 ± 2 per cent of the tank's normal volumetric capacity. The fuel cap(s) of the vehicle shall be fitted at this
point.
5.2. Preconditioning drive
5.2.1. Within one hour from the completing of canister loading in accordance with paragraphs 5.1.5 or 5.1.6 of
this annex the vehicle is placed on the chassis dynamometer and driven through one Part One and two Part
Two driving cycles of Type I test as specified in Annex 4a to this Regulation. Exhaust emissions are not
sampled during this operation.
5.3. Soak
5.3.1. Within five minutes of completing the preconditioning operation specified in paragraph 5.2.1 of this annex
the engine bonnet shall be completely closed and the vehicle driven off the chassis dynamometer and parked
in the soak area. The vehicle is parked for a minimum of 12 hours and a maximum of 36 hours. The engine
oil and coolant temperatures shall have reached the temperature of the area or within ± 3 K of it at the end
of the period.
5.4. Dynamometer test
5.4.1. After conclusion of the soak period the vehicle is driven through a complete Type I test drive as described in
Annex 4a to this Regulation (cold start urban and extra urban test). Then the engine is shut off. Exhaust
emissions may be sampled during this operation but the results shall not be used for the purpose of exhaust
emission type approval.
5.4.2. Within two minutes of completing the Type I test drive specified in paragraph 5.4.1 of this annex the vehicle
is driven a further conditioning drive consisting of one urban test cycle (hot start) of a Type I test. Then the
engine is shut off again. Exhaust emissions need not be sampled during this operation.
5.5. Hot soak evaporative emissions test
5.5.1. Before the completion of the test run the measuring chamber shall be purged for several minutes until
a stable hydrocarbon background is obtained. The enclosure mixing fan(s) shall also be turned on at this
time.
5.5.2. The hydrocarbon analyser shall be zeroed and spanned immediately prior to the test.
5.5.3. At the end of the driving cycle the engine bonnet shall be completely closed and all connections between the
vehicle and the test stand disconnected. The vehicle is then driven to the measuring chamber with
a minimum use of the accelerator pedal. The engine shall be turned off before any part of the vehicle enters
the measuring chamber. The time at which the engine is switched off is recorded on the evaporative emission
measurement data recording system and temperature recording begins. The vehicle's windows and luggage
compartments shall be opened at this stage, if not already opened.
5.5.4. The vehicle shall be pushed or otherwise moved into the measuring chamber with the engine switched off.15.2.2019 EN Official Journal of the European Union L 45/153
5.5.5. The enclosure doors are closed and sealed gas-tight within two minutes of the engine being switched off and
within seven minutes of the end of the conditioning drive.
5.5.6. The start of a 60 ± 0,5 minute hot soak period begins when the chamber is sealed. The hydrocarbon concen
tration, temperature and barometric pressure are measured to give the initial readings C , P and T for the
HCi i i
hot soak test. These figures are used in the evaporative emission calculation, paragraph 6. The ambient
temperature T of the enclosure shall not be less than 296 K and no more than 304 K during the 60-minute
hot soak period.
5.5.7. The hydrocarbon analyser shall be zeroed and spanned immediately before the end of the 60 ± 0,5 minute
test period.
5.5.8. At the end of the 60 ± 0,5 minute test period, the hydrocarbon concentration in the chamber shall be
measured. The temperature and the barometric pressure are also measured. These are the final readings C ,
HCf
P and T for the hot soak test used for the calculation in paragraph 6.
f f
5.6. Soak
5.6.1. The test vehicle shall be pushed or otherwise moved to the soak area without use of the engine and soaked
for not less than 6 hours and not more than 36 hours between the end of the hot soak test and the start of
the diurnal emission test. For at least 6 hours of this period the vehicle shall be soaked at 293 K ± 2 K
(20 °C ± 2 °C).
5.7. Diurnal test
5.7.1. The test vehicle shall be exposed to one cycle of ambient temperature according to the profile specified in
Appendix 2 to this annex with a maximum deviation of ± 2 K at any time. The average temperature
deviation from the profile, calculated using the absolute value of each measured deviation, shall not exceed
± 1 K. Ambient temperature shall be measured at least every minute. Temperature cycling begins when time
T = 0, as specified in paragraph 5.7.6 of this annex.
start
5.7.2. The measuring chamber shall be purged for several minutes immediately before the test until a stable
background is obtainable. The chamber mixing fan(s) shall also be switched on at this time.
5.7.3. The test vehicle, with the engine shut off and the test vehicle windows and luggage compartment(s) opened
shall be moved into the measuring chamber. The mixing fan(s) shall be adjusted in such a way as to maintain
a minimum air circulation speed of 8 km/h under the fuel tank of the test vehicle.
5.7.4. The hydrocarbon analyser shall be zeroed and spanned immediately before the test.
5.7.5. The enclosure doors shall be closed and gas-tight sealed.
5.7.6. Within 10 minutes of closing and sealing the doors, the hydrocarbon concentration, temperature and
barometric pressure are measured to give the initial readings C , P and T for the diurnal test. This is the
HCi i i
point where time T = 0.
start
5.7.7. The hydrocarbon analyser shall be zeroed and spanned immediately before the end of the test.
5.7.8. The end of the emission sampling period occurs 24 hours ± 6 minutes after the beginning of the initial
sampling, as specified in paragraph 5.7.6 of this annex. The time elapsed is recorded. The hydrocarbon
concentration, temperature and barometric pressure are measured to give the final readings C , P and T for
HCf f f
the diurnal test used for the calculation in paragraph 6. of this annex. This completes the evaporative
emission test procedure.L 45/154 EN Official Journal of the European Union 15.2.2019
6. CALCULATION
6.1. The evaporative emission tests described in paragraph 5 of this annex allow the hydrocarbon emissions from
the diurnal and hot soak phases to be calculated. Evaporative losses from each of these phases is calculated
using the initial and final hydrocarbon concentrations, temperatures and pressures in the enclosure, together
with the net enclosure volume. The formula below is used:
� �
C �P C �P
M ¼k�V�10 − 4 HC,f f − HC,i i þM − M
HC T T HC,out HC,i
f i
Where:
M = hydrocarbon mass in grams,
HC
M = mass of hydrocarbon exiting the enclosure, in the case of fixed-volume enclosures for diurnal
HC,out
emission testing (grams),
M = mass of hydrocarbon entering the enclosure, in the case of fixed-volume enclosures for diurnal
HC,i
emission testing (grams),
C = measured hydrocarbon concentration in the enclosure (ppm volume in C equivalent),
HC 1
V = net enclosure volume in cubic metres corrected for the volume of the vehicle, with the
windows and the luggage compartment open. If the volume of the vehicle is not determined
a volume of 1,42 m3 is subtracted,
T = ambient chamber temperature, in K,
P = barometric pressure in kPa,
H/C = hydrogen to carbon ratio,
k = 1,2 · (12 + H/C);
Where:
i = is the initial reading,
f = is the final reading,
H/C = is taken to be 2,33 for diurnal test losses,
H/C = is taken to be 2,20 for hot soak losses.
6.2. Overall results of test
The overall hydrocarbon mass emission for the vehicle is taken to be:
M = M + M
total DI HS
Where:
M = overall mass emissions of the vehicle (grams),
total
M = hydrocarbon mass emission for diurnal test (grams),
DI
M = hydrocarbon mass emission for the hot soak (grams).
HS
7. CONFORMITY OF PRODUCTION
7.1. For routine end-of-production-line testing, the holder of the approval may demonstrate compliance by
sampling vehicles which shall meet the following requirements.
7.2. Test for leakage
7.2.1. Vents to the atmosphere from the emission control system shall be isolated.
7.2.2. A pressure of 370 mm ± 10 mm of H O shall be applied to the fuel system.
215.2.2019 EN Official Journal of the European Union L 45/155
7.2.3. The pressure shall be allowed to stabilise prior to isolating the fuel system from the pressure source.
7.2.4. Following isolation of the fuel system, the pressure shall not drop by more than 50 mm of H O in five
2
minutes.
7.3. Test for venting
7.3.1. Vents to the atmosphere from the emission control shall be isolated.
7.3.2. A pressure of 370 mm ± 10 mm of H O shall be applied to the fuel system.
2
7.3.3. The pressure shall be allowed to stabilise prior to isolating the fuel system from the pressure source.
7.3.4. The venting outlets from the emission control systems to the atmosphere shall be reinstated to the
production condition.
7.3.5. The pressure of the fuel system shall drop to below 100 mm of H O in not less than 30 seconds but within
2
two minutes.
7.3.6. At the request of the manufacturer the functional capacity for venting can be demonstrated by equivalent
alternative procedure. The specific procedure should be demonstrated by the manufacturer to the Technical
Service during the type approval procedure.
7.4. Purge test
7.4.1. Equipment capable of detecting an airflow rate of 1,0 litres in one minute shall be attached to the purge inlet
and a pressure vessel of sufficient size to have negligible effect on the purge system shall be connected via
a switching valve to the purge inlet, or alternatively.
7.4.2. The manufacturer may use a flow meter of his own choosing, if acceptable to the Type Approval Authority.
7.4.3. The vehicle shall be operated in such a manner that any design feature of the purge system that could restrict
purge operation is detected and the circumstances noted.
7.4.4. Whilst the engine is operating within the bounds noted in paragraph 7.4.3 of this annex, the air flow shall
be determined by either:
7.4.4.1. The device indicated in paragraph 7.4.1 of this annex being switched in. A pressure drop from atmospheric
to a level indicating that a volume of 1,0 litre of air has flowed into the evaporative emission control system
within one minute shall be observed; or
7.4.4.2. If an alternative flow measuring device is used, a reading of no less than 1,0 litre per minute shall be
detectable.
7.4.4.3. At the request of the manufacturer an alternative purge tat procedure can be used, if the procedure has been
presented to and has been accepted by the Technical Service during the type approval procedure.
7.5. The Type Approval Authority which has granted type approval may at any time verify the conformity control
methods applicable to each production unit.
7.5.1. The inspector shall take a sufficiently large sample from the series.
7.5.2. The inspector may test these vehicles by application of paragraph 7.1 of this annex.
7.6. If the requirements of paragraph 7.5 of this annex are not met, the Type Approval Authority shall ensure
that all necessary steps are taken to re-establish conformity of production as rapidly as possible.L 45/156 EN Official Journal of the European Union 15.2.2019
APPENDIX 1
CALIBRATION OF EQUIPMENT FOR EVAPORATIVE EMISSION TESTING
1. CALIBRATION FREQUENCY AND METHODS
1.1. All equipment shall be calibrated before its initial use and then calibrated as often as necessary and in any case
in the month before type approval testing. The calibration methods to be used are described in this appendix.
1.2. Normally the series of temperatures which are mentioned first shall be used. The series of temperatures within
square brackets may alternatively be used.
2. CALIBRATION OF THE ENCLOSURE
2.1. Initial determination of internal volume of the enclosure
2.1.1. Before its initial use, the internal volume of the chamber shall be determined as follows:
The internal dimensions of the chamber are carefully measured, allowing for any irregularities such as bracing
struts. The internal volume of the chamber is determined from these measurements.
For variable-volume enclosures, the enclosure shall be latched to a fixed volume when the enclosure is held at
an ambient temperature of 303 K (30 °C) [(302 K (29 °C)]. This nominal volume shall be repeatable within
± 0,5 per cent of the reported value.
2.1.2. The net internal volume is determined by subtracting 1,42 m3 from the internal volume of the chamber.
Alternatively the volume of the test vehicle with the luggage compartment and windows open may be used
instead of the 1,42 m3.
2.1.3. The chamber shall be checked as in paragraph 2.3 of this appendix. If the propane mass does not correspond
to the injected mass to within ± 2 per cent, then corrective action is required.
2.2. Determination of chamber background emissions
This operation determines that the chamber does not contain any materials that emit significant amounts of
hydrocarbons. The check shall be carried out at the enclosure's introduction to service, after any operations in
the enclosure which may affect background emissions and at a frequency of at least once per year.
2.2.1. Variable-volume enclosures may be operated in either latched or unlatched volume configuration, as described
in paragraph 2.1.1 of this appendix, ambient temperatures shall be maintained at 308 K ± 2 K (35 °C ± 2 °C)
[309 K ± 2 K (36 °C ± 2 °C)], throughout the 4-hour period mentioned below.
2.2.2. Fixed volume enclosures shall be operated with the inlet and outlet flow streams closed. Ambient temperatures
shall be maintained at 308 K ± 2 K (35 °C ± 2 °C) [309 K ± 2 K (36 °C ± 2 °C) throughout the 4-hour period
mentioned below.
2.2.3. The enclosure may be sealed and the mixing fan operated for a period of up to 12 hours before the 4-hour
background sampling period begins.
2.2.4. The analyser (if required) shall be calibrated, then zeroed and spanned.
2.2.5. The enclosure shall be purged until a stable hydrocarbon reading is obtained, and the mixing fan turned on if
not already on.
2.2.6. The chamber is then sealed and the background hydrocarbon concentration, temperature and barometric
pressure are measured. These are the initial readings C , P, T used in the enclosure background calculation.
HCi i i15.2.2019 EN Official Journal of the European Union L 45/157
2.2.7. The enclosure is allowed to stand undisturbed with the mixing fan on for a period of four hours.
2.2.8. At the end of this time the same analyser is used to measure the hydrocarbon concentration in the chamber.
The temperature and the barometric pressure are also measured. These are the final readings C , P, T.
HCf f f
2.2.9. The change in mass of hydrocarbons in the enclosure shall be calculated over the time of the test in accordance
with paragraph 2.4 of this appendix and shall not exceed 0,05 g.
2.3. Calibration and hydrocarbon retention test of the chamber
The calibration and hydrocarbon retention test in the chamber provides a check on the calculated volume in
paragraph 2.1 of this appendix and also measures any leak rate. The enclosure leak rate shall be determined at
the enclosure's introduction to service, after any operations in the enclosure which may affect the integrity of
the enclosure, and at least monthly thereafter. If six consecutive monthly retention checks are successfully
completed without corrective action, the enclosure leak rate may be determined quarterly thereafter as long as
no corrective action is required.
2.3.1. The enclosure shall be purged until a stable hydrocarbon concentration is reached. The mixing fan is turned on,
if not already switched on. The hydrocarbon analyser is zeroed, calibrated if required, and spanned.
2.3.2. On variable-volume enclosures, the enclosure shall be latched to the nominal volume position. On
fixed-volume enclosures the outlet and inlet flow streams shall be closed.
2.3.3. The ambient temperature control system is then turned on (if not already on) and adjusted for an initial
temperature of 308 K (35 °C) [309 K (36 °C)].
2.3.4. When the enclosure stabilises at 308 K ± 2 K (35 °C ± 2 °C) [309 K ± 2 K (36 °C ± 2 °C)], the enclosure is
sealed and the background concentration, temperature and barometric pressure measured. These are the initial
readings C , P, T used in the enclosure calibration.
HCi i i
2.3.5. A quantity of approximately 4 grams of propane is injected into the enclosure. The mass of propane shall be
measured to an accuracy and precision of ± 2 per cent of the measured value.
2.3.6. The contents of the chamber shall be allowed to mix for five minutes and then the hydrocarbon concentration,
temperature and barometric pressure are measured. These are the readings C , P, T for the calibration of the
HCf f f
enclosure as well as the initial readings C , P, T for the retention check.
HCi i i
2.3.7. Based on the readings taken according to paragraphs 2.3.4 and 2.3.6 and the formula in paragraph 2.4 of this
appendix, the mass of propane in the enclosure is calculated. This shall be within ± 2 per cent of the mass of
propane measured in paragraph 2.3.5 of this appendix.
2.3.8. For variable-volume enclosures the enclosure shall be unlatched from the nominal volume configuration. For
fixed-volume enclosures, the outlet and inlet flow streams shall be opened.
2.3.9. The process is then begun of cycling the ambient temperature from 308 K (35 °C) to 293 K (20 °C) and back
to 308 K (35 °C) [308,6 K (35,6 °C) to 295,2 K (22,2 °C) and back to 308,6 K (35,6 °C)] over a 24-hour
period according to the profile [alternative profile] specified in Appendix 2 to this annex within 15 minutes of
sealing the enclosure. (Tolerances as specified in paragraph 5.7.1 of this annex.)
2.3.10. At the completion of the 24-hour cycling period, the final hydrocarbon concentration, temperature and
barometric pressure are measured and recorded. These are the final readings C , P, T for the hydrocarbon
HCf f f
retention check.
2.3.11. Using the formula in paragraph 2.4 of this appendix, the hydrocarbon mass is then calculated from the
readings taken in paragraphs 2.3.6 and 2.3.10 of this appendix. The mass may not differ by more than
3 per cent from the hydrocarbon mass given in paragraph 2.3.7 of this appendix.L 45/158 EN Official Journal of the European Union 15.2.2019
2.4. Calculations
The calculation of net hydrocarbon mass change within the enclosure is used to determine the chamber's
hydrocarbon background and leak rate. Initial and final readings of hydrocarbon concentration, temperature
and barometric pressure are used in the following formula to calculate the mass change.
� �
C �P C �P
M ¼k�V�10 − 4 HC,f f − HC,i i þM − M
HC T T HC,out HC,i
f i
Where:
M = hydrocarbon mass in grams,
HC
M = mass of hydrocarbons exiting the enclosure, in the case of fixed-volume enclosures for diurnal
HC,out
emission testing (grams),
M = mass of hydrocarbons entering the enclosure when a fixed-volume enclosure is used for testing
HC,i
diurnal emissions (grams),
C = hydrocarbon concentration in the enclosure (ppm carbon
HC
(Note: ppm carbon = ppm propane × 3)),
V = enclosure volume in cubic metres,
T = ambient temperature in the enclosure, (K),
P = barometric pressure, (kPa),
K = 17,6;
Where:
i is the initial reading,
f is the final reading.
3. CHECKING OF FID HYDROCARBON ANALYZER
3.1. Detector response optimisation
The FID shall be adjusted as specified by the instrument manufacturer. Propane in air should be used to
optimise the response on the most common operating range.
3.2. Calibration of the HC analyser
The analyser should be calibrated using propane in air and purified synthetic air. See paragraph 3.2 of
Appendix 3 to Annex 4a to this Regulation.
Establish a calibration curve as described in paragraphs 4.1 to 4.5 of this appendix.
3.3. Oxygen interference check and recommended limits
The response factor (Rf) for a particular hydrocarbon species is the ratio of the FID C1 reading to the gas
cylinder concentration, expressed as ppm C1. The concentration of the test gas shall be at a level to give
a response of approximately 80 per cent of full-scale deflection, for the operating range. The concentration
shall be known, to an accuracy of ± 2 per cent in reference to a gravimetric standard expressed in volume. In
addition the gas cylinder shall be preconditioned for 24 hours at a temperature between 293 K and 303 K
(20 and 30 °C).
Response factors should be determined when introducing an analyser into service and thereafter at major
service intervals. The reference gas to be used is propane with balance purified air which is taken to give
a response factor of 1,00.15.2.2019 EN Official Journal of the European Union L 45/159
The test gas to be used for oxygen interference and the recommended response factor range are given below:
Propane and nitrogen: 0,95 ≤ Rf ≤ 1,05.
4. CALIBRATION OF THE HYDROCARBON ANALYZER
Each of the normally used operating ranges are calibrated by the following procedure:
4.1. Establish the calibration curve by at least five calibration points spaced as evenly as possible over the operating
range. The nominal concentration of the calibration gas with the highest concentrations to be at least
80 per cent of the full scale.
4.2. Calculate the calibration curve by the method of least squares. If the resulting polynomial degree is greater
than 3, then the number of calibration points shall be at least the number of the polynomial degree plus 2.
4.3. The calibration curve shall not differ by more than 2 per cent from the nominal value of each calibration gas.
4.4. Using the coefficients of the polynomial derived from paragraph 3.2 of this appendix, a table of indicated
reading against true concentration shall be drawn up in steps of no greater than 1 per cent of full scale. This is
to be carried out for each analyser range calibrated. The table shall also contain other relevant data such as:
(a) Date of calibration, span and zero potentiometer readings (where applicable);
(b) Nominal scale;
(c) Reference data of each calibration gas used;
(d) The actual and indicated value of each calibration gas used together with the percentage differences;
(e) FID fuel and type;
(f) FID air pressure.
4.5. If it can be shown to the satisfaction of the Technical Service that alternative technology (e.g. computer,
electronically controlled range switch) can give equivalent accuracy, then those alternatives may be used.L 45/160 EN Official Journal of the European Union 15.2.2019
APPENDIX 2
Alternative diurnal ambient temperature profile for
Diurnal ambient temperature profile for the calibration of the enclosure and
the calibration of the enclosure in accordance with
the diurnal emission test
Annex 7, Appendix 1, paragraphs 1.2 and 2.3.9
Time (hours)
Temperature Temperature
Time (hours)
(°C) (°C)
Calibration Test i i
13 0/24 20,0 0 35,6
14 1 20,2 1 35,3
15 2 20,5 2 34,5
16 3 21,2 3 33,2
17 4 23,1 4 31,4
18 5 25,1 5 29,7
19 6 27,2 6 28,2
20 7 29,8 7 27,2
21 8 31,8 8 26,1
22 9 33,3 9 25,1
23 10 34,4 10 24,3
24/0 11 35,0 11 23,7
1 12 34,7 12 23,3
2 13 33,8 13 22,9
3 14 32,0 14 22,6
4 15 30,0 15 22,2
5 16 28,4 16 22,5
6 17 26,9 17 24,2
7 18 25,2 18 26,8
8 19 24,0 19 29,6
9 20 23,0 20 31,9
10 21 22,0 21 33,9
11 22 20,8 22 35,1
12 23 20,2 23 35,4
24 35,615.2.2019 EN Official Journal of the European Union L 45/161
ANNEX 8
TYPE VI TEST
(Verifying the average exhaust emissions of carbon monoxide and hydrocarbons after a cold start
at low ambient temperature)
1. INTRODUCTION
This annex applies only to vehicles with positive ignition engines. It describes the equipment required and the
procedure for the Type VI test defined in paragraph 5.3.5 of this Regulation in order to verify the emissions of
carbon monoxide and hydrocarbons at low ambient temperatures. Topics addressed in this Regulation include:
(a) Equipment requirements;
(b) Test conditions;
(c) Test procedures and data requirements.
2. TEST EQUIPMENT
2.1. Summary
2.1.1. This chapter deals with the equipment needed for low ambient temperature exhaust emission tests of positive
ignition engined vehicles. Equipment required and specifications are equivalent to the requirements for the
Type I test as specified Annex 4a to this Regulation, with appendices, if specific requirements for the Type VI
test are not prescribed. Paragraphs 2.2 to 2.6 of this annex describe deviations applicable to Type VI low
ambient temperature testing.
2.2. Chassis dynamometer
2.2.1. The requirements of Appendix 1 to Annex 4a to this Regulation apply. The dynamometer shall be adjusted
to simulate the operation of a vehicle on the road at 266 K (– 7 °C). Such adjustment may be based on a
determination of the road load force profile at 266 K (– 7 °C). Alternatively the driving resistance determined
according to Appendix 7 to Annex 4a to this Regulation may be adjusted for a 10 per cent decrease of the
coast-down time. The Technical Service may approve the use of other methods of determining the driving
resistance.
2.2.2. For calibration of the dynamometer the provisions of Appendix 1 to Annex 4a to this Regulation apply.
2.3. Sampling system
2.3.1. The provisions of Appendix 2 and Appendix 3 to Annex 4a to this Regulation apply.
2.4. Analytical equipment
2.4.1. The provisions of Appendix 3 to Annex 4a to this Regulation apply, but only for carbon monoxide, carbon
dioxide, and total hydrocarbon testing.
2.4.2. For calibrations of the analytical equipment the provisions of Annex 4a to this Regulation apply.
2.5. Gases
2.5.1. The provisions of paragraph 3 of Appendix 3 to Annex 4a to this Regulation apply, where they are relevant.
2.6. Additional equipment
2.6.1. For equipment used for the measurement of volume, temperature, pressure and humidity the provisions in
paragraph 4.6 of Annex 4a to this Regulation apply.L 45/162 EN Official Journal of the European Union 15.2.2019
3. TEST SEQUENCE AND FUEL
3.1. General requirements
3.1.1. The test sequence in Figure A8/1 shows the steps encountered as the test vehicle undergoes the procedures for
the Type VI test. Ambient temperature levels encountered by the test vehicle shall average: 266 K (– 7 °C) ± 3 K
and shall not be less than 260 K (– 13 °C), or more than 272 K (– 1 °C).
The temperature may not fall below 263 K (– 10 °C), or exceed 269 K (– 4 °C) for more than three consecutive
minutes.
3.1.2. The test cell temperature monitored during testing shall be measured at the output of the cooling fan
(paragraph 5.2.1 of this annex). The ambient temperature reported shall be an arithmetic average of the test cell
temperatures measured at constant intervals no more than one minute apart.
3.2. Test procedure
The Part One, urban cycle, according to Figure A4a/1 in Annex 4a to this Regulation, consists of four
elementary urban cycles which together make a complete Part One cycle.
3.2.1. Start of engine, start of the sampling and the operation of the first cycle shall be in accordance with Table 1
and Figure A4a/1 in Annex 4a to this Regulation.
3.3. Preparation for the test
3.3.1. For the test vehicle the provisions of paragraph 3.2 of Annex 4a to this Regulation apply. For setting the
equivalent inertia mass on the dynamometer the provisions of paragraph 6.2.1 of Annex 4a to this Regulation
apply.15.2.2019 EN Official Journal of the European Union L 45/163
Figure A8/1
Procedure for low ambient temperature test
3.4. Test fuel
3.4.1. The test fuel shall comply with the specifications given in paragraph 2 of Annex 10 to this Regulation.
4. VEHICLE PRECONDITIONING
4.1. Summary
4.1.1. To ensure reproducible emission tests, the test vehicles shall be conditioned in a uniform manner. The
conditioning consists of a preparatory drive on a chassis dynamometer followed by a soak period before the
emission test according to paragraph 4.3 of this annex.L 45/164 EN Official Journal of the European Union 15.2.2019
4.2. Preconditioning
4.2.1. The fuel tank(s) shall be filled with the specified test fuel. If the existing fuel in the fuel tank(s) does not meet
the specifications contained in paragraph 3.4.1 of this annex, the existing fuel shall be drained prior to the fuel
fill. The test fuel shall be at a temperature less than or equal to 289 K (+ 16 °C). For the above operations the
evaporative emission control system shall neither be abnormally purged nor abnormally loaded.
4.2.2. The vehicle is moved to the test cell and placed on the chassis dynamometer.
4.2.3. The preconditioning consists of one complete driving cycle, Parts One and Two, according to Tables A4a/1
and A4a/2 and Figure A4a/1 of Annex 4a to this Regulation. At the request of the manufacturer, vehicles with
a positive ignition engine may be preconditioned with one Part One and two Part Two driving cycles.
4.2.4. During the preconditioning the test cell temperature shall remain relatively constant and not be higher than
303 K (30 °C)
4.2.5. The drive-wheel tyre pressure shall be set in accordance with the provisions of paragraph 6.2.3 of Annex 4a to
this Regulation.
4.2.6. Within ten minutes of completion of the preconditioning, the engine shall be switched off.
4.2.7. If requested by the manufacturer and approved by the Technical Service, additional preconditioning may in
exceptional cases be allowed. The Technical Service may also choose to conduct additional preconditioning. The
additional preconditioning consists of one or more driving schedules of the Part One cycle as described in
Table A4a/1 and Figure A4a/1 of Annex 4a to this Regulation. The extent of such additional preconditioning
shall be recorded in the test report.
4.3. Soak methods
4.3.1. One of the following two methods, to be selected by the manufacturer, shall be utilised to stabilise the vehicle
before the emission test.
4.3.2. Standard method
The vehicle is stored for not less than 12 hours nor for more than 36 hours prior to the low ambient
temperature exhaust emission test. The ambient temperature (dry bulb) during this period shall be maintained
at an average temperature of:
266 K (– 7 °C) ± 3 K during each hour of this period and shall not be less than 260 K (– 13 °C) nor more than
272 K (– 1 °C). In addition, the temperature may not fall below 263 K (– 10 °C) nor more than 269 K (– 4 °C)
for more than three consecutive minutes.
4.3.3. Forced method
The vehicle shall be stored for not more than 36 hours prior to the low ambient temperature exhaust emission
test.
4.3.3.1. The vehicle shall not be stored at ambient temperatures which exceed 303 K (30 °C) during this period.
4.3.3.2. Vehicle cooling may be accomplished by force-cooling the vehicle to the test temperature. If cooling is
augmented by fans, the fans shall be placed in a vertical position so that the maximum cooling of the drive
train and engine is achieved and not primarily the sump. Fans shall not be placed under the vehicle.
4.3.3.3. The ambient temperature need only be stringently controlled after the vehicle has been cooled to 266 K
(– 7 °C) ± 2 K, as determined by a representative bulk oil temperature.
A representative bulk oil temperature is the temperature of the oil measured near the middle of the oil sump,
not at the surface or at the bottom of the oil sump. If two or more diverse locations in the oil are monitored,
they shall all meet the temperature requirements.15.2.2019 EN Official Journal of the European Union L 45/165
4.3.3.4. The vehicle shall be stored for at least one hour after is has been cooled to 266 K (– 7 °C) ± 2 K, prior to the
low ambient temperature exhaust emission test. The ambient temperature (dry bulb) during this period shall
average 266 K (– 7 °C) ± 3 K, and shall not be less than 260 K (– 13 °C) or more than 272 K (– 1 °C).
In addition, the temperature may not fall below 263 K (– 10 °C) or exceed 269 K (– 4 °C), for more than three
consecutive minutes.
4.3.4. If the vehicle is stabilised at 266 K (– 7 °C), in a separate area and is moved through a warm area to the test
cell, the vehicle shall be re-stabilised in the test cell for at least six times the period the vehicle is exposed to
warmer temperatures. The ambient temperature (dry bulb) during this period shall average 266 K (– 7 °C)
± 3 K and shall not be less than 260 K (– 13 °C) nor more than 272 K (– 1 °C).
In addition, the temperature may not fall below 263 K (– 10 °C) or exceed 269 K (– 4 °C), for more than three
consecutive minutes.
5. DYNAMOMETER PROCEDURE
5.1. Summary
5.1.1. The emission sampling is performed over a test procedure consisting of the Part One cycle (Annex 4a to this
Regulation, Table A4a/1 and Figure A4a/1). Engine start-up, immediate sampling, operation over the Part One
cycle and engine shut-down make a complete low ambient temperature test, with a total test time of
780 seconds. The exhaust emissions are diluted with ambient air and a continuously proportional sample is
collected for analysis. The exhaust gases collected in the bag are analysed for hydrocarbons, carbon monoxide,
and carbon dioxide. A parallel sample of the dilution air is similarly analysed for carbon monoxide, total
hydrocarbons and carbon dioxide.
5.2. Dynamometer operation
5.2.1. Cooling fan
5.2.1.1. A cooling fan is positioned so that cooling air is appropriately directed to the radiator (water cooling) or to the
air intake (air-cooling) and to the vehicle.
5.2.1.2. For front-engined vehicles, the fan shall be positioned in front of the vehicle, within 300 mm of it. In the case
of rear-engined vehicles or if the above arrangement is impractical, the cooling fan shall be positioned so that
sufficient air is supplied to cool the vehicle.
5.2.1.3. The fan speed shall be such that, within the operating range of 10 km/h to at least 50 km/h, the linear velocity
of the air at the blower outlet is within ± 5 km/h of the corresponding roller speed. The final selection of the
blower shall have the following characteristics:
(a) Area: at least 0,2 m2;
(b) Height of the lower edge above ground: approximately 20 cm.
As an alternative the blower linear air speed shall be at least 6 m/s (21,6 km/h). At the request of the
manufacturer, for special vehicles (e.g. vans, off-road) the height of the cooling fan may be modified.
5.2.1.4. The vehicle speed as measured from the dynamometer roll(s) shall be used (paragraph 1.2.6 of Appendix 1 to
Annex 4a to this Regulation).
5.2.2. Reserved
5.2.3. Preliminary testing cycles may be carried out if necessary, to determine how best to actuate the accelerator and
brake controls so as to achieve a cycle approximating to the theoretical cycle within the prescribed limits, or to
permit sampling system adjustment. Such driving shall be carried out before ‘START’ according to Figure A8/1.
5.2.4. Humidity in the air shall be kept low enough to prevent condensation on the dynamometer roll(s).
5.2.5. The dynamometer shall be thoroughly warmed as recommended by the dynamometer manufacturer, and using
procedures or control methods that assure stability of the residual frictional power.L 45/166 EN Official Journal of the European Union 15.2.2019
5.2.6. The time between dynamometer warming and the start of the emission test shall be no longer than 10 minutes
if the dynamometer bearings are not independently heated. If the dynamometer bearings are independently
heated, the emission test shall begin no longer than 20 minutes after dynamometer warming.
5.2.7. If the dynamometer power is to be adjusted manually, it shall be set within one hour prior to the exhaust
emission test phase. The test vehicle may not be used to make the adjustment. The dynamometer, using
automatic control of pre-selectable power settings, may be set at any time prior to the beginning of the
emission test.
5.2.8. Before the emission test driving schedule may begin, the test cell temperature shall be 266 K (– 7 °C) ± 2 K, as
measured in the air stream of the cooling fan with a maximum distance of 1,5 m from the vehicle.
5.2.9. During operation of the vehicle the heating and defrosting devices shall be shut off.
5.2.10. The total driving distance or roller revolutions measured are recorded.
5.2.11. A four-wheel drive vehicle shall be tested in a two-wheel drive mode of operation. The determination of the
total road force for dynamometer setting is performed while operating the vehicle in its primary designed
driving mode.
5.3. Performing the test
5.3.1. The provisions of paragraph 6.4, excluding 6.4.1.2, of Annex 4a to this Regulation apply in respect of starting
the engine, carrying out the test and taking the emission samples. The sampling begins before or at the
initiation of the engine start-up procedure and ends on conclusion of the final idling period of the last
elementary cycle of the Part One (urban cycle), after 780 seconds.
The first driving cycle starts with a period of 11 seconds idling as soon as the engine has started.
5.3.2. For the analysis of the sampled emissions the provisions of paragraph 6.5, excluding paragraph 6.5.2, of
Annex 4a to this Regulation apply. In performing the exhaust sample analysis the Technical Service shall
exercise care to prevent condensation of water vapour in the exhaust gas sampling bags.
5.3.3. For the calculations of the mass emissions the provisions of paragraph 6.6 of Annex 4a to this Regulation
apply.
6. OTHER REQUIREMENTS
6.1. Irrational emission control strategy
6.1.1. Any irrational emission control strategy which results in a reduction in effectiveness of the emission control
system under normal operating conditions at low temperature driving, so far as not covered by the
standardised emission tests, may be considered a defeat device.15.2.2019 EN Official Journal of the European Union L 45/167
ANNEX 9
TYPE V TEST
(Description of the endurance test for verifying the durability of pollution control devices)
1. INTRODUCTION
1.1. This annex described the test for verifying the durability of anti-pollution devices equipping vehicles with
positive ignition or compression-ignition engines. The durability requirements shall be demonstrated using one
of the three options set out in paragraphs 1.2, 1.3 and 1.4 below.
1.2. The whole vehicle durability test represents an ageing test of 160 000 km. This test is to be performed driven
on a test track, on the road, or on a chassis dynamometer.
1.3. The manufacturer may choose to use a bench ageing durability test. The technical requirements for this test are
set out in paragraph 2.2 of this annex.
1.4. As an alternative to durability testing, a manufacturer may choose to apply the assigned deterioration factors
from Table 3 in paragraph 5.3.6.2 of this Regulation.
1.5. At the request of the manufacturer, the Technical Service may carry out the Type I test before the whole vehicle
or bench ageing durability test has been completed using the assigned deterioration factors in Table 3 in
paragraph 5.3.6.2 of this Regulation. On completion of the whole vehicle or bench ageing durability test, the
Technical Service may then amend the type approval results recorded in Annex 2 to this Regulation by
replacing the assigned deterioration factors in the above table with those measured in the whole vehicle or
bench ageing durability test.
1.6. Deterioration factors are determined using either the procedures set out in paragraphs 1.2 and 1.3 of this
annex or using the assigned values in the table referred in paragraph 1.4 of this annex. The deterioration
factors are used to establish compliance with the requirements of the appropriate emissions limits set out in
Table 1 in paragraph 5.3.1.4 of this Regulation during the useful life of the vehicle.
2. TECHNICAL REQUIREMENTS
2.1. As an alternative to the operating cycle described in paragraph 6.1 for the whole vehicle durability test, the
vehicle manufacturer may use Standard Road Cycle (SRC) described in Appendix 3 to this annex. This test cycle
shall be conducted until the vehicle has covered a minimum of 160 000 km.
2.2. Bench ageing durability test
2.2.1. In addition to the requirements for the bench ageing test set out in paragraph 1.3 of this annex, the technical
requirements set out in this paragraph 2 shall apply.
The fuel to be used during the test shall be the one specified in paragraph 4 of this annex.
2.3. The bench ageing durability test to be used shall be the one appropriate to the type of engine, as detailed in
paragraphs 2.3.1 and 2.3.2 of this annex.
2.3.1. Vehicles with positive ignition engines
2.3.1.1. The following bench ageing procedure shall be applicable for positive ignition vehicles including hybrid
vehicles which use a catalyst as the principle after-treatment emission control device.
The bench ageing procedure requires the installation of the catalyst-plus-oxygen sensor system on a catalyst
ageing bench.
Ageing on the bench shall be conducted by following the SBC for the period of time calculated from the Bench
Ageing Time (BAT) equation. The BAT equation requires, as input, catalyst time-at-temperature data measured
on the SRC, described in Appendix 3 of this annex.L 45/168 EN Official Journal of the European Union 15.2.2019
2.3.1.2. SBC. Standard catalyst bench ageing shall be conducted following the SBC. The SBC shall be run for the period
of time calculated from the BAT equation. The SBC is described in Appendix 1 to this annex.
2.3.1.3. Catalyst time-at-temperature data. Catalyst temperature shall be measured during at least two full cycles of the
SRC cycle as described in Appendix 3 to this annex.
Catalyst temperature shall be measured at the highest temperature location in the hottest catalyst on the test
vehicle. Alternatively, the temperature may be measured at another location providing that it is adjusted to
represent the temperature measured at the hottest location using good engineering judgement.
Catalyst temperature shall be measured at a minimum rate of one hertz (one measurement per second).
The measured catalyst temperature results shall be tabulated into a histogram with temperature groups of no
larger than 25 °C.
2.3.1.4. The Bench Ageing Time (BAT) shall be calculated using the BAT equation as follows:
te for a temperature bin = th e((R/Tr)-(R/Tv))
Total te = Sum of te over all the temperature groups
Bench Ageing Time = A (Total te)
Where:
A = 1,1 This value adjusts the catalyst ageing time to account for deterioration from sources
other than thermal ageing of the catalyst.
R = Catalyst thermal reactivity = 17 500
th = The time (in hours) measured within the prescribed temperature bin of the vehicle's
catalyst temperature histogram adjusted to a full useful life basis e.g., if the histogram
represented 400 km, and useful life is 160 000 km; all histogram time entries would be
multiplied by 400 (160 000/400).
Total te = The equivalent time (in hours) to age the catalyst at the temperature of Tr on the catalyst
ageing bench using the catalyst ageing cycle to produce the same amount of deterioration
experienced by the catalyst due to thermal deactivation over the 160 000 km.
te for a bin = The equivalent time (in hours) to age the catalyst at the temperature of Tr on the catalyst
ageing bench using the catalyst ageing cycle to produce the same amount of deterioration
experienced by the catalyst due to thermal deactivation at the temperature bin of Tv over
160 000 km.
Tr = The effective reference temperature (in K) of the catalyst on the catalyst bench run on the
bench ageing cycle. The effective temperature is the constant temperature that would
result in the same amount of ageing as the various temperatures experienced during the
bench ageing cycle.
Tv = The mid-point temperature (in K) of the temperature bin of the vehicle on-road catalyst
temperature histogram.
2.3.1.5. Effective reference temperature on the SBC. The effective reference temperature of the SBC shall be determined
for the actual catalyst system design and actual ageing bench which will be used using the following
procedures:
(a) Measure time-at-temperature data in the catalyst system on the catalyst ageing bench following the SBC.
Catalyst temperature shall be measured at the highest temperature location of the hottest catalyst in the
system. Alternatively, the temperature may be measured at another location providing that it is adjusted to
represent the temperature measured at the hottest location.
Catalyst temperature shall be measured at a minimum rate of one hertz (one measurement per second)
during at least 20 minutes of bench ageing. The measured catalyst temperature results shall be tabulated
into a histogram with temperature groups of no larger than 10 °C.15.2.2019 EN Official Journal of the European Union L 45/169
(b) The BAT equation shall be used to calculate the effective reference temperature by iterative changes to the
reference temperature (Tr) until the calculated ageing time equals or exceeds the actual time represented in
the catalyst temperature histogram. The resulting temperature is the effective reference temperature on the
SBC for that catalyst system and ageing bench.
2.3.1.6. Catalyst ageing bench. The catalyst ageing bench shall follow the SBC and deliver the appropriate exhaust flow,
exhaust constituents, and exhaust temperature at the face of the catalyst.
All bench ageing equipment and procedures shall record appropriate information (such as measured A/F ratios
and time-at-temperature in the catalyst) to assure that sufficient ageing has actually occurred.
2.3.1.7. Required testing. For calculating deterioration factors at least two Type I tests before bench ageing of the
emission control hardware and at least two Type I tests after the bench-aged emission hardware is reinstalled
have to be performed on the test vehicle.
Additional testing may be conducted by the manufacturer. Calculation of the deterioration factors has to be
done according to the calculation method as specified in paragraph 7 of this annex.
2.3.2. Vehicles with compression ignition engines
2.3.2.1. The following bench ageing procedure is applicable for compression-ignition vehicles including hybrid vehicles.
The bench ageing procedure requires the installation of the after-treatment system on an after-treatment system
ageing bench.
Ageing on the bench is conducted by following the Standard Diesel Bench Cycle (SDBC) for the number of
regenerations/desulphurisations calculated from the Bench Ageing Duration (BAD) equation.
2.3.2.2. SDBC. Standard bench ageing is conducted following the SDBC. The SDBC shall be run for the period of time
calculated from the BAD equation. The SDBC is described in Appendix 2 to this annex.
2.3.2.3. Regeneration data. Regeneration intervals shall be measured during at least 10 full cycles of the SRC cycle as
described in Appendix 3 to this annex. As an alternative the intervals from the K determination may be used.
i
If applicable, desulphurisation intervals shall also be considered based on manufacturer's data.
2.3.2.4. Diesel bench ageing duration. Bench ageing duration is calculated using the BAD equation as follows:
Bench ageing duration = number of regeneration and/or desulphurisation cycles (whichever is the longer)
equivalent to 160 000 km of driving.
2.3.2.5. Ageing bench. The ageing bench shall follow the SDBC and deliver appropriate exhaust flow, exhaust
constituents, and exhaust temperature to the after-treatment system inlet.
The manufacturer shall record the number of regenerations/desulphurisations (if applicable) to assure that
sufficient ageing has actually occurred.
2.3.2.6. Required testing. For calculating deterioration factors at least two Type I tests before bench ageing of the
emission control hardware and at least two Type I tests after the bench-aged emission hardware is reinstalled
have to be performed. Additional testing may be conducted by the manufacturer. Calculation of the
deterioration factors shall be done according to the calculation method set out in paragraph 7 of this annex
and with the additional requirements contained in this Regulation.
3. TEST VEHICLE
3.1. The vehicle shall be in good mechanical order; the engine and the anti-pollution devices shall be new. The
vehicle may be the same as that presented for the Type I test; this Type I test has to be done after the vehicle
has run at least 3 000 km of the ageing cycle of paragraph 6.1 of this annex.L 45/170 EN Official Journal of the European Union 15.2.2019
4. FUEL
The durability test is conducted with a suitable commercially available fuel.
5. VEHICLE MAINTENANCE AND ADJUSTMENTS
Maintenance, adjustments as well as the use of the test vehicle's controls shall be those recommended by the
manufacturer.
6. VEHICLE OPERATION ON TRACK, ROAD OR ON CHASSIS DYNAMOMETER
6.1. Operating cycle
During operation on track, road or on roller test bench, the distance shall be covered according to the driving
schedule (Figure A9/1) described below:
6.1.1. The durability test schedule is composed of 11 cycles covering 6 kilometres each,
6.1.2. During the first nine cycles, the vehicle is stopped four times in the middle of the cycle, with the engine idling
each time for 15 seconds,
6.1.3. Normal acceleration and deceleration,
6.1.4. Five decelerations in the middle of each cycle, dropping from cycle speed to 32 km/h, and the vehicle is
gradually accelerated again until cycle speed is attained,
6.1.5. The 10th cycle is carried out at a steady speed of 89 km/h,
6.1.6. The 11th cycle begins with maximum acceleration from stop point up to 113 km/h. At half-way, braking is
employed normally until the vehicle comes to a stop. This is followed by an idle period of 15 seconds and
a second maximum acceleration.
The schedule is then restarted from the beginning.
The maximum speed of each cycle is given in Table A9/1.
Table A9/1
Maximum speed of each cycle
Cycle Cycle speed in km/h
1 64
2 48
3 64
4 64
5 56
6 48
7 56
8 72
9 56
10 89
11 11315.2.2019 EN Official Journal of the European Union L 45/171
Figure A9/1
Driving schedule
6.2. The durability test, or if the manufacturer has chosen, the modified durability test shall be conducted until the
vehicle has covered a minimum of 160 000 km.
6.3. Test equipment
6.3.1. Chassis dynamometer
6.3.1.1. When the durability test is performed on a chassis dynamometer, the dynamometer shall enable the cycle
described in paragraph 6.1 of this annex to be carried out. In particular, it shall be equipped with systems
simulating inertia and resistance to progress.
6.3.1.2. The brake shall be adjusted in order to absorb the power exerted on the driving wheels at a steady speed of
80 km/h. Methods to be applied to determine this power and to adjust the brake are the same as those
described in Appendix 7 to Annex 4a to this Regulation.
6.3.1.3. The vehicle cooling system should enable the vehicle to operate at temperatures similar to those obtained on
road (oil, water, exhaust system, etc.).
6.3.1.4. Certain other test bench adjustments and features are deemed to be identical, where necessary, to those
described in Annex 4a to this Regulation (inertia, for example, which may be mechanical or electronic).
6.3.1.5. The vehicle may be moved, where necessary, to a different bench in order to conduct emission measurement
tests.
6.3.2. Operation on track or road
When the durability test is completed on track or road, the vehicle's reference mass will be at least equal to that
retained for tests conducted on a chassis dynamometer.L 45/172 EN Official Journal of the European Union 15.2.2019
7. MEASURING EMISSIONS OF POLLUTANTS
At the start of the test (0 km), and every 10 000 km (± 400 km) or more frequently, at regular intervals until
having covered 160 000 km, exhaust emissions are measured in accordance with the Type I Test as defined in
paragraph 5.3.1 of this Regulation. The limit values to be complied with are those laid down in
paragraph 5.3.1.4 of this Regulation.
In the case of vehicles equipped with periodically regenerating systems as defined in paragraph 2.20 of this
Regulation, it shall be checked that the vehicle is not approaching a regeneration period. If this is the case, the
vehicle shall be driven until the end of the regeneration. If a regeneration occurs during the emissions
measurement, a new test (including preconditioning) shall be performed, and the first result not taken into
account.
All exhaust emissions results shall be plotted as a function of the running distance on the system rounded to
the nearest kilometre and the best fit straight line fitted by the method of least squares shall be drawn through
all these data points. This calculation shall not take into account the test results at 0 km.
The data will be acceptable for use in the calculation of the deterioration factor only if the interpolated
6 400 km and 160 000 km points on this line are within the above mentioned limits.
The data are still acceptable when a best fit straight line crosses an applicable limit with a negative slope (the
6 400 km interpolated point is higher than the 160 000 km interpolated point) but the 160 000 km actual
data point is below the limit.
A multiplicative exhaust emission deterioration factor shall be calculated for each pollutant as follows:
Mi
D:E:F¼ 2
Mi
1
Where:
Mi = mass emission of the pollutant i in g/km interpolated to 6 400 km,
1
Mi = mass emission of the pollutant i in g/km interpolated to 160 000 km.
2
These interpolated values shall be carried out to a minimum of four places to the right of the decimal point
before dividing one by the other to determine the deterioration factor. The result shall be rounded to three
places to the right of the decimal point.
If a deterioration factor is less than one, it is deemed to be equal to one.
At the request of a manufacturer, an additive exhaust emission deterioration factor shall be calculated for each
pollutant as follows:
D. E. F. = Mi – Mi
2 115.2.2019 EN Official Journal of the European Union L 45/173
APPENDIX 1
STANDARD BENCH CYCLE (SBC)
1. INTRODUCTION
The standard ageing durability procedure consists of ageing a catalyst/oxygen sensor system on an ageing bench
which follows the Standard Bench Cycle (SBC) described in this appendix. The SBC requires the use of an ageing
bench with an engine as the source of feed gas for the catalyst. The SBC is a 60-second cycle which is repeated as
necessary on the ageing bench to conduct ageing for the required period of time. The SBC is defined based on
the catalyst temperature, engine air/fuel (A/F) ratio, and the amount of secondary air injection which is added in
front of the first catalyst.
2. CATALYST TEMPERATURE CONTROL
2.1. Catalyst temperature shall be measured in the catalyst bed at the location where the highest temperature occurs
in the hottest catalyst. Alternatively, the feed gas temperature may be measured and converted to catalyst bed
temperature using a linear transform calculated from correlation data collected on the catalyst design and ageing
bench to be used in the ageing process.
2.2. Control the catalyst temperature at stoichiometric operation (01 to 40 seconds on the cycle) to a minimum of
800 °C (± 10 °C) by selecting the appropriate engine speed, load, and spark timing for the engine. Control the
maximum catalyst temperature that occurs during the cycle to 890 °C (± 10 °C) by selecting the appropriate A/F
ratio of the engine during the ‘rich’ phase described in Table A9.App1/2.
2.3. If a low control temperature other than 800 °C is utilized, the high control temperature shall be 90 °C higher
than the low control temperature.
Table A9.App1/2
Standard Bench Cycle (SBC)
Time
Engine air/fuel ratio Secondary air injection
(seconds)
1-40 Stoichiometric with load, spark timing and engine speed controlled to None
achieve a minimum catalyst temperature of 800 °C
41-45 ‘Rich’ (A/F ratio selected to achieve a maximum catalyst temperature None
over the entire cycle of 890 °C or 90 °C higher than lower control
temperature)
46-55 ‘Rich’ (A/F ratio selected to achieve a maximum catalyst temperature 3 % (± 1 %)
over the entire cycle of 890 °C or 90 °C higher than lower control
temperature)
56-60 Stoichiometric with load, spark timing and engine speed controlled to 3 % (± 1 %)
achieve a minimum catalyst temperature of 800 °CL 45/174 EN Official Journal of the European Union 15.2.2019
Figure A9.App1/2
Standard Bench Cycle
3. AGEING BENCH EQUIPMENT AND PROCEDURES
3.1. Ageing bench configuration. The ageing bench shall provide the appropriate exhaust flow rate, temperature, air-
fuel ratio, exhaust constituents and secondary air injection at the inlet face of the catalyst.
The standard ageing bench consists of an engine, engine controller, and engine dynamometer. Other config
urations may be acceptable (e.g. whole vehicle on a dynamometer, or a burner that provides the correct exhaust
conditions), as long as the catalyst inlet conditions and control features specified in this appendix are met.
A single ageing bench may have the exhaust flow split into several streams providing that each exhaust stream
meets the requirements of this appendix. If the bench has more than one exhaust stream, multiple catalyst
systems may be aged simultaneously.
3.2. Exhaust system installation. The entire catalyst(s)-plus-oxygen sensor(s) system, together with all exhaust piping
which connects these components, will be installed on the bench. For engines with multiple exhaust streams
(such as some V6 and V8 engines), each bank of the exhaust system will be installed separately on the bench in
parallel.
For exhaust systems that contain multiple in-line catalysts, the entire catalyst system including all catalysts, all
oxygen sensors and the associated exhaust piping will be installed as a unit for ageing. Alternatively, each
individual catalyst may be separately aged for the appropriate period of time.
3.3. Temperature measurement. Catalyst temperature shall be measured using a thermocouple placed in the catalyst
bed at the location where the highest temperature occurs in the hottest catalyst. Alternatively, the feed gas
temperature just before the catalyst inlet face may be measured and converted to catalyst bed temperature using
a linear transform calculated from correlation data collected on the catalyst design and ageing bench to be used
in the ageing process. The catalyst temperature shall be stored digitally at the speed of 1 hertz (one measurement
per second).
3.4. Air/Fuel measurement. Provisions shall be made for the measurement of the air/fuel (A/F) ratio (such as a wide-
range oxygen sensor) as close as possible to the catalyst inlet and outlet flanges. The information from these
sensors shall be stored digitally at the speed of 1 hertz (one measurement per second).15.2.2019 EN Official Journal of the European Union L 45/175
3.5. Exhaust flow balance. Provisions shall be made to assure that the proper amount of exhaust (measured in
grams/second at stoichiometry, with a tolerance of ± 5 grams/second) flows through each catalyst system that is
being aged on the bench.
The proper flow rate is determined based upon the exhaust flow that would occur in the original vehicle's engine
at the steady state engine speed and load selected for the bench ageing in paragraph 3.6.
3.6. Setup. The engine speed, load, and spark timing are selected to achieve a catalyst bed temperature of 800 °C
(± 10 °C) at steady-state stoichiometric operation.
The air injection system is set to provide the necessary air flow to produce 3,0 per cent oxygen (± 0,1 %) in the
steady-state stoichiometric exhaust stream just in front of the first catalyst. A typical reading at the upstream A/F
measurement point (required in paragraph 3.4 of this appendix) is lambda 1,16 (which is approximately 3 per
cent oxygen).
With the air injection on, set the ‘Rich’ A/F ratio to produce a catalyst bed temperature of 890 °C (± 10 °C).
A typical A/F value for this step is lambda 0,94 (approximately 2 per cent CO).
3.7. Ageing cycle. The standard bench ageing procedures use the SBC. The SBC is repeated until the amount of ageing
calculated from the BAT equation is achieved.
3.8. Quality assurance. The temperatures and A/F ratio in paragraphs 3.3 and 3.4 of this appendix shall be reviewed
periodically (at least every 50 hours) during ageing. Necessary adjustments shall be made to assure that the SBC is
being appropriately followed throughout the ageing process.
After the ageing has been completed, the catalyst time-at-temperature collected during the ageing process shall be
tabulated into a histogram with temperature groups of no larger than 10 °C. The BAT equation and the calculated
effective reference temperature for the ageing cycle according to paragraph 2.3.1.4 of this annex will be used to
determine if the appropriate amount of thermal ageing of the catalyst has in fact occurred. Bench ageing will be
extended if the thermal effect of the calculated ageing time is not at least 95 per cent of the target thermal
ageing.
3.9. Start up and Shutdown. Care should be taken to assure that the maximum catalyst temperature for rapid
deterioration (e.g. 1 050 °C) does not occur during start up or shut down. Special low temperature start up and
shutdown procedures may be used to alleviate this concern.
4. EXPERIMENTALLY DETERMINING THE R-FACTOR FOR BENCH AGEING DURABILITY PROCEDURES
4.1. The R-Factor is the catalyst thermal reactivity coefficient used in the BAT equation. Manufacturers may determine
the value of R experimentally using the following procedures.
4.1.1. Using the applicable bench cycle and ageing bench hardware, age several catalysts (minimum of 3 of the same
catalyst design) at different control temperatures between the normal operating temperature and the damage limit
temperature. Measure emissions (or catalyst inefficiency (1-catalyst efficiency)) for each exhaust constituent.
Assure that the final testing yields data between one- and two-times the emission standard.
4.1.2. Estimate the value of R and calculate the effective reference temperature (Tr) for the bench ageing cycle for each
control temperature according to paragraph 2.3.1.4 of this annex.
4.1.3. Plot emissions (or catalyst inefficiency) versus ageing time for each catalyst. Calculate the least-squared best-fit
line through the data. For the data set to be useful for this purpose the data should have an approximately
common intercept between 0 and 6 400 km. See Figure A9.App1/3 for an example.L 45/176 EN Official Journal of the European Union 15.2.2019
4.1.4. Calculate the slope of the best-fit line for each ageing temperature.
Figure A9.App1/3
Example of catalyst ageing
4.1.5. Plot the natural log (ln) of the slope of each best-fit line (determined in paragraph 4.1.4 of this appendix) along
the vertical axis, versus the inverse of ageing temperature (1/(ageing temperature, deg K)) along the horizontal
axis. Calculate the least squared best-fit lines through the data. The slope of the line is the R-factor.
See Figure A9.App1/4 for an example.
4.1.6. Compare the R-factor to the initial value that was used in paragraph 4.1.2 of this appendix. If the calculated
R-factor differs from the initial value by more than 5 per cent, choose a new R-factor that is between the initial
and calculated values, and then repeat the steps in paragraphs 4.1.2 to 4.1.6 of this appendix to derive a new
R-factor. Repeat this process until the calculated R-factor is within 5 per cent of the initially assumed R-factor.15.2.2019 EN Official Journal of the European Union L 45/177
4.1.7. Compare the R-factor determined separately for each exhaust constituent. Use the lowest R-factor (worst case) for
the BAT equation.
Figure A9.App1/4
Determining the R-FactorL 45/178 EN Official Journal of the European Union 15.2.2019
APPENDIX 2
STANDARD DIESEL BENCH CYCLE (SDBC)
1. Introduction
For particulate filters, the number of regenerations is critical to the ageing process. For systems that require
desulphurisation cycles (e.g. NO storage catalysts), this process is also significant.
x
The standard diesel bench ageing durability procedure consists of ageing an after-treatment system on an ageing
bench which follows the SDBC described in this appendix. The SDBC requires use of an ageing bench with an
engine as the source of feed gas for the system.
During the SDBC, the regeneration/desulphurisation strategies of the system shall remain in normal operating
condition.
2. The SDBC reproduces the engine speed and load conditions that are encountered in the SRC cycle as appropriate to
the period for which durability is to be determined. In order to accelerate the process of ageing, the engine settings
on the test bench may be modified to reduce the system loading times. For example the fuel injection timing or
EGR strategy may be modified.
3. Ageing bench equipment and procedures
3.1. The standard ageing bench consists of an engine, engine controller, and engine dynamometer. Other configurations
may be acceptable (e.g. whole vehicle on a dynamometer, or a burner that provides the correct exhaust conditions),
as long as the after-treatment system inlet conditions and control features specified in this appendix are met.
A single ageing bench may have the exhaust flow split into several streams provided that each exhaust stream
meets the requirements of this appendix. If the bench has more than one exhaust stream, multiple after-treatment
systems may be aged simultaneously.
3.2. Exhaust system installation. The entire after-treatment system, together with all exhaust piping which connects
these components, will be installed on the bench. For engines with multiple exhaust streams (such as some V6 and
V8 engines), each bank of the exhaust system will be installed separately on the bench.
The entire after-treatment system will be installed as a unit for ageing. Alternatively, each individual component
may be separately aged for the appropriate period of time.15.2.2019 EN Official Journal of the European Union L 45/179
APPENDIX 3
STANDARD ROAD CYCLE (SRC)
1. INTRODUCTION
The Standard Road Cycle (SRC) is a kilometre accumulation cycle. The vehicle may be run on a test track or on
a kilometre accumulation dynamometer.
The cycle consists of 7 laps of a 6 km course. The length of the lap may be changed to accommodate the length of
the mileage accumulation test track.
Standard road cycle
Typical acceleration
Lap Description
rate m/s2
1 (start engine) idle 10 seconds 0
1 Moderate acceleration to 48 km/h 1,79
1 Cruise at 48 km/h for ¼ lap 0
1 Moderate deceleration to 32 km/h – 2,23
1 Moderate acceleration to 48 km/h 1,79
1 Cruise at 48 km/h for ¼ lap 0
1 Moderate deceleration to stop – 2,23
1 Idle 5 seconds 0
1 Moderate acceleration to 56 km/h 1,79
1 Cruise at 56 km/h for ¼ lap 0
1 Moderate deceleration to 40 km/h – 2,23
1 Moderate acceleration to 56 km/h 1,79
1 Cruise at 56 km/h for ¼ lap 0
1 Moderate deceleration to stop – 2,23
2 Idle 10 seconds 0
2 Moderate acceleration to 64 km/h 1,34
2 Cruise at 64 km/h for ¼ lap 0
2 Moderate deceleration to 48 km/h – 2,23
2 Moderate acceleration to 64 km/h 1,34
2 Cruise at 64 km/h for ¼ lap 0L 45/180 EN Official Journal of the European Union 15.2.2019
Typical acceleration
Lap Description
rate m/s2
2 Moderate deceleration to stop – 2,23
2 Idle 5 seconds 0
2 Moderate acceleration to 72 km/h 1,34
2 Cruise at 72 km/h for ¼ lap 0
2 Moderate deceleration to 56 km/h – 2,23
2 Moderate acceleration to 72 km/h 1,34
2 Cruise at 72 km/h for ¼ lap 0
2 Moderate deceleration to stop – 2,23
3 Idle 10 seconds 0
3 Hard acceleration to 88 km/h 1,79
3 Cruise at 88 km/h for ¼ lap 0
3 Moderate deceleration to 72 km/h – 2,23
3 Moderate acceleration to 88 km/h 0,89
3 Cruise at 88 km/h for ¼ lap 0
3 Moderate deceleration to 72 km/h – 2,23
3 Moderate acceleration to 97 km/h 0,89
3 Cruise at 97 km/h for ¼ lap 0
3 Moderate deceleration to 80 km/h – 2,23
3 Moderate acceleration to 97 km/h 0,89
3 Cruise at 97 km/h for ¼ lap 0
3 Moderate deceleration to stop – 1,79
4 Idle 10 seconds 0
4 Hard acceleration to 129 km/h 1,34
4 Coast down to 113 km/h – 0,45
4 Cruise at 113 km/h for ½ lap 0
4 Moderate deceleration to 80 km/h – 1,34
4 Moderate acceleration to 105 km/h 0,8915.2.2019 EN Official Journal of the European Union L 45/181
Typical acceleration
Lap Description
rate m/s2
4 Cruise at 105 km/h for ½ lap 0
4 Moderate deceleration to 80 km/h – 1,34
5 Moderate acceleration to 121 km/h 0,45
5 Cruise at 121 km/h for ½ lap 0
5 Moderate deceleration to 80 km/h – 1,34
5 Light acceleration to 113 km/h 0,45
5 Cruise at 113 km/h for ½ lap 0
5 Moderate deceleration to 80 km/h – 1,34
6 Moderate acceleration to 113 km/h 0,89
6 Coast down to 97 km/h – 0,45
6 Cruise at 97 km/h for ½ lap 0
6 Moderate deceleration to 80 km/h – 1,79
6 Moderate acceleration to 104 km/h 0,45
6 Cruise at 104 km/h for ½ lap 0
6 Moderate deceleration to stop – 1,79
7 Idle 45 seconds 0
7 Hard acceleration to 88 km/h 1,79
7 Cruise at 88 km/h for ¼ lap 0
7 Moderate deceleration to 64 km/h – 2,23
7 Moderate acceleration to 88 km/h 0,89
7 Cruise at 88 km/h for ¼ lap 0
7 Moderate deceleration to 64 km/h – 2,23
7 Moderate acceleration to 80 km/h 0,89
7 Cruise at 80 km/h for ¼ lap 0
7 Moderate deceleration to 64 km/h – 2,23
7 Moderate acceleration to 80 km/h 0,89
7 Cruise at 80 km/h for ¼ lap 0
7 Moderate deceleration to stop – 2,23L 45/182 EN Official Journal of the European Union 15.2.2019
The standard road cycle is represented graphically in the following figure:15.2.2019 EN Official Journal of the European Union L 45/183
ANNEX 10
SPECIFICATIONS OF REFERENCE FUELS
1. SPECIFICATIONS OF REFERENCE FUELS FOR TESTING VEHICLES TO THE EMISSION LIMITS
1.1. Technical data on the reference fuel to be used for testing vehicles equipped with positive ignition engines
Type: Petrol (E5)
Limits(1)
Parameter Unit Test method
Minimum Maximum
Research octane number, RON 95,0 — EN 25164
prEN ISO 5164
Motor octane number, MON 85,0 — EN 25163
prEN ISO 5163
Density at 15 °C kg/m3 743 756 EN ISO 3675
EN ISO 12185
Vapour pressure kPa 56,0 60,0 EN ISO 13016-1
(DVPE)
Water content % v/v 0,015 ASTM E 1064
Distillation:
— Evaporated at 70 °C % v/v 24,0 44,0 EN-ISO 3405
— Evaporated at 100 °C % v/v 48,0 60,0 EN-ISO 3405
— Evaporated at 150 °C % v/v 82,0 90,0 EN-ISO 3405
— Final boiling point °C 190 210 EN-ISO 3405
Residue % v/v — 2,0 EN-ISO 3405
Hydrocarbon analysis:
— Olefins % v/v 3,0 13,0 ASTM D 1319
— Aromatics % v/v 29,0 35,0 ASTM D 1319
— Benzene % v/v — 1,0 EN 12177
— Saturates % v/v Report ASTM 1319
Carbon/hydrogen ratio Report
Carbon/oxygen ratio Report
Induction period(2) minutes 480 — EN-ISO 7536
Oxygen content(3) % m/m Report EN 1601L 45/184 EN Official Journal of the European Union 15.2.2019
Limits(1)
Parameter Unit Test method
Minimum Maximum
Existent gum mg/ml — 0,04 EN-ISO 6246
Sulphur content(4) mg/kg — 10 EN ISO 20846
EN ISO 20884
Copper corrosion — Class 1 EN-ISO 2160
Lead content mg/l — 5 EN 237
Phosphorus content(5) mg/l — 1,3 ASTM D 3231
Ethanol(3) % v/v 4,7 5,3 EN 1601
EN 13132
(1) The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259
Petroleum products - Determination and application of precision data in relation to methods of test have been applied and in
fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and
minimum value, the minimum difference is 4R (R = reproducibility).
Notwithstanding this measure, which is necessary for technical reasons, the manufacturer of fuels shall nevertheless aim at
a zero value where the stipulated maximum value is 2R and at the mean value in the case of quotations of maximum and
minimum limits. Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of
ISO 4259 shall be applied.
(2) The fuel may contain oxidation inhibitors and metal deactivators normally used to stabilize refinery gasoline streams, but
detergent/dispersive additives and solvent oils shall not be added.
(3) Ethanol meeting the specification of EN 15376 is the only oxygenate that shall be intentionally added to the reference fuel.
(4) The actual sulphur content of the fuel used for the Type I Test shall be reported
(5) There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.
Type: Petrol (E10)
Limits(1)
Parameter Unit Test method
Minimum Maximum
Research octane number, RON(2) 95,0 98,0 EN ISO 5164
Motor octane number, MON(2) 85,0 89,0 EN ISO 5163
Density at 15 °C kg/m3 743,0 756,0 EN ISO 12185
Vapour pressure (DVPE) kPa 56,0 60,0 EN 13016-1
Water content % v/v max 0,05 EN 12937
Appearance at – 7 °C: Clear and
bright
Distillation:
— evaporated at 70 °C % v/v 34,0 46,0 EN ISO 3405
— evaporated at 100 °C % v/v 54,0 62,0 EN ISO 3405
— evaporated at 150 °C % v/v 86,0 94,0 EN ISO 3405
— final boiling point °C 170 195 EN ISO 340515.2.2019 EN Official Journal of the European Union L 45/185
Limits(1)
Parameter Unit Test method
Minimum Maximum
Residue % v/v — 2,0 EN ISO 3405
Hydrocarbon analysis:
— olefins % v/v 6,0 13,0 EN 22854
— aromatics % v/v 25,0 32,0 EN 22854
— benzene % v/v — 1,00 EN 22854
EN 238
— saturates % v/v report EN 22854
Carbon/hydrogen ratio report
Carbon/oxygen ratio report
Induction period(3) minutes 480 — EN ISO 7536
Oxygen content(4) % m/m 3,3 3,7 EN 22854
Solvent washed gum mg/100ml — 4 EN ISO 6246
(Existent gum content)
Sulphur content(5) mg/kg — 10 EN ISO 20846
EN ISO 20884
Copper corrosion 3hrs, 50 °C — Class 1 EN ISO 2160
Lead content mg/l — 5 EN 237
Phosphorus content(6) mg/l — 1,3 ASTM D 3231
Ethanol(4) % v/v 9,0 10,0 EN 22854
(1) The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259
Petroleum products - Determination and application of precision data in relation to methods of test have been applied and in
fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and
minimum value, the minimum difference is 4R (R = reproducibility). Notwithstanding this measure, which is necessary for
technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value where the stipulated maximum value is 2R
and at the mean value in the case of quotations of maximum and minimum limits. Should it be necessary to clarify whether
a fuel meets the requirements of the specifications, the terms of ISO 4259 shall be applied.
(2) A correction factor of 0,2 for MON and RON shall be subtracted for the calculation of the final result in accordance with
EN 228:2008.
(3) The fuel may contain oxidation inhibitors and metal deactivators normally used to stabilise refinery gasoline streams, but
detergent/dispersive additives and solvent oils shall not be added.
(4) Ethanol is the only oxygenate that shall be intentionally added to the reference fuel. The Ethanol used shall conform to
EN 15376.
(5) The actual sulphur content of the fuel used for the Type I test shall be reported.
(6) There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.L 45/186 EN Official Journal of the European Union 15.2.2019
Type: Ethanol (E85)
Limits(1)
Parameter Unit Test method(2)
Minimum Maximum
Research octane number, RON 95,0 — EN ISO 5164
Motor octane number, MON 85,0 — EN ISO 5163
Density at 15 °C kg/m3 Report ISO 3675
Vapour pressure kPa 40,0 60,0 EN ISO 13016-1
(DVPE)
Sulphur content(3)(4) mg/kg — 10 EN ISO 20846
EN ISO 20884
Oxidation stability minutes 360 EN ISO 7536
Existent gum content (solvent mg/(100 ml) — 5 EN-ISO 6246
washed)
Appearance Clear and bright, visibly free of sus Visual inspection
pended or precipitated contaminants
This shall be determined at
ambient temperature or 15 °C
whichever is higher.
Ethanol and higher alcohols(7) % V/V 83 85 EN 1601
EN 13132
EN 14517
Higher alcohols (C3-C8) % V/V — 2,0
Methanol % V/V 0,5
Petrol(5) % V/V Balance EN 228
Phosphorus mg/l 0,3(6) ASTM D 3231
Water content % V/V 0,3 ASTM E 1064
Inorganic chloride content mg/l 1 ISO 6227
pHe 6,5 9,0 ASTM D 6423
Copper strip corrosion Rating Class 1 EN ISO 2160
(3h at 50 °C)
Acidity, (as acetic acid CH COOH) % m/m — 0,005 ASTM D 1613
3
(mg/l) (40)15.2.2019 EN Official Journal of the European Union L 45/187
Limits(1)
Parameter Unit Test method(2)
Minimum Maximum
Carbon/hydrogen ratio report
Carbon/oxygen ration report
(1) The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259
Petroleum products - Determination and application of precision data in relation to methods of test have been applied and in
fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and
minimum value, the minimum difference is 4R (R = reproducibility).
Notwithstanding this measure, which is necessary for technical reasons, the manufacturer of fuels shall nevertheless aim at
a zero value where the stipulated maximum value is 2R and at the mean value in the case of quotations of maximum and
minimum limits. Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of
ISO 4259 shall be applied.
(2) In cases of dispute, the procedures for resolving the dispute and interpretation of the results based on test method precision,
described in EN ISO 4259 shall be used.
(3) In cases of national dispute concerning sulphur content, either EN ISO 20846 or EN ISO 20884 shall be called up similar to
the reference in the national annex of EN 228.
(4) The actual sulphur content of the fuel used for the Type I Test shall be reported.
(5) The unleaded petrol content can be determined as 100 minus the sum of the percentage content of water and alcohols.
(6) There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.
(7) Ethanol to meet specification of EN 15376 is the only oxygenate that shall be intentionally added to this reference fuel.
1.2. Technical data on the reference fuel to be used for testing vehicles equipped with compression-ignition engine
Type: Diesel fuel (B5)
Limits(1)
Parameter Unit Test method
Minimum Maximum
Cetane number(2) 52,0 54,0 EN-ISO 5165
Density at 15 °C kg/m3 833 837 EN-ISO 3675
Distillation:
— 50 % point °C 245 — EN-ISO 3405
— 95 % point °C 345 350 EN-ISO 3405
— Final boiling point °C — 370 EN-ISO 3405
Flash point °C 55 — EN 22719
CFPP °C — – 5 EN 116
Viscosity at 40 °C mm2/s 2,3 3,3 EN-ISO 3104
Polycyclic aromatic hydrocarbons % m/m 2,0 6,0 EN 12916
Sulphur content(3) mg/kg — 10 EN ISO 20846
EN ISO 20884L 45/188 EN Official Journal of the European Union 15.2.2019
Limits(1)
Parameter Unit Test method
Minimum Maximum
Copper corrosion — Class 1 EN-ISO 2160
Conradson carbon residue % m/m — 0,2 EN-ISO 10370
(10 % DR)
Ash content % m/m — 0,01 EN-ISO 6245
Water content % m/m — 0,02 EN-ISO 12937
Neutralisation (strong acid) number mg KOH/g — 0,02 ASTM D 974
Oxidation stability(4) mg/ml — 0,025 EN-ISO 12205
Lubricity (HFRR wear scan μm — 400 EN ISO 12156
diameter at 60 °C)
Oxidation stability at 110 °C(4)(6) h 20,0 EN 14112
FAME(5) % v/v 4,5 5,5 EN 14078
(1) The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259
Petroleum products – Determination and application of precision data in relation to methods of test have been applied and in
fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and
minimum value, the minimum difference is 4R (R = reproducibility).
Notwithstanding this measure, which is necessary for technical reasons, the manufacturer of fuels shall nevertheless aim at
a zero value where the stipulated maximum value is 2R and at the mean value in the case of quotations of maximum and
minimum limits. Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of
ISO 4259 shall be applied.
(2) The range for cetane number is not in accordance with the requirements of a minimum range of 4R. However, in the case of
a dispute between fuel supplier and fuel user, the terms of ISO 4259 may be used to resolve such disputes provided replicate
measurements, of sufficient number to archive the necessary precision, are made in preference to single determinations.
(3) The actual sulphur content of the fuel used for the Type I Test shall be reported.
(4) Even though oxidation stability is controlled, it is likely that shelf life will be limited. Advice shall be sought from the supplier
as to storage conditions and life.
(5) FAME content to meet the specification of EN 14214.
(6) Oxidation stability can be demonstrated by EN-ISO 12205 or by EN 14112. This requirement shall be reviewed based on
CEN/TC19 evaluations of oxidative stability performance and test limits.
Type: Diesel fuel (B7)
Limits(1)
Parameter Unit Test method
Minimum Maximum
Cetane Index 46,0 EN ISO 4264
Cetane number(2) 52,0 56,0 EN ISO 5165
Density at 15 °C kg/m3 833,0 837,0 EN ISO 1218515.2.2019 EN Official Journal of the European Union L 45/189
Limits(1)
Parameter Unit Test method
Minimum Maximum
Distillation:
— 50 % point °C 245,0 — EN ISO 3405
— 95 % point °C 345,0 360,0 EN ISO 3405
— final boiling point °C — 370,0 EN ISO 3405
Flash point °C 55 — EN ISO 2719
Cloud point °C — – 10 EN 23015
Viscosity at 40 °C mm2/s 2,30 3,30 EN ISO 3104
Polycyclic aromatic hydrocarbons % m/m 2,0 4,0 EN 12916
Sulphur content mg/kg — 10,0 EN ISO 20846
EN ISO 20884
Copper corrosion 3hrs, 50 °C — Class 1 EN ISO 2160
Conradson carbon residue % m/m — 0,20 EN ISO 10370
(10 % DR)
Ash content % m/m — 0,010 EN ISO 6245
Total contamination mg/kg — 24 EN 12662
Water content mg/kg — 200 EN ISO 12937
Acid number mg KOH/g — 0,10 EN ISO 6618
Lubricity (HFRR wear scan μm — 400 EN ISO 12156
diameter at 60 °C)
Oxidation stability at 110 °C(3) h 20,0 EN 15751
FAME(4) % v/v 6,0 7,0 EN 14078
(1) The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259
Petroleum products – Determination and application of precision data in relation to methods of test have been applied and in
fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and
minimum value, the minimum difference is 4R (R = reproducibility). Notwithstanding this measure, which is necessary for
technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value where the stipulated maximum value is 2R
and at the mean value in the case of quotations of maximum and minimum limits. Should it be necessary to clarify whether
a fuel meets the requirements of the specifications, the terms of ISO 4259 shall be applied.
(2) The range for cetane number is not in accordance with the requirements of a minimum range of 4R. However, in the case of
a dispute between fuel supplier and fuel user, the terms of ISO 4259 may be used to resolve such disputes provided replicate
measurements, of sufficient number to archive the necessary precision, are made in preference to single determinations.
(3) Even though oxidation stability is controlled, it is likely that shelf life will be limited. Advice shall be sought from the supplier
as to storage conditions and life.
(4) FAME content to meet the specification of EN 14214.L 45/190 EN Official Journal of the European Union 15.2.2019
2. SPECIFICATIONS OF REFERENCE FUEL TO BE USED FOR TESTING VEHICLES EQUIPPED WITH POSITIVE IGNITION ENGINES
AT LOW AMBIENT TEMPERATURE – TYPE VI TEST
Type: Petrol (E5)
Limits(1)
Parameter Unit Test method
Minimum Maximum
Research octane number, RON 95,0 — EN 25164
Pr. EN ISO 5164
Motor octane number, MON 85,0 — EN 25163
Pr. EN ISO 5163
Density at 15 °C kg/m3 743 756 EN ISO 3675
EN ISO 12185
Vapour pressure kPa 56,0 95,0 EN ISO 13016-1
(DVPE)
Water content % v/v 0,015 ASTM E 1064
Distillation:
— Evaporated at 70 °C % v/v 24,0 44,0 EN-ISO 3405
— Evaporated at 100 °C % v/v 50,0 60,0 EN-ISO 3405
— Evaporated at 150 °C % v/v 82,0 90,0 EN-ISO 3405
— Final boiling point °C 190 210 EN-ISO 3405
Residue % v/v — 2,0 EN-ISO 3405
Hydrocarbon analysis:
— Olefins % v/v 3,0 13,0 ASTM D 1319
— Aromatics % v/v 29,0 35,0 ASTM D 1319
— Benzene % v/v — 1,0 EN 12177
— Saturates % v/v Report ASTM 1319
Carbon/hydrogen ratio Report
Carbon/oxygen ratio Report
Induction period(2) minutes 480 — EN-ISO 753615.2.2019 EN Official Journal of the European Union L 45/191
Limits(1)
Parameter Unit Test method
Minimum Maximum
Oxygen content(3) % m/m Report EN 1601
Existent gum mg/ml — 0,04 EN-ISO 6246
Sulphur content(4) mg/kg — 10 EN ISO 20846
EN ISO 20884
Copper corrosion — Class 1 EN-ISO 2160
Lead content mg/l — 5 EN 237
Phosphorus content(5) mg/l — 1,3 ASTM D 3231
Ethanol(3) % v/v 4,7 5,3 EN 1601
EN 13132
(1) The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259
Petroleum products - Determination and application of precision data in relation to methods of test have been applied and in
fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and
minimum value, the minimum difference is 4R (R = reproducibility).
Notwithstanding this measure, which is necessary for technical reasons, the manufacturer of fuels shall nevertheless aim at
a zero value where the stipulated maximum value is 2R and at the mean value in the case of quotations of maximum and
minimum limits. Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of
ISO 4259 shall be applied.
(2) The fuel may contain oxidation inhibitors and metal deactivators normally used to stabilize refinery gasoline streams, but
detergent/dispersive additives and solvent oils shall not be added.
(3) Ethanol meeting the specification of EN 15376 is the only oxygenate that shall be intentionally added to the reference fuel.
(4) The actual sulphur content of the fuel used for the Type VI Test shall be reported.
(5) There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.
Type: Petrol (E10)
Limits(1)
Parameter Unit Test method
Minimum Maximum
Research octane number, RON(2) 95,0 98,0 EN ISO 5164
Motor octane number, MON(2) 85,0 89,0 EN ISO 5163
Density at 15 °C kg/m3 743,0 756,0 EN ISO 12185
Vapour pressure (DVPE) kPa 56,0 95,0 EN 13016-1
Water content % v/v max 0,05 EN 12937
Appearance at – 7 °C: Clear and
brightL 45/192 EN Official Journal of the European Union 15.2.2019
Limits(1)
Parameter Unit Test method
Minimum Maximum
Distillation:
— evaporated at 70 °C % v/v 34,0 46,0 EN ISO 3405
— evaporated at 100 °C % v/v 54,0 62,0 EN ISO 3405
— evaporated at 150 °C % v/v 86,0 94,0 EN ISO 3405
— final boiling point °C 170 195 EN ISO 3405
Residue % v/v — 2,0 EN ISO 3405
Hydrocarbon analysis:
— olefins % v/v 6,0 13,0 EN 22854
— aromatics % v/v 25,0 32,0 EN 22854
— benzene % v/v — 1,00 EN 22854
EN 238
— saturates % v/v report EN 22854
Carbon/hydrogen ratio report
Carbon/oxygen ratio report
Induction period(3) minutes 480 — EN ISO 7536
Oxygen content(4) % m/m 3,3 3,7 EN 22854
Solvent washed gum mg/100 ml — 4 EN ISO 6246
(Existent gum content)
Sulphur content(5) mg/kg — 10 EN ISO 20846
EN ISO 20884
Copper corrosion 3hrs, 50 °C — Class 1 EN ISO 2160
Lead content mg/l — 5 EN 23715.2.2019 EN Official Journal of the European Union L 45/193
Limits(1)
Parameter Unit Test method
Minimum Maximum
Phosphorus content(6) mg/l — 1,3 ASTM D 3231
Ethanol(4) % v/v 9,0 10,0 EN 22854
(1) The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259
Petroleum products - Determination and application of precision data in relation to methods of test have been applied and in
fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and
minimum value, the minimum difference is 4R (R = reproducibility). Notwithstanding this measure, which is necessary for
technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value where the stipulated maximum value is 2R
and at the mean value in the case of quotations of maximum and minimum limits. Should it be necessary to clarify whether
a fuel meets the requirements of the specifications, the terms of ISO 4259 shall be applied.
(2) A correction factor of 0,2 for MON and RON shall be subtracted for the calculation of the final result in accordance with
EN 228:2008.
(3) The fuel may contain oxidation inhibitors and metal deactivators normally used to stabilise refinery gasoline streams, but
detergent/dispersive additives and solvent oils shall not be added.
(4) Ethanol is the only oxygenate that shall be intentionally added to the reference fuel. The Ethanol used shall conform to
EN 15376.
(5) The actual sulphur content of the fuel used for the Type I test shall be reported.
(6) There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.
Type: Ethanol (E75)
Limits(1)
Parameter Unit Test method(2)
Minimum Maximum
Research octane number, RON 95 — EN ISO 5164
Motor octane number, MON 85 — EN ISO 5163
Density at 15 °C kg/m3 report EN ISO 12185
Vapour pressure kPa 50 60 EN ISO 13016-1
(DVPE)
Sulphur content(3)(4) mg/kg — 10 EN ISO 20846
EN ISO 20884
Oxidation stability minutes 360 — EN ISO 7536
Existent gum content mg/100ml — 4 EN ISO 6246
(solvent washed)
Appearance shall be determined at Clear and bright, visibly free of sus Visual inspection
ambient temperature or 15 °C pended or precipitated contaminants
whichever is higher.
Ethanol and higher alcohols(7) % (V/V) 70 80 EN 1601
EN 13132
EN 1451 7L 45/194 EN Official Journal of the European Union 15.2.2019
Limits(1)
Parameter Unit Test method(2)
Minimum Maximum
Higher alcohols (C - C ) % (V/V) — 2
3 8
Methanol — 0,5
Petrol(5) % (V/V) Balance EN 228
Phosphorus mg/l 0,3(6) EN 15487
ASTM D 3231
Water content % (V/V) — 0,3 ASTM E 1064
EN 15 489
Inorganic chloride content mg/1 — 1 ISO 6227 -
EN 15492
pHe 6,5 9 ASTM D 6423
EN 15490
Copper strip corrosion Rating Class I EN ISO 2160
(3h at 50 °C)
Acidity % (m/m) 0,005 ASTM 0161 3
(as acetic acid CH COOH) EN 15491
3 mg/1 40
Carbon/hydrogen ratio report
Carbon/oxygen ratio report
(1) The values referred to in the specifications are ‘true values’. When establishing the value limits, the terms of ISO 4259
Petroleum products - Determination and application of precision data in relation to methods of test were applied. When
fixing a minimum value, a minimum difference of 2R above zero was taken into account. When fixing a maximum and
minimum value, the minimum difference used was 4R (R = reproducibility). Notwithstanding this procedure, which is neces
sary for technical reasons, fuel manufacturers shall aim for a zero value where the stipulated maximum value is 2R and for
the mean value for quotations of maximum and minimum limits. Where it is necessary to clarify whether fuel meets the
requirements of the specifications, the ISO 4259 terms shall be applied.
(2) In cases of dispute, the procedures for resolving the dispute and interpretation of the results based on test method precision,
described in EN ISO 4259 shall be used.
(3) In cases of national dispute concerning sulphur content, either EN ISO 20846 or EN ISO 20884 shall be called up similar to
the reference in the national annex of EN 228.
(4) The actual sulphur content of the fuel used for the Type VI test shall be reported.
(5) The unleaded petrol content may be determined as 100 minus the sum of the percentage content of water and alcohols.
(6) There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.
(7) Ethanol to meet specification of EN 15376 is the only oxygenate that shall be intentionally added to this reference fuel.15.2.2019 EN Official Journal of the European Union L 45/195
ANNEX 10A
SPECIFICATIONS OF GASEOUS REFERENCE FUELS
1. SPECIFICATIONS OF GASEOUS REFERENCE FUELS
1.1. Technical data of the LPG reference fuels used for testing vehicles to the emission limits given in Table 1 in
paragraph 5.3.1.4 of this Regulation – Type I test
Type: LPG
Parameter Unit Fuel A Fuel B Test method
Composition: ISO 7941
C -content per cent vol 30 ± 2 85 ± 2
3
C -content per cent vol Balance(1) Balance(1)
4
< C , > C per cent vol max. 2 max. 2
3 4
Olefins per cent vol max. 12 max. 15
Evaporation residue mg/kg max. 50 max. 50 ISO 13757 or
EN 15470
Water at 0 °C free free EN 15469
Total sulphur content mg/kg max. 50 max. 50 EN 24260 or
ASTM 6667
Hydrogen sulphide none none ISO 8819
Copper strip corrosion rating Class 1 Class 1 ISO 6251(2)
Odour characteristic characteristic
Motor octane number min. 89 min. 89 EN 589 Annex B
(1) Balance has to be read as follows: balance = 100 – C ≤ C ≥ C.
3 3 4
(2) This method may not accurately determine the presence of corrosive materials if the sample contains corrosion inhibitors or
other chemicals which diminish the corrosivity of the sample to the copper strip. Therefore, the addition of such compounds
for the sole purpose of biasing the test method is prohibited.
1.2. Technical data of the NG or biomethane reference fuels
Type: NG/biomethane
Limits
Characteristics Units Basis Test Method
min. max.
Reference fuel G
20
Composition:
Methane per cent 100 99 100 ISO 6974
mole
Balance(1) per cent — — 1 ISO 6974
moleL 45/196 EN Official Journal of the European Union 15.2.2019
Limits
Characteristics Units Basis Test Method
min. max.
N per cent ISO 6974
2
mole
Sulphur content mg/m3(2) — — 10 ISO 6326-5
Wobbe Index (net) MJ/m3(3) 48,2 47,2 49,2
Reference fuel G
25
Composition:
Methane per cent 86 84 88 ISO 6974
mole
Balance(1) per cent — — 1 ISO 6974
mole
N per cent 14 12 16 ISO 6974
2
mole
Sulphur content mg/m3(2) — — 10 ISO 6326-5
Wobbe Index (net) MJ/m3(3) 39,4 38,2 40,6
(1) Inerts (different from N) + C + C .
2 2 2+
(2) Value to be determined at 293,2 K (20 °C) and 101,3 kPa.
(3) Value to be determined at 273,2 K (0 °C) and 101,3 kPa.
1.3. Technical data of hydrogen for internal combustion engines
Type: hydrogen for internal combustion engines
Limits
Characteristics Units Test method
minimum maximum
Hydrogen purity % mole 98 100 ISO 14687-1
Total hydrocarbon µmol/mol 0 100 ISO 14687-1
Water(1) µmol/mol 0 (2) ISO 14687-1
Oxygen µmol/mol 0 (2) ISO 14687-1
Argon µmol/mol 0 (2) ISO 14687-1
Nitrogen µmol/mol 0 (2) ISO 14687-1
CO µmol/mol 0 1 ISO 14687-1
Sulphur µmol/mol 0 2 ISO 14687-1
Permanent particulates(3) ISO 14687-1
(1) Not to be condensed
(2) Combined water, oxygen, nitrogen and argon: 1 900 µmol/mol.
(3) The hydrogen shall not contain dust, sand, dirt, gums, oils, or other substances in an amount sufficient to damage the fuelling
station equipment or the vehicle (engine) being fuelled.15.2.2019 EN Official Journal of the European Union L 45/197
1.4. Technical data of hydrogen for fuel cell vehicles
Type: Hydrogen for fuel cell vehicles
Limits
Characteristics Units Test method
minimum maximum
Hydrogen fuel(1) % mole 99,99 100 ISO 14687-2
Total gases(2) µmol/mol 0 100
Total hydrocarbon µmol/mol 0 2 ISO 14687-2
Water µmol/mol 0 5 ISO 14687-2
Oxygen µmol/mol 0 5 ISO 14687-2
Helium (He), Nitrogen (N ), Argon µmol/mol 0 100 ISO 14687-2
2
(Ar)
CO µmol/mol 0 2 ISO 14687-2
2
CO µmol/mol 0 0,2 ISO 14687-2
Total sulphur compounds µmol/mol 0 0,004 ISO 14687-2
Formaldehyde (HCHO) µmol/mol 0 0,01 ISO 14687-2
Formic acid (HCOOH) µmol/mol 0 0,2 ISO 14687-2
Ammonia (NH ) µmol/mol 0 0,1 ISO 14687-2
3
Total halogenated compounds µmol/mol 0 0,05 ISO 14687-2
Particulates size µm 0 10 ISO 14687-2
Particulates concentration µg/l 0 1 ISO 14687-2
(1) The hydrogen fuel index is determined by subtracting the total content of non-hydrogen gaseous constituents listed in the
table (Total gases), expressed in mole per cent, from 100 mole per cent. It is less than the sum of the maximum allowable
limits of all non-hydrogen constituents shown in the Table.
(2) The value of total gases is summation of the values of the non-hydrogen constituents listed in the table, except the
particulates.
1.5. Technical data of hydrogen and the NG/biomethane fuels
Type: H NG
2
The hydrogen and the NG/biomethane fuels composing a H NG mixture, shall comply separately with their
2
corresponding characteristics, expressed in this annex.L 45/198 EN Official Journal of the European Union 15.2.2019
ANNEX 11
ON-BOARD DIAGNOSTICS (OBD) FOR MOTOR VEHICLES
1. INTRODUCTION
This annex applies to the functional aspects of On-Board Diagnostic (OBD) system for the emission control
of motor vehicles.
2. DEFINITIONS
For the purposes of this annex only:
2.1. ‘OBD’ means an on-board diagnostic system for emission control which shall have the capability of
identifying the likely area of malfunction by means of fault codes stored in computer memory.
2.2. ‘Vehicle type’ means a category of power-driven vehicles which do not differ in essential engine and
OBD system characteristics.
2.3. ‘Vehicle family’ means a manufacturer's grouping of vehicles which, through their design, are expected to
have similar exhaust emission and OBD system characteristics. Each vehicle of this family shall have complied
with the requirements of this Regulation as defined in Appendix 2 to this annex.
2.4. ‘Emission control system’ means the electronic engine management controller and any emission-related
component in the exhaust or evaporative system which supplies an input to or receives an output from this
controller.
2.5. ‘Malfunction indicator (MI)’ means a visible or audible indicator that clearly informs the driver of the vehicle
in the event of a malfunction of any emission-related component connected to the OBD system, or the
OBD system itself.
2.6. ‘Malfunction’ means the failure of an emission-related component or system that would result in emissions
exceeding the limits in paragraph 3.3.2 of this annex or if the OBD system is unable to fulfil the basic
monitoring requirements of this annex.
2.7. ‘Secondary air’ refers to air introduced into the exhaust system by means of a pump or aspirator valve or
other means that is intended to aid in the oxidation of HC and CO contained in the exhaust gas stream.
2.8. ‘Engine misfire’ means lack of combustion in the cylinder of a positive ignition engine due to absence of
spark, poor fuel metering, poor compression or any other cause. In terms of OBD monitoring it is that
percentage of misfires out of a total number of firing events (as declared by the manufacturer) that would
result in emissions exceeding the limits given in paragraph 3.3.2 of this annex or that percentage that could
lead to an exhaust catalyst, or catalysts, overheating causing irreversible damage.
2.9. ‘Type I test’ means the driving cycle (Parts One and Two) used for emission approvals, as detailed in
Tables A4a/1 and A4a/2 of Annex 4a to this Regulation.
2.10. A ‘driving cycle’ consists of engine key-on, a driving mode where a malfunction would be detected if present,
and engine key-off.
2.11. A ‘warm-up cycle’ means sufficient vehicle operation such that the coolant temperature has risen by a least
22 K from engine starting and reaches a minimum temperature of 343 K (70 °C).
2.12. A ‘Fuel trim’ refers to feedback adjustments to the base fuel schedule. Short-term fuel trim refers to dynamic
or instantaneous adjustments. Long-term fuel trim refers to much more gradual adjustments to the fuel
calibration schedule than short-term trim adjustments. These long-term adjustments compensate for vehicle
differences and gradual changes that occur over time.15.2.2019 EN Official Journal of the European Union L 45/199
2.13. A ‘Calculated load value’ refers to an indication of the current airflow divided by peak airflow, where peak
airflow is corrected for altitude, if available. This definition provides a dimensionless number that is not
engine specific and provides the service technician with an indication of the proportion of engine capacity
that is being used (with wide open throttle as 100 per cent);
Current airflow Atmospheric pressure ðat sea levelÞ
CLV¼ �
peak airflow ðat sea levelÞ Barometric pressure
2.14. ‘Permanent emission default mode’ refers to a case where the engine management controller permanently
switches to a setting that does not require an input from a failed component or system where such a failed
component or system would result in an increase in emissions from the vehicle to a level above the limits
given in paragraph 3.3.2 of this annex.
2.15. ‘Power take-off unit’ means an engine-driven output provision for the purposes of powering auxiliary, vehicle
mounted, equipment.
2.16. ‘Access’ means the availability of all emission-related OBD data including all fault codes required for the
inspection, diagnosis, servicing or repair of emissions-related parts of the vehicle, via the serial interface for
the standard diagnostic connection (pursuant to paragraph 6.5.3.5 of Appendix 1 to this annex).
2.17. ‘Unrestricted’ means:
2.17.1. Access not dependent on an access code obtainable only from the manufacturer, or a similar device; or
2.17.2. Access allowing evaluation of the data produced without the need for any unique decoding information,
unless that information itself is standardised.
2.18. ‘Standardised’ means that all data stream information, including all fault codes used, shall be produced only in
accordance with industry standards which, by virtue of the fact that their format and their permitted options
are clearly defined, provide for a maximum level of harmonisation in the motor vehicle industry, and whose
use is expressly permitted in this Regulation.
2.19. ‘Repair information’ means all information required for diagnosis, servicing, inspection, periodic monitoring
or repair of the vehicle and which the manufacturers provide for their authorised dealers/repair shops. Where
necessary, such information shall include service handbooks, technical manuals, diagnosis information
(e.g. minimum and maximum theoretical values for measurements), wiring diagrams, the software calibration
identification number applicable to a vehicle type, instructions for individual and special cases, information
provided concerning tools and equipment, data record information and two-directional monitoring and test
data. The manufacturer shall not be obliged to make available that information which is covered by
intellectual property rights or constitutes specific know-how of manufacturers and/or OEM suppliers; in this
case the necessary technical information shall not be improperly withheld.
2.20. ‘Deficiency’ means, in respect of vehicle OBD systems, that up to two separate components or systems that
are monitored contain temporary or permanent operating characteristics that impair the otherwise efficient
OBD monitoring of those components or systems or do not meet all of the other detailed requirements for
OBD. Vehicles may be type-approved, registered and sold with such deficiencies according to the
requirements of paragraph 4 of this annex.
3. REQUIREMENTS AND TESTS
3.1. All vehicles shall be equipped with an OBD system so designed, constructed and installed in a vehicle as to
enable it to identify types of deterioration or malfunction over the entire life of the vehicle. In achieving this
objective the Type Approval Authority shall accept that vehicles which have travelled distances in excess of
the Type V durability distance (according to Annex 9 to this Regulation) referred to in paragraph 3.3.1 of this
annex, may show some deterioration in OBD system performance such that the emission limits given in
paragraph 3.3.2 of this annex may be exceeded before the OBD system signals a failure to the driver of the
vehicle.
3.1.1. Access to the OBD system required for the inspection, diagnosis, servicing or repair of the vehicle shall be
unrestricted and standardised. All emission-related fault codes shall be consistent with paragraph 6.5.3.4 of
Appendix 1 to this annex.L 45/200 EN Official Journal of the European Union 15.2.2019
3.1.2. Not later than three months after the manufacturer has provided any authorised dealer or repair shop with
repair information, the manufacturer shall make that information (including all subsequent amendments and
supplements) available upon reasonable and non-discriminatory payment and shall notify the Type Approval
Authority accordingly.
In the event of failure to comply with these provisions the Type Approval Authority shall act to ensure that
repair information is available, in accordance with the procedures laid down for type approval and in-service
surveys.
3.2. The OBD system shall be so designed, constructed and installed in a vehicle as to enable it to comply with
the requirements of this annex during conditions of normal use.
3.2.1. Temporary disablement of the OBD system
3.2.1.1. A manufacturer may disable the OBD system if its ability to monitor is affected by low fuel levels. Disablement
shall not occur when the fuel tank level is above 20 per cent of the nominal capacity of the fuel tank.
3.2.1.2. A manufacturer may disable the OBD system at ambient engine starting temperatures below 266 K (– 7 °C)
or at elevations over 2 500 metres above sea level provided the manufacturer submits data and/or an
engineering evaluation which adequately demonstrate that monitoring would be unreliable when such
conditions exist. A manufacturer may also request disablement of the OBD system at other ambient engine
starting temperatures if he demonstrates to the authority with data and/or an engineering evaluation that
misdiagnosis would occur under such conditions. It is not necessary to illuminate the Malfunction
Indicator (MI) if the OBD thresholds are exceeded during a regeneration provided no defect is present.
3.2.1.3. For vehicles designed to accommodate the installation of power take-off units, disablement of affected
monitoring systems is permitted provided disablement occurs only when the power take-off unit is active.
In addition to the provisions of this paragraph the manufacturer may temporarily disable the OBD system in
the following conditions:
(a) For flex fuel or mono/bi fuel gas vehicles during 1 minute after re-fuelling to allow for the recognition of
fuel quality and composition by the ECU;
(b) For bi fuel vehicles during 5 seconds after fuel switching to allow for readjusting engine parameters;
(c) The manufacturer may deviate from these time limits if it can demonstrate that stabilisation of the
fuelling system after re-fuelling or fuel switching takes longer for justified technical reasons. In any case,
the OBD system shall be re-enabled as soon as either the fuel quality and composition is recognised, or
the engine parameters are readjusted.
3.2.2. Engine misfire in vehicles equipped with positive ignition engines
3.2.2.1. Manufacturers may adopt higher misfire percentage malfunction criteria than those declared to the authority,
under specific engine speed and load conditions where it can be demonstrated to the authority that the
detection of lower levels of misfire would be unreliable.
3.2.2.2. When a manufacturer can demonstrate to the authority that the detection of higher levels of misfire
percentages is still not feasible, or that misfire cannot be distinguished from other effects (e.g. rough roads,
transmission shifts, after engine starting; etc.) the misfire monitoring system may be disabled when such
conditions exist.
3.2.3. Identification of deterioration or malfunctions may be also be done outside a driving cycle (e.g. after engine
shutdown).
3.3. Description of tests
3.3.1. The tests are carried out on the vehicle used for the Type V durability test, given in Annex 9 to this
Regulation, and using the test procedure in Appendix 1 to this annex. Tests are carried out at the conclusion
of the Type V durability testing.
When no Type V durability testing is carried out, or at the request of the manufacturer, a suitably aged and
representative vehicle may be used for these OBD demonstration tests.15.2.2019 EN Official Journal of the European Union L 45/201
3.3.2. The OBD system shall indicate the failure of an emission-related component or system when that failure
results in emissions exceeding the threshold limits given in Table A11/1, Table A11/2, or Table A11/3 in
accordance with the provisions of paragraph 12 of this Regulation.
3.3.2.1. The OBD thresholds limits for vehicles that are type approved according to the emission limits set out in
Table 1 in paragraph 5.3.1.4 of this Regulation from the dates given in paragraphs 12.2.3 and 12.2.4 of this
Regulation for new type approvals and new vehicles respectively are given in Table A11/1:
Table A11/1
Final OBD threshold limits
Mass of
Mass of Mass of Number
Mass of carbon non-methane
Reference oxides of particulate of particu
monoxide hydro
mass nitrogen matter(1) lates(1)
carbons
(RM)
(kg)
(CO) (NMHC) (NO) (PM) (PN)
x
(mg/km) (mg/km) (mg/km) (mg/km) (#/km)
Category Class PI CI PI CI PI CI CI PI CI PI
M — All 1 900 1 750 170 290 90 140 12 12
N I RM ≤ 1 305 1 900 1 750 170 290 90 140 12 12
1
II 1 305 < RM 3 400 2 200 225 320 110 180 12 12
≤ 1 760
III 1 760 < RM 4 300 2 500 270 350 120 220 12 12
N — All 4 300 2 500 270 350 120 220 12 12
2
Key PI Positive Ignition
CI Compression Ignition.
(1) Positive ignition particulate mass and number limits apply only to vehicles with direct injection engines
3.3.2.2. Until the dates specified in paragraphs 12.2.3 and 12.2.4 of this Regulation for new type approvals and new
vehicles respectively, the OBD threshold limits in Table A11/2 shall be applied to vehicles that are type
approved according to the emission limits set out in Table 1 in paragraph 5.3.1.4 of this Regulation, upon the
choice of the manufacturer:
Table A11/2
Preliminary OBD threshold limits
Mass of Mass of
Mass of carbon Mass of oxides
non-methane particulate
Reference mass monoxide of nitrogen
hydrocarbons matter(1)
(RM)
(kg)
(CO) (NMHC) (NO) (PM)
x
(mg/km) (mg/km) (mg/km) (mg/km)
Category Class PI CI PI CI PI CI CI PI
M — All 1 900 1 750 170 290 150 180 25 25
N I RM ≤ 1 305 1 900 1 750 170 290 150 180 25 25
1
II 1 305 < RM 3 400 2 200 225 320 190 220 25 25
≤ 1 760
III 1 760 < RM 4 300 2 500 270 350 210 280 30 30L 45/202 EN Official Journal of the European Union 15.2.2019
Mass of Mass of
Mass of carbon Mass of oxides
non-methane particulate
Reference mass monoxide of nitrogen
hydrocarbons matter(1)
(RM)
(kg)
(CO) (NMHC) (NO) (PM)
x
(mg/km) (mg/km) (mg/km) (mg/km)
N — All 4 300 2 500 270 350 210 280 30 30
2
Key PI Positive Ignition
CI Compression Ignition.
(1) Positive ignition particulate mass and number limits apply only to vehicles with direct injection engines
3.3.2.3. The OBD thresholds limits for compression ignition vehicles that comply with the emission limit values set
out Table 1 in paragraph 5.3.1.4 of this Regulation and type-approved before the dates given in
paragraph 12.2.1 of this Regulation are contained in the Table A11/3. These threshold limits shall cease to
apply from the dates set out in paragraph 12.2.2 of this Regulation for new vehicles to be registered, sold or
entered into service.
Table A11/3
Interim OBD threshold limits
Mass of
Mass of Mass of Mass of
non-methane
carbon oxides of particulate
Reference mass hydro
monoxide nitrogen matter
(RM) carbons
(kg)
(CO) (NMHC) (NO) (PM)
x
(mg/km) (mg/km) (mg/km) (mg/km)
Category Class CI CI CI CI
M — All 1 900 320 240 50
N I RM ≤ 1 305 1 900 320 240 50
1
II 1 305 < RM ≤ 1 760 2 400 360 315 50
III 1 760 < RM 2 800 400 375 50
N — All 2 800 400 375 50
2
Key PI Positive Ignition
CI Compression Ignition.
3.3.3. Monitoring requirements for vehicles equipped with positive ignition engines.
In satisfying the requirements of paragraph 3.3.2 of this annex the OBD system shall, at a minimum, monitor
for:
3.3.3.1. The reduction in the efficiency of the catalytic converter with respect to emissions of NMHC and NO. Manu
x
facturers may monitor the front catalyst alone or in combination with the next catalyst(s) downstream. Each
monitored catalyst or catalyst combination shall be considered malfunctioning when the emissions exceed the
NMHC or NO threshold limits provided for by paragraph 3.3.2 of this annex.
x
3.3.3.2. The presence of engine misfire in the engine operating region bounded by the following lines:
(a) A maximum speed of 4 500 min– 1 or 1 000 min– 1 greater than the highest speed occurring during
a Type I Test cycle, whichever is the lower;15.2.2019 EN Official Journal of the European Union L 45/203
(b) The positive torque line (i.e. engine load with the transmission in neutral);
(c) A line joining the following engine operating points: the positive torque line at 3 000 min– 1 and a point
on the maximum speed line defined in (a) above with the engine's manifold vacuum at 13,33 kPa lower
than that at the positive torque line.
3.3.3.3. Oxygen sensor deterioration
This paragraph shall mean that the deterioration of all oxygen sensors fitted and used for monitoring
malfunctions of the catalytic converter according to the requirements of this annex shall be monitored.
3.3.3.4. If active on the selected fuel, other emission control system components or systems, or emission related
power train components or systems which are connected to a computer, the failure of which may result in
tailpipe emissions exceeding the OBD threshold limits given in paragraph 3.3.2 of this annex.
3.3.3.5. Unless otherwise monitored, any other emission-related power-train component connected to a computer,
including any relevant sensors to enable monitoring functions to be carried out, shall be monitored for circuit
continuity.
3.3.3.6. The electronic evaporative emission purge control shall, at a minimum, be monitored for circuit continuity.
3.3.3.7. For direct injection positive ignition engines any malfunction, which may lead to emissions exceeding the
particulate threshold limits provided for by paragraph 3.3.2 of this annex and which has to be monitored
according to the requirements of this annex for compression ignition engines, shall be monitored.
3.3.4. Monitoring requirements for vehicles equipped with compression-ignition engines
In satisfying the requirements of paragraph 3.3.2 of this annex the OBD system shall monitor:
3.3.4.1. Where fitted, reduction in the efficiency of the catalytic converter.
3.3.4.2. Where fitted, the functionality and integrity of the particulate trap.
3.3.4.3. The fuel-injection system electronic fuel quantity and timing actuator(s) is/are monitored for circuit continuity
and total functional failure.
3.3.4.4. Other emission control system components or systems, or emission-related power-train components or
systems, which are connected to a computer, the failure of which may result in exhaust emissions exceeding
the OBD threshold limits given in paragraph 3.3.2 of this annex. Examples of such systems or components
are those for monitoring and control of air mass-flow, air volumetric flow (and temperature), boost pressure
and inlet manifold pressure (and relevant sensors to enable these functions to be carried out).
3.3.4.5. Unless otherwise monitored, any other emission-related power-train component connected to a computer
shall be monitored for circuit continuity.
3.3.4.6. Malfunctions and the reduction in efficiency of the EGR system shall be monitored.
3.3.4.7. Malfunctions and the reduction in efficiency of a NO after-treatment system using a reagent and the reagent
x
dosing sub-system shall be monitored.
3.3.4.8. Malfunctions and the reduction in efficiency of NO after-treatment not using a reagent shall be monitored.
x
3.3.5. Manufacturers may demonstrate to the Type Approval Authority that certain components or systems need
not be monitored if, in the event of their total failure or removal, emissions do not exceed the OBD threshold
limits given in paragraph 3.3.2 of this annex.
3.3.5.1. The following devices should however be monitored for total failure or removal (if removal would cause the
applicable emission limits in paragraph 5.3.1.4 of this Regulation to be exceeded):
(a) A particulate trap fitted to compression ignition engines as a separate unit or integrated into a combined
emission control device;
(b) A NO after treatment system fitted to compression ignition engines as a separate unit or integrated into
x
a combined emission control device;L 45/204 EN Official Journal of the European Union 15.2.2019
(c) A Diesel Oxidation Catalyst (DOC) fitted to compression ignition engines as a separate unit or integrated
into a combined emission control device.
3.3.5.2. The devices referred to in paragraph 3.3.5.1 of this annex shall also be monitored for any failure that would
result in exceeding the applicable OBD threshold limits.
3.4. A sequence of diagnostic checks shall be initiated at each engine start and completed at least once provided
that the correct test conditions are met. The test conditions shall be selected in such a way that they all occur
under normal driving as represented by the Type I test.
3.5. Activation of malfunction indicator (MI)
3.5.1. The OBD system shall incorporate a malfunction indicator readily perceivable to the vehicle operator. The MI
shall not be used for any other purpose except to indicate emergency start-up or limp-home routines to the
driver. The MI shall be visible in all reasonable lighting conditions. When activated, it shall display a symbol
in conformity with ISO 2575. A vehicle shall not be equipped with more than one general purpose MI for
emission-related problems. Separate specific purpose tell tales (e.g. brake system, fasten seat belt, oil pressure,
etc.) are permitted. The use of red colour for an MI is prohibited.
3.5.2. For strategies requiring more than two preconditioning cycles for MI activation, the manufacturer shall
provide data and/or an engineering evaluation which adequately demonstrates that the monitoring system is
equally effective and timely in detecting component deterioration. Strategies requiring on average more than
ten driving cycles for MI activation are not accepted. The MI shall also activate whenever the engine control
enters a permanent emission default mode of operation if the emission limits given in paragraph 3.3.2 of this
annex are exceeded or if the OBD system is unable to fulfil the basic monitoring requirements specified in
paragraph 3.3.3 or 3.3.4 of this annex. The MI shall operate in a distinct warning mode, e.g. a flashing light,
under any period during which engine misfire occurs at a level likely to cause catalyst damage, as specified by
the manufacturer. The MI shall also activate when the vehicle's ignition is in the ‘key-on’ position before
engine starting or cranking and de-activate after engine starting if no malfunction has previously been
detected.
3.6. Fault code storage
3.6.1. The OBD system shall record fault code(s) indicating the status of the emission control system. Separate
status codes shall be used to identify correctly functioning emission control systems and those emission
control systems which need further vehicle operation to be fully evaluated. If the MI is activated due to
deterioration or malfunction or permanent emission default modes of operation, a fault code shall be stored
that identifies the type of malfunction. A fault code shall also be stored in the cases referred to in
paragraphs 3.3.3.5 and 3.3.4.5 of this annex.
3.6.2. The distance travelled by the vehicle while the MI is activated shall be available at any instant through the
serial port on the standard link connector.
3.6.3. In the case of vehicles equipped with positive ignition engines, misfiring cylinders need not be uniquely
identified if a distinct single or multiple cylinder misfire fault code is stored.
3.7. Extinguishing the MI
3.7.1. If misfire at levels likely to cause catalyst damage (as specified by the manufacturer) is not present any more,
or if the engine is operated after changes to speed and load conditions where the level of misfire will not
cause catalyst damage, the MI may be switched back to the previous state of activation during the first driving
cycle on which the misfire level was detected and may be switched to the normal activated mode on
subsequent driving cycles. If the MI is switched back to the previous state of activation, the corresponding
fault codes and stored freeze-frame conditions may be erased.
3.7.2. For all other malfunctions, the MI may be de-activated after three subsequent sequential driving cycles during
which the monitoring system responsible for activating the MI ceases to detect the malfunction and if no
other malfunction has been identified that would independently activate the MI.15.2.2019 EN Official Journal of the European Union L 45/205
3.8. Erasing a fault code
3.8.1. The OBD system may erase a fault code and the distance travelled and freeze-frame information if the same
fault is not re-registered in at least 40 engine warm-up cycles or forty driving cycles with vehicle operation in
which the criteria specified in sections 7.5.1(a)–(c) of Annex 11, Appendix 1 are met.
3.9. Bi-fuelled gas vehicles
In general, for bi-fuelled gas vehicles for each of the fuel types (petrol and (NG/biomethane)/LPG)) all the OBD
requirements as for a mono-fuelled vehicle are applicable. To this end one of the following two options in
paragraphs 3.9.1 or 3.9.2 of this annex or any combination thereof, shall be used.
3.9.1. One OBD system for both fuel types.
3.9.1.1. The following procedures shall be executed for each diagnostic in a single OBD system for operation on
petrol and on (NG/biomethane)/LPG, either independent of the fuel currently in use or fuel type specific:
(a) Activation of malfunction indicator (MI) (see paragraph 3.5 of this annex);
(b) Fault code storage (see paragraph 3.6 of this annex);
(c) Extinguishing the MI (see paragraph 3.7 of this annex);
(d) Erasing a fault code (see paragraph 3.8 of this annex).
For components or systems to be monitored, either separate diagnostics for each fuel type can be used or
a common diagnostic.
3.9.1.2. The OBD system can reside in either one or more computers.
3.9.2. Two separate OBD systems, one for each fuel type.
3.9.2.1. The following procedures shall be executed independently of each other when the vehicle is operated on
petrol or on (NG/biomethane)/LPG:
(a) Activation of malfunction indicator (MI) (see paragraph 3.5 of this annex);
(b) Fault code storage (see paragraph 3.6 of this annex);
(c) Extinguishing the MI (see paragraph 3.7 of this annex);
(d) Erasing a fault code (see paragraph 3.8 of this annex).
3.9.2.2. The separate OBD systems can reside in either one or more computers.
3.9.3. Specific requirements regarding the transmission of diagnostic signals from bi-fuelled gas vehicles.
3.9.3.1. On a request from a diagnostic scan tool, the diagnostic signals shall be transmitted on one or more source
addresses. The use of source addresses is described in the standard listed in paragraph 6.5.3.2(a) of Annex 11,
Appendix 1 of this Regulation.
3.9.3.2. Identification of fuel specific information can be realized:
(a) By use of source addresses; and/or
(b) By use of a fuel select switch; and/or
(c) By use of fuel specific fault codes.
3.9.4. Regarding the status code (as described in paragraph 3.6. of this annex), one of the following two options has
to be used, if one or more of the diagnostics reporting readiness is fuel type specific:
(a) The status code is fuel specific, i.e. use of two status codes, one for each fuel type;
(b) The status code shall indicate fully evaluated control systems for both fuel types (petrol and
(NG/biomethane)/LPG)) when the control systems are fully evaluated for one of the fuel types.
If none of the diagnostics reporting readiness is fuel type specific, then only one status code has to be
supported.L 45/206 EN Official Journal of the European Union 15.2.2019
3.10. Additional provisions for vehicles employing engine shut - off strategies.
3.10.1. Driving cycle
3.10.1.1. Autonomous engine restarts commanded by the engine control system following an engine stall may be
considered a new driving cycle or a continuation of the existing driving cycle
4. REQUIREMENTS RELATING TO THE TYPE APPROVAL OF ON-BOARD DIAGNOSTIC SYSTEMS
4.1. A manufacturer may request to the Type Approval Authority that an OBD system be accepted for type
approval even though the system contains one or more deficiencies such that the specific requirements of this
annex are not fully met.
4.2. In considering the request, the authority shall determine whether compliance with the requirements of this
annex is infeasible or unreasonable.
The Type Approval Authority shall take into consideration data from the manufacturer that details such
factors as, but not limited to, technical feasibility, lead time and production cycles including phase-in or
phase-out of engines or vehicle designs and programmed upgrades of computers, the extent to which the
resultant OBD system will be effective in complying with the requirements of this Regulation and that the
manufacturer has demonstrated an acceptable level of effort towards compliance with the requirements of
this Regulation.
4.2.1. The Type Approval Authority shall not accept any deficiency request that includes the complete lack of
a required diagnostic monitor or the lack of mandated recording and reporting of data related to a monitor.
4.2.2. The Type Approval Authority will not accept any deficiency request that does not respect the OBD threshold
limits in paragraph 3.3.2 of this annex.
4.3. In determining the identified order of deficiencies, deficiencies relating to paragraphs 3.3.3.1, 3.3.3.2
and 3.3.3.3 of this annex for positive ignition engines and paragraphs 3.3.4.1, 3.3.4.2 and 3.3.4.3 of this
annex for compression-ignition engines shall be identified first.
4.4. Prior to or at the time of type approval, no deficiency shall be granted in respect of the requirements of
paragraph 6.5, except paragraph 6.5.3.4, of Appendix 1 to this annex.
4.5. Deficiency period
4.5.1. A deficiency may be carried-over for a period of two years after the date of type-approval of the vehicle type
unless it can be adequately demonstrated that substantial vehicle hardware modifications and additional
lead-time beyond two years would be necessary to correct the deficiency. In such a case, the deficiency may
be carried-over for a period not exceeding three years.
4.5.2. A manufacturer may request that the Type Approval Authority grant a deficiency retrospectively when such
a deficiency is discovered after the original type-approval. In this case, the deficiency may be carried-over for
a period of two years after the date of notification to the Type Approval Authority unless it can be adequately
demonstrated that substantial vehicle hardware modifications and additional lead-time beyond two years
would be necessary to correct the deficiency. In such a case, the deficiency may be carried-over for a period
not exceeding three years.
4.6. The Type Approval Authority shall notify its decision in granting a deficiency request to all other Contracting
Parties to the 1958 Agreement applying this Regulation.
5. ACCESS TO OBD INFORMATION
5.1. Applications for type approval or amendment of a type approval shall be accompanied by the relevant
information concerning the vehicle OBD system. This relevant information shall enable manufacturers of
replacement or retrofit components to make the parts they manufacture compatible with the vehicle OBD
system with a view to fault-free operation assuring the vehicle user against malfunctions. Similarly, such
relevant information shall enable the manufacturers of diagnostic tools and test equipment to make tools and
equipment that provide for effective and accurate diagnosis of vehicle emission control systems.
5.2. Upon request, the Type Approval Authorities shall make Appendix 1 to Annex 2 to this Regulation
containing the relevant information on the OBD system available to any interested components, diagnostic
tools or test equipment manufacturer on a non-discriminatory basis.15.2.2019 EN Official Journal of the European Union L 45/207
5.2.1. If an Type Approval Authority receives a request from any interested components, diagnostic tools or test
equipment manufacturer for information on the OBD system of a vehicle that has been type-approved to
a previous version of this Regulation,
(a) The Type Approval Authority shall, within 30 days, request the manufacturer of the vehicle in question to
make available the information required in item 3.2.12.2.7.6 of Annex 1 to this Regulation. The
requirement of the second section of item 3.2.12.2.7.6 of Annex 1 (i.e. the following text ‘unless such
information is covered by intellectual property rights or constitutes specific know-how of the
manufacturer or the OEM supplier(s)’) is not applicable;
(b) The manufacturer shall submit this information to the Type Approval Authority within two months of
the request;
(c) The Type Approval Authority shall transmit this information to the Type Approval Authorities of the
Contracting Parties and the Type Approval Authority which granted the original type approval shall
attach this information to Annex 1 to this Regulation of the vehicle type approval information.
This requirement shall not invalidate any approval previously granted pursuant to Regulation No 83 nor
prevent extensions to such approvals under the terms of the Regulation under which they were originally
granted.
5.2.2. Information can only be requested for replacement or service components that are subject to ECE type
approval, or for components that form part of a system that is subject to ECE type approval.
5.2.3. The request for information shall identify the exact specification of the vehicle model for which the
information is required. It shall confirm that the information is required for the development of replacement
or retrofit parts or components or diagnostic tools or test equipment.L 45/208 EN Official Journal of the European Union 15.2.2019
APPENDIX 1
FUNCTIONAL ASPECTS OF ON-BOARD DIAGNOSTIC (OBD) SYSTEMS
1. INTRODUCTION
This appendix describes the procedure of the test according to paragraph 3 of this annex. The procedure
describes a method for checking the function of the On-Board Diagnostic (OBD) system installed on the vehicle
by failure simulation of relevant systems in the engine management or emission control system. It also sets
procedures for determining the durability of OBD systems.
The manufacturer shall make available the defective components and/or electrical devices which would be used
to simulate failures. When measured over the Type I Test cycle, such defective components or devices shall not
cause the vehicle emissions to exceed the limits of paragraph 3.3.2 by more than 20 per cent. For electrical
failures (short/open circuit), the emissions may exceed the limits of paragraph 3.3.2 by more than twenty per
cent. When the vehicle is tested with the defective component or device fitted, the OBD system is approved if
the MI is activated. The OBD system is also approved if the MI is activated below the OBD threshold limits.
2. DESCRIPTION OF TEST
2.1. The testing of OBD systems consists of the following phases:
2.1.1. Simulation of malfunction of a component of the engine management or emission control system;
2.1.2. Preconditioning of the vehicle with a simulated malfunction over preconditioning specified in paragraphs 6.2.1
or 6.2.2 of this appendix;
2.1.3. Driving the vehicle with a simulated malfunction over the Type I test cycle and measuring the emissions of the
vehicle;
2.1.4. Determining whether the OBD system reacts to the simulated malfunction and indicates malfunction in an
appropriate manner to the vehicle driver.
2.2. Alternatively, at the request of the manufacturer, malfunction of one or more components may be electronically
simulated according to the requirements of paragraph 6 of this appendix.
2.3. Manufacturers may request that monitoring take place outside the Type I test cycle if it can be demonstrated to
the Type Approval Authority that monitoring during conditions encountered during the Type I test cycle would
impose restrictive monitoring conditions when the vehicle is used in service.
3. TEST VEHICLE AND FUEL
3.1. Vehicle
The test vehicle shall meet the requirements of paragraph 3.2 of Annex 4a to this Regulation.
3.2. Fuel
The appropriate reference fuel as described in Annex 10 or Annex 10a to this Regulation shall be used for
testing. The fuel type for each failure mode to be tested (described in paragraph 6.3 of this appendix) may be
selected by the Type Approval Authority from the reference fuels described in Annex 10a to this Regulation in
the case of the testing of a mono-fuelled gas vehicle and from the reference fuels described in Annex 10 and
Annex 10a to this Regulation in the case of the testing of a bi-fuelled gas vehicle. The selected fuel type shall
not be changed during any of the test phases (described in paragraphs 2.1 to 2.3 of this appendix). In the case
of the use of LPG or NG/biomethane as a fuel it is permissible that the engine is started on petrol and switched
to LPG or NG/biomethane after a pre-determined period of time which is controlled automatically and not
under the control of the driver.
4. TEST TEMPERATURE AND PRESSURE
4.1. The test temperature and pressure shall meet the requirements of the Type I test as described in paragraph 3.1
of Annex 4a to this Regulation.15.2.2019 EN Official Journal of the European Union L 45/209
5. TEST EQUIPMENT
5.1. Chassis dynamometer
The chassis dynamometer shall meet the requirements of Appendix 1 to Annex 4a to this Regulation.
6. OBD TEST PROCEDURE
6.1. The operating cycle on the chassis dynamometer shall meet the requirements of Annex 4a to this Regulation.
6.1.1. The Type I test need not be performed for the demonstration of electrical failures (short/open circuit). The
manufacturer may demonstrate these failure modes using driving conditions in which the component is used
and the monitoring conditions are encountered. These conditions shall be documented in the type approval
documentation.
6.2. Vehicle preconditioning
6.2.1. According to the engine type and after introduction of one of the failure modes given in paragraph 6.3 of this
appendix, the vehicle shall be preconditioned by driving at least two consecutive Type I tests (Parts One and
Two). For compression-ignition engined vehicles an additional preconditioning of two Part Two cycles is
permitted.
6.2.2. At the request of the manufacturer, alternative preconditioning methods may be used.
6.2.3. The use of additional preconditioning cycles or alternative preconditioning methods shall be documented in the
type approval documentation.
6.3. Failure modes to be tested
6.3.1. Positive ignition engined vehicles:
6.3.1.1. Replacement of the catalyst with a deteriorated or defective catalyst or electronic simulation of such a failure;
6.3.1.2. Engine misfire conditions according to the conditions for misfire monitoring given in paragraph 3.3.3.2 of
Annex 11 to this Regulation;
6.3.1.3. Replacement of the oxygen sensor with a deteriorated or defective oxygen sensor or electronic simulation of
such a failure;
6.3.1.4. Electrical disconnection of any other emission-related component connected to a power-train management
computer (if active on the selected fuel type);
6.3.1.5. Electrical disconnection of the electronic evaporative purge control device (if equipped and if active on the
selected fuel type).
6.3.2. Compression-ignition engined vehicles:
6.3.2.1. Where fitted, replacement of the catalyst with a deteriorated or defective catalyst or electronic simulation of
such a failure.
6.3.2.2. Where fitted, total removal of the particulate trap or, where sensors are an integral part of the trap, a defective
trap assembly.
6.3.2.3. Electrical disconnection of any fuelling system electronic fuel quantity and timing actuator.
6.3.2.4. Electrical disconnection of any other emission-related component connected to a power-train management
computer.
6.3.2.5. In meeting the requirements of paragraphs 6.3.2.3 and 6.3.2.4 of this appendix, and with the agreement of the
Type Approval Authority, the manufacturer shall take appropriate steps to demonstrate that the OBD system
will indicate a fault when disconnection occurs.
6.3.2.6. The manufacturer shall demonstrate that malfunctions of the EGR flow and cooler are detected by the
OBD system during its approval test.L 45/210 EN Official Journal of the European Union 15.2.2019
6.4. OBD system test
6.4.1. Vehicles fitted with positive ignition engines:
6.4.1.1. After vehicle preconditioning according to paragraph 6.2 of this appendix, the test vehicle is driven over
a Type I test (Parts One and Two).
The MI shall be activated at the latest before the end of this test under any of the conditions given in
paragraphs 6.4.1.2 to 6.4.1.5 of this appendix. The MI may also be activated during preconditioning. The
Technical Service may substitute those conditions with others in accordance with paragraph 6.4.1.6 of this
appendix. However, the total number of failures simulated shall not exceed four (4) for the purpose of type
approval.
In the case of testing a bi-fuel gas vehicle, both fuel types shall be used within the maximum of
four (4) simulated failures at the discretion of the Type Approval Authority.
6.4.1.2. Replacement of a catalyst with a deteriorated or defective catalyst or electronic simulation of a deteriorated or
defective catalyst that results in emissions exceeding the NMHC limit given in paragraph 3.3.2 of this annex.
6.4.1.3. An induced misfire condition according to the conditions for misfire monitoring given in paragraph 3.3.3.2 of
this annex that results in emissions exceeding any of the limits given in paragraph 3.3.2 of this annex.
6.4.1.4. Replacement of an oxygen sensor with a deteriorated or defective oxygen sensor or electronic simulation of
a deteriorated or defective oxygen sensor that results in emissions exceeding any of the limits given in
paragraph 3.3.2 of this annex.
6.4.1.5. Electrical disconnection of the electronic evaporative purge control device (if equipped and if active on the
selected fuel type).
6.4.1.6. Electrical disconnection of any other emission-related power-train component connected to a computer that
results in emissions exceeding any of the limits given in paragraph 3.3.2 of this annex (if active on the selected
fuel type).
6.4.2. Vehicles fitted with compression-ignition engines:
6.4.2.1. After vehicle preconditioning according to paragraph 6.2 of this appendix, the test vehicle is driven over
a Type I test (Parts One and Two).
The MI shall be activated at the latest before the end of this test under any of the conditions given in
paragraphs 6.4.2.2 to 6.4.2.5 of this appendix. The MI may also be activated during preconditioning. The
technical service may substitute those conditions by others in accordance with paragraph 6.4.2.5 of this
appendix. However, the total number of failures simulated shall not exceed four (4) for the purposes of type
approval.
6.4.2.2. Where fitted, replacement of a catalyst with a deteriorated or defective catalyst or electronic simulation of
a deteriorated or defective catalyst that results in emissions exceeding limits given in paragraph 3.3.2 of this
annex.
6.4.2.3. Where fitted, total removal of the particulate trap or replacement of the particulate trap with a defective
particulate trap meeting the conditions of paragraph 6.3.2.2 of this appendix that results in emissions
exceeding the limits given in paragraph 3.3.2 of this annex.
6.4.2.4. With reference to paragraph 6.3.2.5 of this appendix, disconnection of any fuelling system electronic fuel
quantity and timing actuator that results in emissions exceeding any of the limits given in paragraph 3.3.2 of
this annex.
6.4.2.5. With reference to paragraph 6.3.2.5 of this appendix, disconnection of any other emission-related power-train
component connected to a computer that results in emissions exceeding any of the limits given in
paragraph 3.3.2 of this annex.15.2.2019 EN Official Journal of the European Union L 45/211
6.5. Diagnostic signals
6.5.1. Reserved
6.5.1.1. Upon determination of the first malfunction of any component or system, ‘freeze-frame’ engine conditions
present at the time shall be stored in computer memory. Should a subsequent fuel system or misfire
malfunction occur, any previously stored freeze-frame conditions shall be replaced by the fuel system or misfire
conditions (whichever occurs first). Stored engine conditions shall include, but are not limited to calculated load
value, engine speed, fuel trim value(s) (if available), fuel pressure (if available), vehicle speed (if available),
coolant temperature, intake manifold pressure (if available), closed- or open-loop operation (if available) and the
fault code which caused the data to be stored. The manufacturer shall choose the most appropriate set of
conditions facilitating effective repairs for freeze-frame storage. Only one frame of data is required. Manufac
turers may choose to store additional frames provided that at least the required frame can be read by a generic
scan tool meeting the specifications of paragraphs 6.5.3.2 and 6.5.3.3 of this appendix. If the fault code
causing the conditions to be stored is erased in accordance with paragraph 3.8 of this annex, the stored engine
conditions may also be erased.
6.5.1.2. If available, the following signals in addition to the required freeze-frame information shall be made available
on demand through the serial port on the standardised data link connector, if the information is available to
the on-board computer or can be determined using information available to the on-board computer: diagnostic
trouble codes, engine coolant temperature, fuel control system status (closed-loop, open-loop, other), fuel trim,
ignition timing advance, intake air temperature, manifold air pressure, air flow rate, engine speed, throttle
position sensor output value, secondary air status (upstream, downstream or atmosphere), calculated load
value, vehicle speed and fuel pressure.
The signals shall be provided in standard units based on the specifications given in paragraph 6.5.3 of this
appendix. Actual signals shall be clearly identified separately from default value or limp-home signals.
6.5.1.3. For all emission control systems for which specific on-board evaluation tests are conducted (catalyst, oxygen
sensor, etc.), except misfire detection, fuel system monitoring and comprehensive component monitoring, the
results of the most recent test performed by the vehicle and the limits to which the system is compared shall
be made available through the serial data port on the standardised data link connector according to the specifi
cations given in paragraph 6.5.3 of this appendix. For the monitored components and systems excepted above,
a pass/fail indication for the most recent test results shall be available through the data link connector.
All data required to be stored in relation to OBD in-use performance according to the provisions of
paragraph 7.6 of this appendix shall be available through the serial data port on the standardized data link
connector according to the specifications given in paragraph 6.5.3 of this appendix.
6.5.1.4. The OBD requirements to which the vehicle is certified (i.e. Annex 11 or the alternative requirements specified
in paragraph 5. of this Regulation) and the major emission control systems monitored by the OBD system
consistent with paragraph 6.5.3.3 of this appendix shall be available through the serial data port on the
standardised data link connector according to the specifications given in paragraph 6.5.3 of this appendix.
6.5.1.5. For all types of vehicles entering into service, the software calibration identification number shall be made
available through the serial port on the standardised data link connector. The software calibration identification
number shall be provided in a standardised format.
6.5.2. The emission control diagnostic system is not required to evaluate components during malfunction if such
evaluation would result in a risk to safety or component failure.
6.5.3. The emission control diagnostic system shall provide for standardised and unrestricted access and conform to
the following ISO standards and/or SAE specification. Later versions may be used at the manufacturers'
discretion.L 45/212 EN Official Journal of the European Union 15.2.2019
6.5.3.1. The following standard shall be used as the on-board to off-board communications link:
(a) ISO 15765-4:2011 ‘Road vehicles – Diagnostics on Controller Area Network (CAN) – Part 4: Requirements
for emissions-related systems’, dated 1 February 2011.
6.5.3.2. Standards used for the transmission of OBD relevant information:
(a) ISO 15031-5 ‘Road vehicles - communication between vehicles and external test equipment for
emissions-related diagnostics – Part 5: Emissions-related diagnostic services’, dated 1 April 2011 or
SAE J1979 dated 23 February 2012;
(b) ISO 15031-4 ‘Road vehicles – Communication between vehicle and external test equipment for emissions
related diagnostics – Part 4: External test equipment’, dated 1 June 2005 or SAE J1978 dated 30 April
2002;
(c) ISO 15031-3 ‘Road vehicles – Communication between vehicle and external test equipment for emissions
related diagnostics Part 3: Diagnostic connector and related electrical circuits: specification and use’, dated
1 July 2004 or SAE J 1962 dated 26 July 2012;
(d) ISO 15031-6 ‘Road vehicles – Communication between vehicle and external test equipment for emissions
related diagnostics – Part 6: Diagnostic trouble code definitions’, dated 13 August 2010 or SAE J2012
dated 7 March 2013;
(e) ISO 27145 ‘Road vehicles – Implementation of World-Wide Harmonized On-Board Diagnostics
(WWH-OBD)’ dated 15 August 2012 with the restriction, that only 6.5.3.1(a) may be used as a data link;
(f) ISO 14229:2013 ‘Road vehicles – Unified diagnostic services (UDS) with the restriction, that only 6.5.3.1(a)
may be used as a data link’.
The standards (e) and (f) may be used as an option instead of (a) not earlier than 1 January 2019.
6.5.3.3. Test equipment and diagnostic tools needed to communicate with OBD systems shall meet or exceed the
functional specification given in the standard listed in paragraph 6.5.3.2(b) of this appendix.
6.5.3.4. Basic diagnostic data, (as specified in paragraph 6.5.1) and bi-directional control information shall be provided
using the format and units described in the standard listed in paragraph 6.5.3.2(a) of this appendix and must
be available using a diagnostic tool meeting the requirements of the standard listed in paragraph 6.5.3.2(b) of
this appendix.
The vehicle manufacturer shall provide to a national standardisation body the details of any emission-related
diagnostic data, e.g. PID's, OBD monitor Id's, Test ID's not specified in the standard listed in paragraph 6.5.3.2(a)
of this appendix but related to this Regulation.
6.5.3.5. When a fault is registered, the manufacturer shall identify the fault using an appropriate ISO/SAE controlled
fault code specified in one of the standards listed in paragraph 6.5.3.2(d) of this appendix relating to ‘emission
related system diagnostic trouble codes’. If such identification is not possible, the manufacturer may use
manufacturer controlled diagnostic trouble codes according to the same standard. The fault codes shall be fully
accessible by standardised diagnostic equipment complying with the provisions of paragraph 6.5.3.3 of this
appendix.
The vehicle manufacturer shall provide to a national standardisation body the details of any emission-related
diagnostic data, e.g. PID's, OBD monitor Id's, Test Id's not specified in the standard listed in paragraph 6.5.3.2(a)
of this appendix but related to this Regulation.
6.5.3.6. The connection interface between the vehicle and the diagnostic tester shall be standardised and shall meet all
the requirements of the standard listed in paragraph 6.5.3.2(c) of this appendix. The installation position shall
be subject to agreement of the Type Approval Authority such that it is readily accessible by service personnel
but protected from tampering by non-qualified personnel.15.2.2019 EN Official Journal of the European Union L 45/213
6.5.3.7. The manufacturer shall also make accessible, where appropriate on payment, the technical information required
for the repair or maintenance of motor vehicles unless that information is covered by an intellectual property
right or constitutes essential, secret know-how which is identified in an appropriate form; in such case, the
necessary technical information shall not be withheld improperly.
Entitled to such information is any person engaged in commercially servicing or repairing, road-side rescuing,
inspecting or testing of vehicles or in the manufacturing or selling replacement or retro-fit components,
diagnostic tools and test equipment.
7. IN-USE PERFORMANCE
7.1. General requirements
7.1.1. Each monitor of the OBD system shall be executed at least once per driving cycle in which the monitoring
conditions as specified in paragraph 7.2 of this appendix are met. Manufacturers may not use the calculated
ratio (or any element thereof) or any other indication of monitor frequency as a monitoring condition for any
monitor.
7.1.2. The In-Use Performance Ratio (IUPR) of a specific monitor M of the OBD systems and in-use performance of
pollution control devices shall be:
IUPR = Numerator /Denominator
M M M
7.1.3. Comparison of numerator and denominator gives an indication of how often a specific monitor is operating
relative to vehicle operation. To ensure all manufacturers are tracking IUPR in the same manner, detailed
M
requirements are given for defining and incrementing these counters.
7.1.4. If, according to the requirements of this annex, the vehicle is equipped with a specific monitor M, IUPR shall
M
be greater or equal to the following minimum values:
(a) 0,260 for secondary air system monitors and other cold start related monitors;
(b) 0,520 for evaporative emission purge control monitors;
(c) 0,336 for all other monitors.
7.1.5. Vehicles shall comply with the requirements of paragraph 7.1.4 of this appendix for a mileage of at least
160 000 km. By way of derogation, vehicle types approved, registered, sold or entered into service before the
relevant dates given in paragraphs 12.2.1 and 12.2.2 of this Regulation, shall have an IUPR greater or equal to
M
0,1 for all monitors M. For new type approvals and new vehicles the monitor required by paragraph 3.3.4.7 of
this annex shall have an IUPR greater or equal to 0,1 until the dates specified in paragraphs 12.2.3 and 12.2.4
of this Regulation respectively.
7.1.6. The requirements of this paragraph are deemed to be met for a particular monitor M, if for all vehicles of
a particular OBD family manufactured in a particular calendar year the following statistical conditions hold:
(a) The average IUPR is equal or above the minimum value applicable to the monitor;
M
(b) More than 50 per cent of all vehicles have an IUPR equal or above the minimum value applicable to the
M
monitor.
7.1.7. The manufacturer shall demonstrate to the Type Approval Authority that these statistical conditions are
satisfied for all monitors required to be reported by the OBD system according to paragraph 7.6 of this
appendix not later than 18 months thereafter. For this purpose, for OBD families consisting of more than
1 000 registrations in the European Union or non-EU Contracting Party, that are subject to sampling within
the sampling period, the process described in paragraph 9 of this Regulation shall be used without prejudice to
the provisions of paragraph 7.1.9 of this appendix.L 45/214 EN Official Journal of the European Union 15.2.2019
In addition to the requirements set out in paragraph 9 of this Regulation and regardless of the result of the
audit described in paragraph 9.2 of this Regulation, the Type Approval Authority granting the approval shall
apply the in-service conformity check for IUPR described in Appendix 3 to this Regulation in an appropriate
number of randomly determined cases. ‘In an appropriate number of randomly determined cases’ means that
this measure has a dissuasive effect on non-compliance with the requirements of paragraph 7 of this appendix
or the provision of manipulated, false or non-representative data for the audit. If no special circumstances
apply and can be demonstrated by the Type Approval Authorities, random application of the in-service
conformity check to 5 per cent of the type approved OBD families shall be considered as sufficient for
compliance with this requirement. For this purpose, Type Approval Authorities may find arrangements with
the manufacturer for the reduction of double testing of a given OBD family as long as these arrangements do
not harm the dissuasive effect of the Type Approval Authority's own in-service conformity check on
non-compliance with the requirements of this paragraph 7 of this appendix. Data collected by EU Member
States during surveillance testing programmes may be used for in-service conformity checks. Upon request,
type approval authorities shall provide data on the audits and random in-service conformity checks performed,
including the methodology used for identifying those cases, which are made subject to the random in-service
conformity check, to the European Commission and other Type Approval Authorities.
7.1.8. For the entire test sample of vehicles the manufacturer shall report to the relevant authorities all of the in-use
performance data to be reported by the OBD system according to paragraph 7.6 of this appendix in
conjunction with an identification of the vehicle being tested and the methodology used for the selection of the
tested vehicles from the fleet. Upon request, the Type Approval Authority granting the approval shall make
these data and the results of the statistical evaluation available to the European Commission and other approval
authorities.
7.1.9. Public authorities and their delegates may pursue further tests on vehicles or collect appropriate data recorded
by vehicles to verify compliance with the requirements of this annex.
7.2. Numerator
M
7.2.1. The numerator of a specific monitor is a counter measuring the number of times a vehicle has been operated
such that all monitoring conditions necessary for the specific monitor to detect a malfunction in order to warn
the driver, as they have been implemented by the manufacturer, have been encountered. The numerator shall
not be incremented more than once per driving cycle, unless there is reasoned technical justification.
7.3. Denominator
M
7.3.1. The purpose of the denominator is to provide a counter indicating the number of vehicle driving events, taking
into account special conditions for a specific monitor. The denominator shall be incremented at least once per
driving cycle, if during this driving cycle such conditions are met and the general denominator is incremented
as specified in paragraph 7.5 of this appendix unless the denominator is disabled according to paragraph 7.7 of
this appendix.
7.3.2. In addition to the requirements of paragraph 7.3.1 of this appendix:
(a) Secondary air system monitor denominator(s) shall be incremented if the commanded ‘on’ operation of the
secondary air system occurs for a time greater than or equal to 10 seconds. For purposes of determining
this commanded ‘on’ time, the OBD system may not include time during intrusive operation of the
secondary air system solely for the purposes of monitoring.
(b) Denominators of monitors of systems only active during cold start shall be incremented if the component
or strategy is commanded ‘on’ for a time greater than or equal to 10 seconds.
(c) The denominator(s) for monitors of Variable Valve Timing (VVT) and/or control systems shall be
incremented if the component is commanded to function (e.g., commanded ‘on’, ‘open’, ‘closed’, ‘locked’,
etc.) on two or more occasions during the driving cycle or for a time greater than or equal to 10 seconds,
whichever occurs first.15.2.2019 EN Official Journal of the European Union L 45/215
(d) For the following monitors, the denominator(s) shall be incremented by one if, in addition to meeting the
requirements of this paragraph on at least one driving cycle, at least 800 cumulative kilometres of vehicle
operation have been experienced since the last time the denominator was incremented:
(i) Diesel oxidation catalyst;
(ii) Diesel particulate filter.
(e) Without prejudice to requirements for the increment of denominators of other monitors the denominators
of monitors of the following components shall be incremented if and only if the driving cycle started with
a cold start:
(i) Liquid (oil, engine coolant, fuel, SCR reagent) temperature sensors;
(ii) Clean air (ambient air, intake air, charge air, inlet manifold) temperature sensors;
(iii) Exhaust (EGR recirculation/cooling, exhaust gas turbo-charging, catalyst) temperature sensors;
(f) The denominators of monitors of the boost pressure control system shall be incremented if all of the
following conditions are met:
(i) The general denominator conditions arc fulfilled;
(ii) The boost pressure control system is active for a time greater than or equal to 15 seconds.
7.3.3. For hybrid vehicles, vehicles that employ alternative engine start hardware or strategies (e.g. integrated starter
and generators), or alternative fuel vehicles (e.g. dedicated, bi-fuel, or dual-fuel applications), the manufacturer
may request the approval of the Type Approval Authority to use alternative criteria to those set forth in this
paragraph for incrementing the denominator. In general, the Type Approval Authority shall not approve
alternative criteria for vehicles that only employ engine shut off at or near idle/vehicle stop conditions. Approval
by the Type Approval Authority of the alternative criteria shall be based on the equivalence of the alternative
criteria to determine the amount of vehicle operation relative to the measure of conventional vehicle operation
in accordance with the criteria in this paragraph.
7.4. Ignition cycle counter
7.4.1. The ignition cycle counter indicates the number of ignition cycles a vehicle has experienced. The ignition cycle
counter may not be incremented more than once per driving cycle.
7.5. General denominator
7.5.1. The general denominator is a counter measuring the number of times a vehicle has been operated. It shall be
incremented within 10 seconds, if and only if, the following criteria are satisfied on a single driving cycle:
(a) Cumulative time since engine start is greater than or equal to 600 seconds while at an elevation of less
than 2 440 m above sea level and at an ambient temperature of greater than or equal to – 7 °C;
(b) Cumulative vehicle operation at or above 40 km/h occurs for greater than or equal to 300 seconds while at
an elevation of less than 2 440 m above sea level and at an ambient temperature of greater than or equal
to – 7 °C;
(c) Continuous vehicle operation at idle (i.e. accelerator pedal released by driver and vehicle speed less than or
equal to 1,6 km/h) for greater than or equal to 30 seconds while at an elevation of less than 2 440 m
above sea level and at an ambient temperature of greater than or equal to – 7 °C.
7.6. Reporting and increasing counters
7.6.1. The OBD system shall report, in accordance with the ISO 15031-5 specifications of the standard listed in
paragraph 6.5.3.2(a) of this appendix, the ignition cycle counter and general denominator as well as separate
numerators and denominators for the following monitors, if their presence on the vehicle is required by this
annex:
(a) Catalysts (each bank to be reported separately);
(b) Oxygen/exhaust gas sensors, including secondary oxygen sensors (each sensor to be reported separately);L 45/216 EN Official Journal of the European Union 15.2.2019
(c) Evaporative system;
(d) EGR system;
(e) VVT system;
(f) Secondary air system;
(g) Particulate filter;
(h) NO after-treatment system (e.g. NO adsorber, NO reagent/catalyst system);
x x x
(i) Boost pressure control system.
7.6.2. For specific components or systems that have multiple monitors, which are required to be reported by this
point (e.g. oxygen sensor bank 1 may have multiple monitors for sensor response or other sensor character
istics), the OBD system shall separately track numerators and denominators for each of the specific monitors
and report only the corresponding numerator and denominator for the specific monitor that has the lowest
numerical ratio. If two or more specific monitors have identical ratios, the corresponding numerator and
denominator for the specific monitor that has the highest denominator shall be reported for the specific
component.
7.6.2.1. Numerators and denominators for specific monitors of components or systems, that are monitoring
continuously for short circuit or open circuit failures are exempted from reporting.
‘Continuously’, if used in this context means monitoring is always enabled and sampling of the signal used for
monitoring occurs at a rate no less than two samples per second and the presence or the absence of the failure
relevant to that monitor has to be concluded within 15 seconds.
If for control purposes, a computer input component is sampled less frequently, the signal of the component
may instead be evaluated each time sampling occurs.
It is not required to activate an output component/system for the sole purpose of monitoring that output
component/system.
7.6.3. All counters, when incremented, shall be incremented by an integer of one.
7.6.4. The minimum value of each counter is 0, the maximum value shall not be less than 65 535, notwithstanding
any other requirements on standardised storage and reporting of the OBD system.
7.6.5. If either the numerator or denominator for a specific monitor reaches its maximum value, both counters for
that specific monitor shall be divided by two before being incremented again according to the provisions set in
paragraphs 7.2 and 7.3 of this appendix. If the ignition cycle counter or the general denominator reaches its
maximum value, the respective counter shall change to zero at its next increment according to the provisions
set in paragraphs 7.4 and 7.5 of this appendix, respectively.
7.6.6. Each counter shall be reset to zero only when a non-volatile memory reset occurs (e.g. reprogramming event,
etc.) or, if the numbers are stored in keep-alive memory (KAM), when KAM is lost due to an interruption in
electrical power to the control module (e.g. battery disconnect, etc.).
7.6.7. The manufacturer shall take measures to ensure that the values of numerator and denominator cannot be reset
or modified, except in cases provided for explicitly in this paragraph.
7.7. Disablement of numerators and denominators and of the general denominator
7.7.1. Within 10 seconds of a malfunction being detected, which disables a monitor required to meet the monitoring
conditions of this annex (i.e. a pending or confirmed code is stored), the OBD system shall disable further
incrementing of the corresponding numerator and denominator for each monitor that is disabled. When the
malfunction is no longer detected (i.e., the pending code is erased through self-clearing or through a scan tool
command), incrementing of all corresponding numerators and denominators shall resume within 10 seconds.
7.7.2. Within 10 seconds of the start of a Power Take-off Operation (PTO) that disables a monitor required to meet
the monitoring conditions of this annex, the OBD system shall disable further incrementing of the
corresponding numerator and denominator for each monitor that is disabled. When the PTO operation ends,
incrementing of all corresponding numerators and denominators shall resume within 10 seconds.15.2.2019 EN Official Journal of the European Union L 45/217
7.7.3. The OBD system shall disable further incrementing of the numerator and denominator of a specific monitor
within 10 seconds, if a malfunction of any component used to determine the criteria within the definition of
the specific monitor's denominator (i.e. vehicle speed, ambient temperature, elevation, idle operation, engine
cold start, or time of operation) has been detected and the corresponding pending fault code has been stored.
Incrementing of the numerator and denominator shall resume within 10 seconds when the malfunction is no
longer present (e.g. pending code erased through self-clearing or by a scan tool command).
7.7.4. The OBD system shall disable further incrementing of the general denominator within 10 seconds, if
a malfunction has been detected of any component used to determine whether the criteria in paragraph 7.5 of
this appendix are satisfied (i.e. vehicle speed, ambient temperature, elevation, idle operation, or time of
operation) and the corresponding pending fault code has been stored. The general denominator may not be
disabled from incrementing for any other condition. Incrementing of the general denominator shall resume
within 10 seconds when the malfunction is no longer present (e.g. pending code erased through self-clearing or
by a scan tool command).L 45/218 EN Official Journal of the European Union 15.2.2019
APPENDIX 2
ESSENTIAL CHARACTERISTICS OF THE VEHICLE FAMILY
1. Parameters defining the OBD family
The OBD family means a manufacturer's grouping of vehicles which, through their design, are expected to have
similar exhaust emission and OBD system characteristics. Each engine of this family shall comply with the
requirements of this Regulation.
The OBD family may be defined by basic design parameters which shall be common to vehicles within the family.
In some cases there may be interaction of parameters. These effects shall also be taken into consideration to ensure
that only vehicles with similar exhaust emission characteristics are included within an OBD family.
2. To this end, those vehicle types whose parameters described below are identical are considered to belong to the
same engine/emission control/OBD system combination.
Engine:
(a) Combustion process (i.e. positive ignition, compression-ignition, two-stroke, four-stroke/rotary);
(b) Method of engine fuelling (i.e. single or multi-point fuel injection); and
(c) Fuel type (i.e. petrol, diesel, flex fuel petrol/ethanol, flex fuel diesel/biodiesel, NG/biomethane, LPG, bi fuel
petrol/NG/biomethane, bi-fuel petrol/LPG).
Emission control system:
(a) Type of catalytic converter (i.e. oxidation, three-way, heated catalyst, SCR, other);
(b) Type of particulate trap;
(c) Secondary air injection (i.e. with or without); and
(d) Exhaust gas recirculation (i.e. with or without);
OBD parts and functioning.
The methods of OBD functional monitoring malfunction detection and malfunction indication to the vehicle
driver.15.2.2019 EN Official Journal of the European Union L 45/219
ANNEX 12
GRANTING OF AN ECE TYPE APPROVAL FOR A VEHICLE FUELLED BY LPG OR NG/BIOMETHANE
1. INTRODUCTION
This annex describes the special requirements that apply in the case of an approval of a vehicle that runs on
LPG or NG/biomethane, or that can run either on petrol or LPG or NG/biomethane in so far as the testing on
LPG or NG/biomethane gas is concerned.
In the case of LPG and NG/biomethane natural gas there is on the market a large variation in fuel composition,
requiring the fuelling system to adapt its fuelling rates to these compositions. To demonstrate this capability,
the vehicle has to be tested in the Type I test on two extreme reference fuels and demonstrate the
self-adaptability of the fuelling system. Whenever the self-adaptability of a fuelling system has been
demonstrated on a vehicle, such a vehicle may be considered as a parent of a family. Vehicles that comply with
the requirements of members of that family, if fitted with the same fuelling system, need to be tested on only
one fuel.
2. DEFINITIONS
For the purpose of this annex the following definitions shall apply:
2.1. A ‘family’ means a group of vehicle types fuelled by LPG or NG/biomethane, identified by a parent vehicle.
2.2. A ‘parent vehicle’ means a vehicle that is selected to act as the vehicle on which the self-adaptability of
a fuelling system is going to be demonstrated, and to which the members of a family refer. It is possible to
have more than one parent vehicle in a family.
2.3. Member of the family
2.3.1. A ‘member of the family’ is a vehicle that shares the following essential characteristics with its parent(s):
(a) It is produced by the same manufacturer;
(b) It is subject to the same emission limits;
(c) If the gas fuelling system has a central metering for the whole engine:
It has a certified power output between 0,7 and 1,15 times that of the parent vehicle;
(d) If the gas fuelling system has an individual metering per cylinder:
It has a certified power output per cylinder between 0,7 and 1,15 times that of the parent vehicle;
(e) If fitted with a catalyst, it has the same type of catalyst i.e. three way, oxidation, de-NO;
x
(f) It has a gas fuelling system (including the pressure regulator) from the same system manufacturer and of
the same type: induction, vapour injection (single point, multipoint), liquid injection (single point,
multipoint);
(g) This gas fuelling system is controlled by an ECU of the same type and technical specification, containing
the same software principles and control strategy. The vehicle may have a second ECU compared to the
parent vehicle, provided that the ECU is only used to control the injectors, additional shut-off valves and
the data acquisition from additional sensors.
2.3.2. With regard to requirements (c) and (d): in the case where a demonstration shows two gas-fuelled vehicles
could be members of the same family with the exception of their certified power output, respectively P and P
1 2
(P < P ), and both are tested as if were parent vehicles the family relation will be considered valid for any
1 2
vehicle with a certified power output between 0,7 P and 1,15 P .
1 2L 45/220 EN Official Journal of the European Union 15.2.2019
3. GRANTING OF A TYPE APPROVAL
Type approval is granted subject to the following requirements:
3.1. Exhaust emissions approval of a parent vehicle
3.1.1. The parent vehicle should demonstrate its capability to adapt to any fuel composition that may occur across
the market. In the case of LPG there are variations in C /C composition. In the case of NG/biomethane there
3 4
are generally two types of fuel, high calorific fuel (H-gas) and low calorific fuel (L-gas), but with a significant
spread within both ranges; they differ significantly in Wobbe index. These variations are reflected in the
reference fuels.
3.1.2. In the case of vehicles fuelled by LPG, NG/biomethane, the parent vehicle(s) shall be tested in the Type I test on
the two extreme reference fuels of Annex 10a to this Regulation. In the case of NG/biomethane, if the
transition from one fuel to another is in practice aided through the use of a switch, this switch shall not be
used during type approval. In such a case on the manufacturer's request and with the agreement of the
Technical Service the pre-conditioning cycle referred in paragraph 6.3 of Annex 4a to this Regulation may be
extended.
3.1.3. The vehicle is considered to conform if, under the tests and reference fuels mentioned in paragraph 3.1.2 of
this annex, the vehicle complies with the emission limits.
3.1.4. In the case of vehicles fuelled by LPG or NG/biomethane, the ratio of emission results ‘r’ shall be determined
for each pollutant as follows:
Type(s) of fuel Reference fuels Calculation of ‘r’
LPG and petrol (Approval B) Fuel A
B
r¼
A
or LPG only (Approval D) Fuel B
NG/biomethane and petrol (Approval B) Fuel G
20
G25
r¼
G20
or NG/biomethane only (Approval D) Fuel G
25
3.2. Exhaust emissions approval of a member of the family:
For the type approval of a mono fuel gas vehicle and bi fuel gas vehicles operating in gas mode, fuelled by LPG
or NG/Biomethane, as a member of the family, a Type I test shall be performed with one gas reference fuel.
This reference fuel may be either of the gas reference fuels. The vehicle is considered to comply if the following
requirements are met:
3.2.1. The vehicle complies with the definition of a family member as defined in paragraph 2.3 of this annex;
3.2.2. If the test fuel is reference fuel A for LPG or G for NG/biomethane, the emission result shall be multiplied by
20
the relevant factor ‘r’ calculated in paragraph 3.1.4 of this annex if r > 1; if r < 1, no correction is needed;
3.2.3. If the test fuel is reference fuel B for LPG or G for NG/biomethane, the emission result shall be divided by the
25
relevant factor ‘r’ calculated in paragraph 3.1.4 of this annex if r < 1; if r > 1, no correction is needed;
3.2.4. On the manufacturer's request, the Type I test may be performed on both reference fuels, so that no correction
is needed;
3.2.5. The vehicle shall comply with the emission limits valid for the relevant category for both measured and
calculated emissions;15.2.2019 EN Official Journal of the European Union L 45/221
3.2.6. If repeated tests are made on the same engine the results on reference fuel G , or A, and those on reference
20
fuel G , or B, shall first be averaged; the ‘r’ factor shall then be calculated from these averaged results;
25
3.2.7. Without prejudice to paragraph 6.4.1.3 of Annex 4a to this Regulation, during the Type I test it is permissible
to use petrol only or simultaneously with gas when operating in gas mode provided that the energy
consumption of gas is higher than 80 per cent of the total amount of energy consumed during the test. This
percentage shall be calculated in accordance with the method set out in Appendix 1 (LPG) or Appendix 2
(NG/biomethane) to this annex.
4. GENERAL CONDITIONS
4.1. Tests for conformity of production may be performed with a commercial fuel of which the C /C ratio lies
3 4
between those of the reference fuels in the case of LPG, or of which the Wobbe index lies between those of the
extreme reference fuels in the case of NG/biomethane. In that case a fuel analysis needs to be present.L 45/222 EN Official Journal of the European Union 15.2.2019
APPENDIX 1
BI-FUEL GAS VEHICLE - CALCULATION OF LPG ENERGY RATIO
1. MEASUREMENT OF THE LPG MASS CONSUMED DURING THE TYPE I TEST CYCLE
Measurement of the LPG mass consumed during the Type I test cycle shall be done by a fuel weighing system
capable of measuring the weight of the LPG storage container during the test in accordance with the following:
An accuracy of ± 2 per cent of the difference between the readings at the beginning and at the end of the test or
better.
Precautions shall be taken to avoid measurement errors.
Such precautions shall at least include the careful installation of the device according to the instrument manufac
turers' recommendations and to good engineering practice.
Other measurement methods are permitted if an equivalent accuracy can be demonstrated.
2. CALCULATION OF THE LPG ENERGY RATIO
The fuel consumption value shall be calculated from the emissions of hydrocarbons, carbon monoxide, and carbon
dioxide determined from the measurement results assuming that only LPG is burned during the test.
The LPG ratio of the energy consumed in the cycle is then determined as follows:
G = M * 10 000/(FC * dist * d)
LPG LPG norm
Where:
G : is the LPG energy ratio (%);
LPG
M : is the LPG mass consumed during the cycle (kg);
LPG
FC : is the fuel consumption (l/100 km) calculated in accordance with paragraph 1.4.3, subparagraph (b), of
norm
Annex 6 to Regulation No 101. If applicable, the correction factor cf in the equation used to determine
FC shall be calculated using the H/C ratio of the gaseous fuel;
norm
dist: is the distance travelled during the cycle (km);
d: is the density d = 0,538 kg/litre.15.2.2019 EN Official Journal of the European Union L 45/223
APPENDIX 2
BI-FUEL VEHICLE - CALCULATION OF NG/BIOMETHANE ENERGY RATIO
1. MEASUREMENT OF THE CNG MASS CONSUMED DURING THE TYPE I TEST CYCLE
Measurement of the CNG mass consumed during the cycle shall be done by a fuel weighing system capable to
measure the CNG storage container during the test in accordance with the following:
An accuracy of ± 2 per cent of the difference between the readings at the beginning and at the end of the test or
better.
Precautions shall be taken to avoid measurement errors.
Such precautions shall at least include the careful installation of the device according to the instrument manufac
turers' recommendations and to good engineering practice.
Other measurement methods are permitted if an equivalent accuracy can be demonstrated.
2. CALCULATION OF THE CNG ENERGY RATIO
The fuel consumption value shall be calculated from the emissions of hydrocarbons, carbon monoxide, and carbon
dioxide determined from the measurement results assuming that only CNG is burned during the test.
The CNG ratio of the energy consumed in the cycle is then determined as follows:
G = M * cf * 10 000/(FC * dist * d)
CNG CNG norm
Where:
G : is the CNG energy ratio (%);
CNG
M : is the CNG mass consumed during the cycle (kg);
CNG
FC : is the fuel consumption (m3/100 km) calculated in accordance with paragraph 1.4.3, subparagraph (c), of
norm
Annex 6 to Regulation No 101;
dist: is the distance travelled during the cycle (km);
d: is the density d = 0,654 kg/m3;
cf: is the correction factor, assuming the following values:
cf = 1 in case of G reference fuel;
20
cf = 0,78 in case of G reference fuel.
25L 45/224 EN Official Journal of the European Union 15.2.2019
ANNEX 13
EMISSIONS TEST PROCEDURE FOR A VEHICLE EQUIPPED WITH A PERIODICALLY REGENERATING
SYSTEM
1. INTRODUCTION
This annex defines the specific provisions regarding type approval of a vehicle equipped with a periodically
regenerating system as defined in paragraph 2.20 of this Regulation.
2. SCOPE AND EXTENSION OF THE TYPE APPROVAL
2.1. Vehicle family groups equipped with periodically regenerating system
The procedure applies to vehicles equipped with a periodically regenerating system as defined in
paragraph 2.20 of this Regulation. For the purpose of this annex vehicle family groups may be established.
Accordingly, those vehicle types with regenerative systems, whose parameters described below are identical, or
within the stated tolerances, shall be considered to belong to the same family with respect to measurements
specific to the defined periodically regenerating systems.
2.1.1. Identical parameters are:
Engine:
(a) Combustion process.
Periodically regenerating system (i.e. catalyst, particulate trap):
(a) Construction (i.e. type of enclosure, type of precious metal, type of substrate, cell density);
(b) Type and working principle;
(c) Dosage and additive system;
(d) Volume ± 10 per cent;
(e) Location (temperature ± 50 °C at 120 km/h or 5 per cent difference of maximum temperature/pressure).
2.2. Vehicle types of different reference masses
The K factors developed by the procedures in this annex for type approval of a vehicle type with a periodically
i
regenerating system as defined in paragraph 2.20 of this Regulation, may be extended to other vehicles in the
family group with a reference mass within the next two higher equivalent inertia classes or any lower
equivalent inertia.
3. TEST PROCEDURE
The vehicle may be equipped with a switch capable of preventing or permitting the regeneration process
provided that this operation has no effect on original engine calibration. This switch shall be permitted only
for the purpose of preventing regeneration during loading of the regeneration system and during the pre-
conditioning cycles. However, it shall not be used during the measurement of emissions during the
regeneration phase; rather the emission test shall be carried out with the unchanged Original Equipment
Manufacturer (OEM) control unit.
3.1. Exhaust emission measurement between two cycles where regenerative phases occur
3.1.1. Average emissions between regeneration phases and during loading of the regenerative device shall be
determined from the arithmetic mean of several approximately equidistant (if more than 2) Type I operating
cycles or equivalent engine test bench cycles. As an alternative, the manufacturer may provide data to show
that the emissions remain constant (± 15 per cent) between regeneration phases. In this case, the emissions
measured during the regular Type I test may be used. In any other case emissions measurement for at least two
Type I operating cycles or equivalent engine test bench cycles shall be completed: one immediately after
regeneration (before new loading) and one as close as possible prior to a regeneration phase. All emissions15.2.2019 EN Official Journal of the European Union L 45/225
measurements and calculations shall be carried out according to paragraphs 6.4 to 6.6 of Annex 4a to this
Regulation. Determination of average emissions for a single regenerative system shall be calculated according to
paragraph 3.3 of this annex and for multiple regeneration systems according to paragraph 3.4 of this annex.
3.1.2. The loading process and K determination shall be made during the Type I operating cycle, on a chassis
i
dynamometer or on an engine test bench using an equivalent test cycle. These cycles may be run continuously
(i.e. without the need to switch the engine off between cycles). After any number of completed cycles, the
vehicle may be removed from the chassis dynamometer, and the test continued at a later time.
3.1.3. The number of cycles (D) between two cycles where regeneration phases occur, the number of cycles over
which emissions measurements are made (n), and each emissions measurement (M′ ) shall be reported in
sij
items 3.2.12.2.1.11.1 to 3.2.12.2.1.11.4 or items 3.2.12.2.6.4.1 to 3.2.12.2.6.4.4 of Annex 1 to this
Regulation as applicable.
3.2. Measurement of emissions during regeneration
3.2.1. Preparation of the vehicle, if required, for the emissions test during a regeneration phase, may be completed
using the preparation cycles in paragraph 6.3 of Annex 4a to this Regulation or equivalent engine test bench
cycles, depending on the loading procedure chosen in paragraph 3.1.2 of this annex.
3.2.2. The test and vehicle conditions for the Type I test described in Annex 4a to this Regulation apply before the
first valid emission test is carried out.
3.2.3. Regeneration shall not occur during the preparation of the vehicle. This may be ensured by one of the
following methods:
3.2.3.1. A ‘dummy’ regenerating system or partial system may be fitted for the pre-conditioning cycles.
3.2.3.2. Any other method agreed between the manufacturer and the Type Approval Authority.
3.2.4. A cold-start exhaust emission test including a regeneration process shall be performed according to the Type I
operating cycle, or equivalent engine test bench cycle. If the emissions tests between two cycles where
regeneration phases occur are carried out on an engine test bench, the emissions test including a regeneration
phase shall also be carried out on an engine test bench.
3.2.5. If the regeneration process requires more than one operating cycle, subsequent test cycle(s) shall be driven
immediately, without switching the engine off, until complete regeneration has been achieved (each cycle shall
be completed). The time necessary to set up a new test should be as short as possible (e.g. particular matter
filter change). The engine shall be switched off during this period.
3.2.6. The emission values during regeneration (M ) shall be calculated according to paragraph 6.6 of Annex 4a to
ri
this Regulation. The number of operating cycles (d) measured for complete regeneration shall be recorded.
3.3. Calculation of the combined exhaust emissions of a single regenerative system
Pn
M′
sij
j¼1
(1) M ¼ n ≥ 2
si n
Pd
M′
rij
j¼1
(2) M ¼
ri d
� �
M �DþM �d
(3) M ¼ si ri
pi DþdL 45/226 EN Official Journal of the European Union 15.2.2019
Where for each pollutant (i) considered:
M′ = mass emissions of pollutant (i) in g/km over one Type I operating cycle (or equivalent engine test
sij
bench cycle) without regeneration,
M′ = mass emissions of pollutant (i) in g/km over one Type I operating cycle (or equivalent engine test
rij
bench cycle) during regeneration (if d > 1, the first Type I test is run cold, and subsequent cycles are
hot),
M = mass emissions of pollutant (i) in g/km without regeneration,
si
M = mass emissions of pollutant (i) in g/km during regeneration,
ri
M = mass emissions of pollutant (i) in g/km,
pi
n = number of test points at which emissions measurements (Type I operating cycles or equivalent
engine test bench cycles) are made between two cycles where regenerative phases occur, ≥ 2,
d = number of operating cycles required for regeneration,
D = number of operating cycles between two cycles where regenerative phases occur.
For exemplary illustration of measurement parameters see Figure A13/1.
Figure A13/1
Parameters measured during emissions test during and between cycles where
regeneration occurs (schematic example, the emissions during ‘D’ may increase or
decrease)
3.3.1. Calculation of the regeneration factor K for each pollutant (i) considered
K = M /M
i pi si
M , M and K results shall be recorded in the test report delivered by the Technical Service.
si pi i
K may be determined following the completion of a single sequence.
i15.2.2019 EN Official Journal of the European Union L 45/227
3.4. Calculation of combined exhaust emissions of multiple periodic regenerating systems
Pnk
M′
sik, j
j¼1
(1) M ¼ n ≥ 2
sik n k
k
Pdk
M′
rik, j
j¼1
(2) M ¼
rik d
j
Px
M �D
sik k
(3) M ¼k¼1
si Px
D
k
k¼1
Px
M �D
rik k
(4) M ¼k¼1
ri Px
d
k
k¼1
Px Px
M D þM d
si k ri k
(5) M ¼ k¼1 k¼1
pi Px
ðD þd Þ
k k
k¼1
Px
ðM �D þM �d Þ
sik k rik k
(6) M ¼k¼1
pi Px
ðD þd Þ
k k
k¼1
M
(7) K ¼ pi
1 M
si
Where:
M = mean mass emission of all events k of pollutant (i) in g/km without regeneration,
si
M = mean mass emission of all events k of pollutant (i) in g/km during regeneration,
ri
M = mean mass emission of all events k of pollutant (i) in g/km,
pi
M = mean mass emission of event k of pollutant (i) in g/km without regeneration,
sik
M = mean mass emission of event k of pollutant (i) in g/km during regeneration,
rik
M′ = mass emissions of event k of pollutant (i) in g/km over one Type I operating cycle (or equivalent
sik,j
engine test bench cycle) without regeneration measured at point j; 1 ≤ j ≤ n,
k
M′ = mass emissions of event k of pollutant (i) in g/km over one Type I operating cycle (or equivalent
rik,j
engine test bench cycle) during regeneration (when j > 1, the first Type I test is run cold, and
subsequent cycles are hot) measured at operating cycle j; 1 ≤ j ≤ n,
k
n = number of test points of event k at which emissions measurements (Type I operating cycles or
k
equivalent engine test bench cycles) are made between two cycles where regenerative phases occur,
≥ 2,
d = number of operating cycles of event k required for regeneration,
k
D = number of operating cycles of event k between two cycles where regenerative phases occur.
kL 45/228 EN Official Journal of the European Union 15.2.2019
For an illustration of measurement parameters see Figure A13/2.
Figure A13/2
Parameters measured during emissions test during and between cycles where
regeneration occurs (schematic example)
For more details of the schematic process see Figure A13/3.
Figure A13/3
Parameters measured during emissions test during and between cycles where
regeneration occurs (schematic example)15.2.2019 EN Official Journal of the European Union L 45/229
For application of a simple and realistic case, the following description gives a detailed explanation of the
schematic example shown in Figure A13/3 above:
1. Diesel Particulate Filter ‘DPF’: regenerative, equidistant events, similar emissions (± 15 per cent) from event
to event
D = D = D
k k + 1 1
d = d = d
k k + 1 1
M – M = M – M
rik sik rik + 1 sik + 1
n = n
k
2. ‘DeNO’: the desulphurisation (SO removal) event is initiated before an influence of sulphur on emissions is
x 2
detectable (± 15 per cent of measured emissions) and in this example for exothermic reason together with
the last DPF regeneration event performed.
M′ = constant → M = M = M
sik,j=1 sik sik + 1 si2
M = M = M
rik rik + 1 ri2
For SO removal event: M , M , d , D , n = 1
2 ri2 si2 2 2 2
3. Complete system (DPF + DeNO):
x
n�M �D þM �D
M ¼ si1 1 si2 2
si
n�M d þM d
M ¼ ri1 1 ri2 2
ri
M þM n�ðM �D þM �d ÞþM �D þM �d
M ¼ si ri ¼ si1 1 ri1 1 si2 2 ri2 2
pi n�ðD þd ÞþD þd n�ðD þd ÞþD þd
1 1 2 2 1 1 2 2
The calculation of the factor (K) for multiple periodic regenerating systems is only possible after a certain
i
number of regeneration phases for each system. After performing the complete procedure (A to B, see
Figure A13/2), the original starting conditions A should be reached again.
3.4.1. Extension of approval for a multiple periodic regeneration system
3.4.1.1. If the technical parameter(s) and or the regeneration strategy of a multiple regeneration system for all events
within this combined system are changed, the complete procedure including all regenerative devices should be
performed by measurements to update the multiple k – factor.
i
3.4.1.2. If a single device of the multiple regeneration system changed only in strategy parameters (i.e. such as ‘D’
and/or ‘d’ for DPF) and the manufacturer could present technical feasible data and information to the Technical
Service that:
(a) There is no detectable interaction to the other device(s) of the system; and
(b) The important parameters (i.e. construction, working principle, volume, location etc.) are identical.L 45/230 EN Official Journal of the European Union 15.2.2019
The necessary update procedure for k could be simplified.
i
As agreed between the manufacturer and the Technical Service in such a case only a single event of
sampling/storage and regeneration should be performed and the test results (‘M ’, ‘M ’) in combination with the
si ri
changed parameters (‘D’ and/or ‘d’) could be introduced in the relevant formula(s) to update the multiple
k - factor in a mathematical way under substitution of the existing basis k - factor formula(s).
i i15.2.2019 EN Official Journal of the European Union L 45/231
ANNEX 14
EMISSIONS TEST PROCEDURE FOR HYBRID ELECTRIC VEHICLES (HEV)
1. INTRODUCTION
1.1. This annex defines the specific provisions regarding type-approval of a Hybrid Electric Vehicle (HEV) as
defined in paragraph 2.21.2 of this Regulation.
1.2. As a general principle, for the tests of Types I, II, III, IV, V, VI and OBD, hybrid electric vehicles shall be
tested according to Annexes 4a, 5, 6, 7, 9, 8 and 11 to this Regulation respectively, unless modified by this
annex.
1.3. For the Type I test only, OVC vehicles (as categorized in paragraph 2 of this annex) shall be tested
according to condition A and to condition B. The test results under both conditions A and B and the
weighted values shall be reported in the communication form.
1.4. The emissions test results shall comply with the limits under all specified test conditions of this Regulation.
2. CATEGORIES OF HYBRID ELECTRIC VEHICLES
Off-vehicle charging(1) Not off-vehicle charging(2)
Vehicle charging
(OVC) (NOVC)
Operating mode switch Without With Without With
(1) Also known as ‘externally chargeable’
(2) Also known as ‘not externally chargeable’
3. TYPE I TEST METHODS
3.1. Externally chargeable (OVC HEV) without an operating mode switch
3.1.1. Two tests shall be performed under the following conditions:
Condition A: Test shall be carried out with a fully charged electrical energy/power storage device.
Condition B: Test shall be carried out with an electrical energy/power storage device in minimum state of
charge (maximum discharge of capacity).
The profile of the State Of Charge (SOC) of the electrical energy/power storage device during different
stages of the Type I test is given in Appendix 1 to this annex.
3.1.2. Condition A
3.1.2.1. The procedure shall start with the discharge of the electrical energy/power storage device of the vehicle
while driving (on the test track, on a chassis dynamometer, etc.):
(a) At a steady speed of 50 km/h until the fuel consuming engine of the HEV starts up;
(b) Or, if a vehicle cannot reach a steady speed of 50 km/h without starting up the fuel consuming engine,
the speed shall be reduced until the vehicle can run a lower steady speed where the fuel consuming
engine does not start up for a defined time/distance (to be specified between Technical Service and
manufacturer);
(c) Or with manufacturer's recommendation.
The fuel consuming engine shall be stopped within 10 seconds of it being automatically started.L 45/232 EN Official Journal of the European Union 15.2.2019
3.1.2.2. Conditioning of vehicle
3.1.2.2.1. For compression-ignition engined vehicles the Part Two cycle described in Table A4a/2 (and Figure A4a/3)
of Annex 4a to this Regulation shall be used. Three consecutive cycles shall be driven according to
paragraph 3.1.2.5.3 of this annex.
3.1.2.2.2. Vehicles fitted with positive ignition engines shall be preconditioned with one Part One and two Part Two
driving cycles according to paragraph 3.1.2.5.3 of this annex.
3.1.2.3. After this preconditioning, and before testing, the vehicle shall be kept in a room in which the temperature
remains relatively constant between 293 and 303 K (20 °C and 30 °C). This conditioning shall be carried
out for at least six hours and continue until the engine oil temperature and coolant, if any, are within
± 2 K of the temperature of the room, and the electrical energy/power storage device is fully charged as
a result of the charging prescribed in paragraph 3.1.2.4 of this annex.
3.1.2.4. During soak, the electrical energy/power storage device shall be charged:
(a) With the on board charger if fitted; or
(b) With an external charger recommended by the manufacturer, using the normal overnight charging
procedure.
This procedure excludes all types of special charges that could be automatically or manually initiated like,
for instance, the equalization charges or the servicing charges.
The manufacturer shall declare that during the test, a special charge procedure has not occurred.
3.1.2.5. Test procedure
3.1.2.5.1. The vehicle shall be started up by the means provided for normal use to the driver. The first cycle starts on
the initiation of the vehicle start-up procedure.
3.1.2.5.2. The test procedures defined in either paragraph 3.1.2.5.2.1 or 3.1.2.5.2.2 of this annex may be used in line
with the procedure chosen in paragraph 3.2.3.2 of Annex 8 to Regulation No 101.
3.1.2.5.2.1. BS begins before or at the initiation of the vehicle start up procedure and end on conclusion of the final
idling period in the extra-urban cycle (Part Two, end of sampling (ES)).
3.1.2.5.2.2. BS begins before or at the initiation of the vehicle start up procedure and continue over a number of
repeat test cycles. It shall end on conclusion of the final idling period in the first extra-urban (Part Two)
cycle during which the battery reached the minimum state of charge according to the criterion defined
below (end of sampling (ES)).
The electricity balance Q [Ah] is measured over each combined cycle, using the procedure specified in
Appendix 2 of Annex 8 to Regulation No 101, and used to determine when the battery minimum state of
charge has been reached.
The battery minimum state of charge is considered to have been reached in combined cycle N if the
electricity balance measured during combined cycle N+1 is not more than a 3 per cent discharge,
expressed as a percentage of the nominal capacity of the battery (in Ah) in its maximum state of charge, as
declared by the manufacturer. At the manufacturer's request additional test cycles may be run and their
results included in the calculations in paragraphs 3.1.2.5.5 and 3.1.4.2 of this annex provided that the
electricity balance for each additional test cycle shows less discharge of the battery than over the previous
cycle.
Between each of the cycles a hot soak period of up to 10 minutes is allowed. The power train shall be
switched off during this period.15.2.2019 EN Official Journal of the European Union L 45/233
3.1.2.5.3. The vehicle shall be driven according to provisions in Annex 4a to this Regulation, or in case of special
gear shifting strategy, according to the manufacturer's instructions, as incorporated in the drivers'
handbook of production vehicles and indicated by a technical gear shift instrument (for drivers'
information). For these vehicles the gear shifting points prescribed in Annex 4a to this Regulation are not
applied. For the pattern of the operating curve the description according to paragraph 6.1.3 of Annex 4a
to this Regulation shall apply.
3.1.2.5.4. The exhaust gases shall be analyzed according to provisions in Annex 4a to this Regulation.
3.1.2.5.5. The test results shall be compared to the limits prescribed in paragraph 5.3.1.4 of this Regulation and the
average emission of each pollutant in grams per kilometre for condition A shall be calculated (M ).
1i
In the case of testing according to paragraph 3.1.2.5.2.1 of this annex, (M ) is simply the result of the
1i
single combined cycle run.
In the case of testing according to paragraph 3.1.2.5.2.2 of this annex, the test result of each combined
cycle run (M ), multiplied by the appropriate deterioration and K factors, shall be less than the limits
1ia i
prescribed in paragraph 5.3.1.4 of this Regulation. For the purposes of the calculation in paragraph 3.1.4
of this annex, M shall be defined as:
1i
XN
1
M ¼ M
1i N 1ia
a¼1
Where:
i: pollutant
a: cycle
3.1.3. Condition B
3.1.3.1. Conditioning of vehicle
3.1.3.1.1. For compression-ignition engined vehicles the Part Two cycle described in Table A4a/2 (and Figure A4a/3)
of Annex 4a to this Regulation shall be used. Three consecutive cycles shall be driven according to
paragraph 3.1.3.4.3 of this annex.
3.1.3.1.2. Vehicles fitted with positive ignition engines shall be preconditioned with one Part One and two Part Two
driving cycles according to paragraph 3.1.3.4.3 of this annex.
3.1.3.2. The electrical energy/power storage device of the vehicle shall be discharged while driving (on the test
track, on a chassis dynamometer, etc.):
(a) At a steady speed of 50 km/h until the fuel consuming engine of the HEV starts up;
(b) Or if a vehicle cannot reach a steady speed of 50 km/h without starting up the fuel consuming engine,
the speed shall be reduced until the vehicle can run a lower steady speed where the fuel consuming
engine just does not start up for a defined time/distance (to be specified between technical service and
manufacturer);
(c) Or with manufacturer's recommendation.
The fuel consuming engine shall be stopped within 10 seconds of it being automatically started.L 45/234 EN Official Journal of the European Union 15.2.2019
3.1.3.3. After this preconditioning, and before testing, the vehicle shall be kept in a room in which the temperature
remains relatively constant between 293 and 303 K (20 °C and 30 °C). This conditioning shall be carried
out for at least six hours and continue until the engine oil temperature and coolant, if any, are within
± 2 K of the temperature of the room.
3.1.3.4. Test procedure
3.1.3.4.1. The vehicle shall be started up by the means provided for normal use to the driver. The first cycle starts on
the initiation of the vehicle start-up procedure.
3.1.3.4.2. BS begins before or at the initiation of the vehicle start up procedure and end on conclusion of the final
idling period in the extra-urban cycle (Part Two, end of sampling (ES)).
3.1.3.4.3. The vehicle shall be driven according to Annex 4a to this Regulation, or in case of special gear shifting
strategy according to the manufacturer's instructions, as incorporated in the drivers' handbook of
production vehicles and indicated by a technical gear shift instrument (for drivers information). For these
vehicles the gear shifting points prescribed in Annex 4a to this Regulation are not applied. For the pattern
of the operating curve the description according to paragraph 6.1.3 of Annex 4a to this Regulation shall
apply.
3.1.3.4.4. The exhaust gases shall be analyzed according to Annex 4a to this Regulation.
3.1.3.5. The test results shall be compared to the limits prescribed in paragraph 5.3.1.4 of this Regulation and the
average emission of each pollutant for condition B shall be calculated (M ). The test results M , multiplied
2i 2i
by the appropriate deterioration and K factors, shall be less than the limits prescribed in paragraph 5.3.1.4
i
of this Regulation.
3.1.4. Test results
3.1.4.1. In the case of testing according to paragraph 3.1.2.5.2.1 of this annex
For communication, the weighted values shall be calculated as below:
M = (De · M + Dav · M )/(De + Dav)
i 1i 2i
Where:
M = mass emission of the pollutant i in grams per kilometre,
i
M = average mass emission of the pollutant i in grams per kilometre with a fully charged electrical
1i
energy/power storage device calculated in paragraph 3.1.2.5.5 of this annex
M = average mass emission of the pollutant i in grams per kilometre with an electrical energy/power
2i
storage device in minimum state of charge (maximum discharge of capacity) calculated in
paragraph 3.1.3.5 of this annex
De = vehicle electric range, according to the procedure described in Regulation No 101, Annex 9,
where the manufacturer shall provide the means for performing the measurement with the
vehicle running in pure electric mode,
Dav = 25 km (average distance between two battery recharges).
3.1.4.2. In the case of testing according to paragraph 3.1.2.5.2.2 of this annex
For communication, the weighted values shall be calculated as below:
M = (Dovc · M + Dav · M )/(Dovc + Dav)
i 1i 2i15.2.2019 EN Official Journal of the European Union L 45/235
Where:
M = mass emission of the pollutant i in grams per kilometre,
i
M = average mass emission of the pollutant i in grams per kilometre with a fully charged electrical
1i
energy/power storage device calculated in paragraph 3.1.2.5.5 of this annex
M = average mass emission of the pollutant i in grams per kilometre with an electrical energy/power
2i
storage device in minimum state of charge (maximum discharge of capacity) calculated in
paragraph 3.1.3.5 of this annex
Dovc = OVC range according to the procedure described in Regulation No 101, Annex 9.
Dav = 25 km (average distance between two battery recharges).
3.2. Externally chargeable (OVC HEV) with an operating mode switch
3.2.1. Two tests shall be performed under the following conditions:
3.2.1.1. Condition A: Test shall be carried out with a fully charged electrical energy/power storage device.
3.2.1.2. Condition B: Test shall be carried out with an electrical energy/power storage device in minimum state of
charge (maximum discharge of capacity).
3.2.1.3. The operating mode switch shall be positioned according to Table A14/1.
Table A14/1
Hybrid-modes — Hybrid mode
— Pure electric
— Pure fuel n(1)
— Pure electric — Pure fuel
consuming …
— Hybrid consuming
— Hybrid — Hybrid mode
— Hybrid
m(1)
Battery state of charge Switch in position Switch in position Switch in position Switch in position
Condition A Hybrid Hybrid Hybrid Most electric hy
brid mode(2)
Fully charged
Condition B Hybrid Fuel consuming Fuel consuming Most fuel con
suming mode(3)
Min. state of charge
Notes:
(1) For instance: sport, economic, urban, extra-urban position …
(2) Most electric hybrid mode:
The hybrid mode which can be proven to have the highest electricity consumption of all selectable hybrid modes
when tested in accordance with condition A of paragraph 4 of Annex 8 to Regulation No 101, to be established
based on information provided by the manufacturer and in agreement with the technical service.
(3) Most fuel consuming mode:
The hybrid mode which can be proven to have the highest fuel consumption of all selectable hybrid modes when
tested in accordance with condition B of paragraph 4 of Annex 8 to Regulation No 101, to be established based on
information provided by the manufacturer and in agreement with the technical service.
3.2.2. Condition A
3.2.2.1. If the pure electric range of the vehicle is higher than one complete cycle, on the request of the
manufacturer, the Type I test may be carried out in pure electric mode. In this case, engine preconditioning
prescribed in paragraph 3.2.2.3.1 or 3.2.2.3.2 of this annex can be omitted.L 45/236 EN Official Journal of the European Union 15.2.2019
3.2.2.2. The procedure shall start with the discharge of the electrical energy/power storage device of the vehicle
while driving with the switch in pure electric position (on the test track, on a chassis dynamometer, etc.) at
a steady speed of 70 per cent ± 5 per cent of the maximum thirty minutes speed of the vehicle
(determined according to Regulation No 101).
Stopping the discharge occurs:
(a) When the vehicle is not able to run at 65 per cent of the maximum thirty minutes speed; or
(b) When an indication to stop the vehicle is given to the driver by the standard on-board instrumentation;
or
(c) After covering the distance of 100 km.
If the vehicle is not equipped with a pure electric mode, the electrical energy/power storage device
discharge shall be achieved by driving the vehicle (on the test track, on a chassis dynamometer, etc.):
(a) At a steady speed of 50 km/h until the fuel consuming engine of the HEV starts up; or
(b) If a vehicle cannot reach a steady speed of 50 km/h without starting up the fuel consuming engine, the
speed shall be reduced until the vehicle can run a lower steady speed where the fuel consuming engine
does not start up for a defined time/distance (to be specified between technical service and
manufacturer); or
(c) With manufacturers' recommendation.
The fuel consuming engine shall be stopped within 10 seconds of it being automatically started.
3.2.2.3. Conditioning of vehicle
3.2.2.3.1. For compression-ignition engined vehicles the Part Two cycle described in Table A4a/2 (and Figure A4a/3)
of Annex 4a to this Regulation shall be used. Three consecutive cycles shall be driven according to
paragraph 3.2.2.6.3 of this annex.
3.2.2.3.2. Vehicles fitted with positive ignition engines shall be preconditioned with one Part One and two Part Two
driving cycles according to paragraph 3.2.2.6.3 of this annex.
3.2.2.4. After this preconditioning, and before testing, the vehicle shall be kept in a room in which the temperature
remains relatively constant between 293 and 303 K (20 °C and 30 °C). This conditioning shall be carried
out for at least six hours and continue until the engine oil temperature and coolant, if any, are within
± 2 K of the temperature of the room, and the electrical energy/power storage device is fully charged as
a result of the charging prescribed in paragraph 3.2.2.5 of this annex.
3.2.2.5. During soak, the electrical energy/power storage device shall be charged:
(a) With the on board charger if fitted; or
(b) With an external charger recommended by the manufacturer, using the normal overnight charging
procedure.
This procedure excludes all types of special charges that could be automatically or manually initiated like,
for instance, the equalisation charges or the servicing charges.
The manufacturer shall declare that during the test, a special charge procedure has not occurred.
3.2.2.6. Test procedure
3.2.2.6.1. The vehicle shall be started up by the means provided for normal use to the driver. The first cycle starts on
the initiation of the vehicle start-up procedure.15.2.2019 EN Official Journal of the European Union L 45/237
3.2.2.6.2. The test procedures defined in either paragraph 3.2.2.6.2.1 or 3.2.2.6.2.2 of this annex may be used in line
with the procedure chosen in paragraph 4.2.4.2 of Annex 8 to Regulation No 101,
3.2.2.6.2.1. BS begins before or at the initiation of the vehicle start up procedure and end on conclusion of the final
idling period in the extra-urban cycle (Part Two, end of sampling (ES)).
3.2.2.6.2.2. BS begins before or at the initiation of the vehicle start up procedure and continues over a number of
repeat test cycles. It shall end on conclusion of the final idling period in the first extra-urban (Part Two)
cycle during which the battery has reached the minimum state of charge according to the criterion defined
below (end of sampling (ES)).
The electricity balance Q [Ah] is measured over each combined cycle, using the procedure specified in
Appendix 2 to Annex 8 to Regulation No 101, and used to determine when the battery minimum state of
charge has been reached.
The battery minimum state of charge is considered to have been reached in combined cycle N if the
electricity balance measured during combined cycle N+1 is not more than a 3 per cent discharge,
expressed as a percentage of the nominal capacity of the battery (in Ah) in its maximum state of charge, as
declared by the manufacturer. At the manufacturer's request additional test cycles may be run and their
results included in the calculations in paragraphs 3.2.2.7 and 3.2.4 of this annex provided that the
electricity balance for each additional test cycle shows less discharge of the battery than over the previous
cycle.
Between each of the cycles a hot soak period of up to 10 minutes is allowed. The power train shall be
switched off during this period.
3.2.2.6.3. The vehicle shall be driven according to Annex 4a to this Regulation, or in case of special gear shifting
strategy, according to the manufacturer's instructions, as incorporated in the drivers' handbook of
production vehicles and indicated by a technical gear shift instrument (for drivers' information). For these
vehicles the gear shifting points prescribed in Annex 4a to this Regulation are not applied. For the pattern
of the operating curve the description according to paragraph 6.1.3 of Annex 4a to this Regulation shall
apply.
3.2.2.6.4. The exhaust gases shall be analysed according to Annex 4a to this Regulation.
3.2.2.7. The test results shall be compared to the limits prescribed in paragraph 5.3.1.4 of this Regulation and the
average emission of each pollutant in grams per kilometre for Condition A shall be calculated (M ).
1i
In the case of testing according to paragraph 3.2.2.6.2.1 of this annex, (M ) is simply the result of the
1i
single combined cycle run.
In the case of testing according to paragraph 3.2.2.6.2.2 of this annex, the test result of each combined
cycle run M , multiplied by the appropriate deterioration and K factors, shall be less than the limits
1ia i
prescribed in paragraph 5.3.1.4 of this Regulation. For the purposes of the calculation in paragraph 3.2.4
of this annex, M shall be defined as:
1i
XN
1
M ¼ M
1i N 1ia
a¼1
Where:
i: pollutant
a: cycleL 45/238 EN Official Journal of the European Union 15.2.2019
3.2.3. Condition B
3.2.3.1. Conditioning of vehicle
3.2.3.1.1. For compression-ignition engined vehicles the Part Two cycle described in Table A4a/2 and Figure A4a/2 of
Annex 4a to this Regulation shall be used. Three consecutive cycles shall be driven according to
paragraph 3.2.3.4.3 of this annex.
3.2.3.1.2. Vehicles fitted with positive ignition engines shall be preconditioned with one Part One and two Part Two
driving cycles according to paragraph 3.2.3.4.3 of this annex.
3.2.3.2. The electrical energy/power storage device of the vehicle shall be discharged according to
paragraph 3.2.2.2 of this annex.
3.2.3.3. After this preconditioning, and before testing, the vehicle shall be kept in a room in which the temperature
remains relatively constant between 293 and 303 K (20 °C and 30 °C). This conditioning shall be carried
out for at least six hours and continue until the engine oil temperature and coolant, if any, are within
± 2 K of the temperature of the room.
3.2.3.4. Test procedure
3.2.3.4.1. The vehicle shall be started up by the means provided for normal use to the driver. The first cycle starts on
the initiation of the vehicle start-up procedure.
3.2.3.4.2. Sampling shall begin (BS) before or at the initiation of the vehicle start up procedure and end on
conclusion of the final idling period in the extra-urban cycle (Part Two, end of sampling (ES)).
3.2.3.4.3. The vehicle shall be driven according to Annex 4a to this Regulation, or in case of special gear shifting
strategy, according to the manufacturer's instructions, as incorporated in the drivers' handbook of
production vehicles and indicated by a technical gear shift instrument (for drivers' information). For these
vehicles the gear shifting points prescribed in Annex 4a to this Regulation are not applied. For the pattern
of the operating curve the description according to paragraph 6.1.3 of Annex 4a to this Regulation shall
apply.
3.2.3.4.4. The exhaust gases shall be analysed according to provisions in Annex 4a to this Regulation.
3.2.3.5. The test results shall be compared to the limits prescribed in paragraph 5.3.1.4 of this Regulation and the
average emission of each pollutant for condition B shall be calculated (M ). The test results M , multiplied
2i 2i
by the appropriate deterioration and K factors, shall be less than the limits prescribed in paragraph 5.3.1.4
i
of this Regulation.
3.2.4. Test results
3.2.4.1. In the case of testing according to paragraph 3.2.2.6.2.1 of this annex.
For communication, the weighted values shall be calculated as below:
M = (De · M + Dav · M )/(De + Dav)
i 1i 2i
Where:
M = mass emission of the pollutant i in grams per kilometre,
i
M = average mass emission of the pollutant i in grams per kilometre with a fully charged electrical
1i
energy/power storage device calculated in paragraph 3.2.2.7 of this annex.15.2.2019 EN Official Journal of the European Union L 45/239
M = average mass emission of the pollutant i in grams per kilometre with an electrical energy/power
2i
storage device in minimum state of charge (maximum discharge of capacity) calculated in
paragraph 3.2.3.5 of this annex.
De = vehicle electric range with the switch in pure electric position, according to the procedure
described in Regulation No 101, Annex 9. If there is not a pure electric position, the
manufacturer shall provide the means for performing the measurement with the vehicle running
in pure electric mode.
Dav = 25 km (average distance between two battery recharges).
3.2.4.2. In the case of testing according to paragraph 3.2.2.6.2.2 of this annex.
For communication, the weighted values shall be calculated as below
M = (Dovc · M + Dav · M )/(Dovc + Dav)
i 1i 2i
Where:
M = mass emission of the pollutant i in grams per kilometre,
i
M = average mass emission of the pollutant i in grams per kilometre with a fully charged electrical
1i
energy/power storage device calculated in paragraph 3.2.2.7 of this annex
M = average mass emission of the pollutant i in grams per kilometre with an electrical energy/power
2i
storage device in minimum state of charge (maximum discharge of capacity) calculated in
paragraph 3.2.3.5 of this annex
Dovc = OVC range according to the procedure described in Regulation No 101, Annex 9.
Dav = 25 km (average distance between two battery recharges).
3.3. Not externally chargeable (not-OVC HEV) without an operating mode switch
3.3.1. These vehicles shall be tested according to Annex 4a.
3.3.2. For preconditioning, at least two consecutive complete driving cycles (one Part One and one Part Two) are
carried out without soak.
3.3.3. The vehicle shall be driven according to Annex 4a, or in case of special gear shifting strategy according to
the manufacturer's instructions, as incorporated in the drivers' handbook of production vehicles and
indicated by a technical gear shift instrument (for drivers information). For these vehicles the gear shifting
points prescribed in Annex 4a are not applied. For the pattern of the operating curve the description
according to paragraph 6.1.3 of Annex 4a shall apply.
3.4. Not externally chargeable (not-OVC HEV) with an operating mode switch
3.4.1. These vehicles are preconditioned and tested in hybrid mode according to Annex 4a. If several hybrid
modes are available, the test shall be carried out in the mode that is automatically set after turn on of the
ignition key (normal mode). On the basis of information provided by the manufacturer, the Technical
Service will make sure that the limit values are met in all hybrid modes.
3.4.2. For preconditioning, at least two consecutive complete driving cycles (one Part One and one Part Two)
shall be carried out without soak.L 45/240 EN Official Journal of the European Union 15.2.2019
3.4.3. The vehicle shall be driven according to Annex 4a to this Regulation, or in case of special gear shifting
strategy according to the manufacturer's instructions, as incorporated in the drivers' handbook of
production vehicles and indicated by a technical gear shift instrument (for drivers information). For these
vehicles the gear shifting points prescribed in or Annex 4a to this Regulation are not applied. For the
pattern of the operating curve the description according to paragraph 6.1.3 of Annex 4a to this Regulation
shall apply.
4. TYPE II TEST METHODS
4.1. The vehicles shall be tested according to Annex 5 with the fuel consuming engine running. The
manufacturer shall provide a ‘service mode’ that makes execution of this test possible.
If necessary, the special procedure provided for in paragraph 5.1.6 to this Regulation shall be used.
5. TYPE III TEST METHODS
5.1. The vehicles shall be tested according to Annex 6 with the fuel consuming engine running. The
manufacturer shall provide a ‘service mode’ that makes execution of this test possible.
5.2. The tests shall be carried out only for conditions 1 and 2 of paragraph 3.2 of Annex 6. If for any reasons
it is not possible to test on condition 2, alternatively another steady speed condition (with fuel consuming
engine running under load) should be carried out.
6. TYPE IV TEST METHODS
6.1. The vehicles shall be tested according to Annex 7 to this Regulation.
6.2. Before starting the test procedure (paragraph 5.1 of Annex 7 to this Regulation), the vehicles shall be
preconditioned as follows:
6.2.1. For OVC vehicles:
6.2.1.1. OVC vehicles without an operating mode switch: the procedure shall start with the discharge of the
electrical energy/power storage device of the vehicle while driving (on the test track, on a chassis
dynamometer, etc.):
(a) At a steady speed of 50 km/h until the fuel consuming engine of the HEV starts up; or
(b) If a vehicle cannot reach a steady speed of 50 km/h without starting up the fuel consuming engine, the
speed shall be reduced until the vehicle can run a lower steady speed where the fuel consuming engine
just does not start up for a defined time/distance (to be specified between Technical Service and
manufacturer); or
(c) With manufacturer's recommendation.
The fuel consuming engine shall be stopped within 10 seconds of it being automatically started.
6.2.1.2. OVC vehicles with an operating mode switch: the procedure shall start with the discharge of the electrical
energy/power storage device of the vehicle while driving with the switch in pure electric position (on the
test track, on a chassis dynamometer, etc.) at a steady speed of 70 per cent ± 5 per cent from the
maximum thirty minutes speed of the vehicle.
Stopping the discharge occurs:
(a) When the vehicle is not able to run at 65 per cent of the maximum thirty minutes speed; or15.2.2019 EN Official Journal of the European Union L 45/241
(b) When an indication to stop the vehicle is given to the driver by the standard on-board instrumentation;
or
(c) After covering the distance of 100 km.
If the vehicle is not equipped with a pure electric mode, the electrical energy/power storage device
discharge shall be conducted with the vehicle driving (on the test track, on a chassis dynamometer, etc.):
(a) At a steady speed of 50 km/h until the fuel consuming engine of the HEV starts up; or
(b) If a vehicle cannot reach a steady speed of 50 km/h without starting up the fuel consuming engine, the
speed shall be reduced until the vehicle can run a lower steady speed where the fuel consuming engine
does not start up for a defined time/distance (to be specified between technical service and
manufacturer); or
(c) With manufacturer's recommendation.
The engine shall be stopped within 10 seconds of it being automatically started.
6.2.2. For NOVC vehicles:
6.2.2.1. NOVC vehicles without an operating mode switch: the procedure shall start with a preconditioning of at
least two consecutive complete driving cycles (one Part One and one Part Two) without soak.
6.2.2.2. NOVC vehicles with an operating mode switch: the procedure shall start with a preconditioning of at least
two consecutive complete driving cycles (one Part One and one Part Two) without soak, performed with
the vehicle running in hybrid mode. If several hybrid modes are available, the test shall be carried out in
the mode which is automatically set after turn on of the ignition key (normal mode).
6.3. The preconditioning drive and the dynamometer test shall be carried out according to paragraphs 5.2
and 5.4 of Annex 7 to this Regulation:
6.3.1. For OVC vehicles: under the same conditions as specified by condition B of the Type I test
(paragraphs 3.1.3 and 3.2.3 of this annex).
6.3.2. For NOVC vehicles: under the same conditions as in the Type I test.
7. TYPE V TEST METHODS
7.1. The vehicles shall be tested according to Annex 9 to this Regulation.
7.2. For OVC vehicles:
It is allowed to charge the electrical energy/power storage device twice a day during mileage accumulation.
For OVC vehicles with an operating mode switch, mileage accumulation should be driven in the mode
which is automatically set after turn on of the ignition key (normal mode).
During the mileage accumulation a change into another hybrid mode is allowed if necessary in order to
continue the mileage accumulation after agreement of the Technical Service.
The measurements of emissions of pollutants shall be carried out under the same conditions as specified
by condition B of the Type I test (paragraphs 3.1.3 and 3.2.3 of this annex).L 45/242 EN Official Journal of the European Union 15.2.2019
7.3. For NOVC vehicles:
For NOVC vehicles with an operating mode switch, mileage accumulation shall be driven in the mode
which is automatically set after turn on of the ignition key (normal mode).
The measurements of emissions of pollutants shall be carried out in the same conditions as in the Type I
test.
8. TYPE VI TEST METHODS
8.1. The vehicles shall be tested according to Annex 8 to this Regulation.
8.2. For OVC vehicles, the measurements of emissions of pollutants shall be carried out under the same
conditions as specified for condition B of the Type I test (paragraphs 3.1.3 and 3.2.3 of this annex).
8.3. For NOVC vehicles, the measurements of emissions of pollutants shall be carried out under the same
conditions as in the Type I test.
9. OBD TEST METHODS
9.1. The vehicles shall be tested according to Annex 11 to this Regulation.
9.2. For OVC vehicles, the measurements of emissions of pollutants shall be carried out under the same
conditions as specified for condition B of the Type I test (paragraphs 3.1.3 and 3.2.3 of this annex).
9.3. For NOVC vehicles, the measurements of emissions of pollutants shall be carried out under the same
conditions as in the Type I test.15.2.2019 EN Official Journal of the European Union L 45/243
APPENDIX
ELECTRICAL ENERGY/POWER STORAGE DEVICE STATE OF CHARGE (SOC) PROFILE FOR OVC HEV
TYPE I TEST
Condition A of the Type I test
Condition A:
(1) Initial electrical energy/power storage device state of charge
(2) Discharge according to paragraph 3.1.2.1 or 3.2.2.2 of this annex
(3) Vehicle conditioning according to paragraph 3.1.2.2 or 3.2.2.3 of this annex
(4) Charge during soak according to paragraphs 3.1.2.3 and 3.1.2.4 of this annex, or paragraphs 3.2.2.4 and 3.2.2.5 of
this annex
(5) Test according to paragraph 3.1.2.5 or 3.2.2.6 of this annex.
Condition B of the Type I test
Condition B:
(1) Initial state of charge
(2) Vehicle conditioning according to paragraph 3.1.3.1 or 3.2.3.1 of this annex
(3) Discharge according to paragraph 3.1.3.2 or 3.2.3.2 of this annex
(4) Soak according to paragraph 3.1.3.3 or 3.2.3.3 of this annex
(5) Test according to paragraph 3.1.3.4 or 3.2.3.4 of this annex.