Date: 2026-04-10Category: Extra OrdinaryState: Union GovernmentCountry: India
In pursuance of Sub rule 1 of Rule 15 of the Bureau of Indian Standards Rules, 2018, the Bureau of Indian Standards hereby notifies that Indian standards, particulars of which are given in the second column
**Executive Summary**
This notification issued by the Bureau of Indian Standards (BIS) on April 1, 2026, announces the establishment of nine new or revised Indian Standards effective from March 27, 2026. The document specifies that where a new standard replaces an existing one, both versions will remain in force concurrently until the scheduled withdrawal of the older standard on September 27, 2026. This action is taken in pursuance of the Bureau of Indian Standards Rules, 2018.
**Key Points / Main Content**
**Metallurgy and Steel Industry**
* **IS 228 (Part 25) : 2026 / ISO 4935 : 1989:** Establishes methods for the chemical analysis of steels, specifically determining sulphur content using infrared absorption after combustion in an induction furnace.
* **IS 1171 : 2026:** Introduces the sixth revision for Ferromanganese specifications, replacing the 2011 version.
**Construction and Engineering**
* **IS 1200 (Part 12) : 2026:** Updates the methods of measurement for building and civil engineering works, specifically for plastering and pointing (fourth revision).
* **IS 3018 : 2026:** Provides specifications for standard silica sand used for raw material testing in foundries (first revision).
**Infrastructure and Safety Guidelines**
* **IS 10386 (Part 11) : 2026:** Details guidelines for safety in the construction, operation, and maintenance of river valley projects, focusing on underground excavation (first revision).
* **IS 19452 : 2026:** Establishes a code of practice for the design, installation, testing, and maintenance of condensed aerosol fire extinguishing systems.
**Environmental and Resource Management**
* **IS 19738 : 2026:** Provides guidelines for parameters and assessment criteria regarding downstream flow to maintain ecological balance.
* **IS 19744 : 2026:** Sets guidelines for the preparation of Catchment Area Treatment (CAT) plans.
**Welding Consumables**
* **IS 18641 : 2026 / ISO 544 : 2024:** Defines technical delivery conditions for filler materials and fluxes, including product types, dimensions, tolerances, and markings (first revision).
**Impact Analysis**
**Stakeholder: Industrial Manufacturers (Steel, Foundries, Welding)**
**Impact**
Manufacturers must adapt to updated specifications for ferromanganese, silica sand, and welding consumables. Chemical analysis methods for steel have also been formalized under the 2026 standard.
**Action Required**
Review the revised standards and update manufacturing processes, quality control protocols, and technical delivery conditions to ensure compliance before the September 27, 2026, deadline.
**Stakeholder: Civil Engineering and Construction Firms**
**Impact**
Measurement methods for plastering and pointing have been revised. Additionally, new safety guidelines for underground excavation in river valley projects are now in effect.
**Action Required**
Update project estimation templates and on-site safety manuals to align with the fourth revision of IS 1200 and the first revision of IS 10386.
**Stakeholder: Environmental and Fire Safety Consultants**
**Impact**
New standards now govern the implementation of Catchment Area Treatment plans, ecological flow assessments, and the installation of aerosol fire extinguishing systems.
**Action Required**
Ensure all new project designs and fire safety installations established after March 27, 2026, adhere to the specified codes of practice and guidelines.
**Stakeholder: Testing and Certification Laboratories**
**Impact**
Laboratories must update their accreditation scopes and testing procedures to reflect the 2026 revisions and the new ISO-aligned methods.
**Action Required**
Calibrate equipment and train personnel on the new methodologies (e.g., infrared absorption for sulphur) to provide certification against the latest standards.
Key Entities Referenced
Bureau of Indian Standards (BIS): The national standards body of India responsible for establishing and notifying the technical standards detailed in the schedule.
Bureau of Indian Standards Rules, 2018: The statutory rules under which Rule 15(1) provides the authority to establish new standards and withdraw existing ones.
Department of Consumer Affairs: The central government department that oversees the functions and notifications of the Bureau of Indian Standards.
रजिस्ट्री स.ं डी.एल.- 33004/99 REGD. No. D. L.-33004/99
सी.जी.-डी.एxलx.x-GअID.H-1x3x0x 42026-271776
CG-DLxx-xEG-I1D3E0x4x2x0 26-271776
असाधारण
EXTRAORDINARY
भाग III—खण् ड 4
PART III—Section 4
प्राजधकार स ेप्रकाजित
PUBLISHED BY AUTHORITY
स.ं 254] नई दिल्ली, िुक्रिार, अप्रलै 10, 2026/चत्रै 20, 1948
No. 254] NEW DELHI, FRIDAY, APRIL 10, 2026/CHAITRA 20, 1948
भारतीय मानक ब्य रू ो
(उपभोक्त ा मामल े जिभाग)
अजधसचू ना
नई दिल्ली, 1 अप्रलै , 2026
सिं भ:भ HQ-PUB013/1/2020-PUB-BIS (1515).— भारतीय मानक ब्यूरो जनयम, 2018 के जनयम 15
के उपजनयम (1) के अनुसरण म ें भारतीय मानक ब्यूरो एतिद्वारा अजधसूजचत करता ह ै की जिन भारतीय मानकों के जििरण
इसमें संलग्न अनूसूची के जद्वतीय स्ट्तंभ में दिये गये ह,ैं तीसरे स्ट्तभं में इंजगत जतजि को स्ट्िाजपत हो गये ह|ैं चौिे स्ट्तंभ में दिय े
गय े मानकों के जििरण, यदि कोई हो तो ि े भी साि-साि लाग ू रहगें े िब तक ि े पााँचि ें स्ट्तंभ में इंजगत जतजि को िापस जलए
िाने ह|ैं
2571 GI/2026 (1)2 THE GAZETTE OF INDIA : EXTRAORDINARY [PART III—SEC.4]
अनसु चू ी
क्रम स्ट्िाजपत भारतीय मानकों की सख्ं या, िर् भ प्रजतस्ट्िापन जतजि भारतीय मानकों, यदि िापस जलए िापस होन ेकी
स.ं जतजि
तिा िीर्कभ िान ेह,ैं की सख्ं या, िर् भतिा िीर्कभ
(1) (2) (3) (4) (5)
1 आई एस 228 (भाग 25) : 2026 27 माचभ 2026 लागू नहीं लागू नहीं
आई एस ओ 4935 : 1989
इस्ट्पात के रासायजनक जिश्लेर्ण की
पद्धजतयााँ
भाग 25 सल्फर की मात्रा ज्ञात करना —
प्रेरण भट्टी में िहन के बाि इन्फ्रारेड
अििोर्ण पद्धजत
2 आई एस 1171 : 2026 27 माचभ 2026 आई एस 1171 : 2011 27 जसतंबर 2026
फेरोमैंगनीि — जिजिजि फेरोमैंगनीज़ — जिजिजि
(छठा पुनरीक्षण) (पाचिााँ पुनरीक्षण)
3 आई एस 1200 (भाग 12) : 2026 27 माचभ 2026 आई एस 1200 (भाग XII) – 1976 27 जसतंबर 2026
भिन की माप की पद्धजत एिं जसजिल भिन की माप की पद्धजत एिं जसजिल
इंिीजनयररंग कायभ इंिीजनयररंग कायभ
भाग 12 प्लास्ट्टररंग और पॉइंरटंग भाग XII प्लास्ट्टररंग और पॉइंरटंग
(चौिा पुनरीक्षण)
(तीसरा पुनरीक्षण )
आई एस 3018 : 2026 27 माचभ 2026 आई एस 3018 : 1977 27 जसतंबर 2026
4
फाउंड्रीज़ में कच्चे माल के परीक्षण के जलए फाउंड्रीज़ में कच्चे माल के परीक्षण के
मानक जसजलका रेत — जिजिजि जलए मानक जसजलका रेत के जलए
जिजिजि
(पहला पुनरीक्षण)
आई एस 10386 (भाग 11) : 2026 27 माचभ 2026 आई एस 10386 (भाग 11) : 2012 27 जसतंबर 2026
5
निी घाटी पररयोिनाओं के जनमाणभ , निी घाटी पररयोिनाओं के जनमाणभ ,
प्रचालन और रखरखाि में सुरक्षा — प्रचालन और रखरखाि की सुरक्षा
दििाजनिेि संजहता
भाग 11 भूजमगत उत्खनन भाग 11 भूजमगत उत्खनन
(पहला पुनरीक्षण)
6 आई एस 18641 : 2026 27 माचभ 2026 आई एस 18641 : 2024 27 जसतंबर 2026
आई एस ओ 544 : 2024 आई एस ओ 544 : 2017[भाग III—खण् ड 4] भारत का रािपत्र : असाधारण 3
क्रम स्ट्िाजपत भारतीय मानकों की सख्ं या, िर् भ प्रजतस्ट्िापन जतजि भारतीय मानकों, यदि िापस जलए िापस होन ेकी
स.ं जतजि
तिा िीर्कभ िान ेह,ैं की सख्ं या, िर् भतिा िीर्कभ
(1) (2) (3) (4) (5)
िेलल्डंग उपभोग्य — भरण सामग्री और िेलल्डंग उपभोग्य — भरण सामग्री
फ्लक्स के जलए तकनीकी जितरण की और फ्लक्स के जलए तकनीकी जितरण
जस्ट्िजतयााँ — उत्पाि का प्रकार, आयाम, की जस्ट्िजतयााँ — उत्पाि का प्रकार,
छूट और सूचनांकन आयाम, छूट और सूचनांकन
(पहला पुनरीक्षण)
आई एस 19452 : 2026 27 माचभ 2026 लागू नहीं लागू नहीं
7
संघजनत एरोसोल अजग्न िमन प्रणाली का
जडज़ाइन, संस्ट्िापना, परीक्षण और
रखरखाि — रीजत संजहता
8 आई एस 19738 : 2026 27 माचभ 2026 लागू नहीं लागू नहीं
पाररजस्ट्िजतक संतुलन बनाए रखने के जलए
अनुप्रिाह प्रिाह के जलए मापिण्ड और
आंकलन मानिंड — दििाजनिेि
9 आई एस 19744 : 2026 27 माचभ 2026 लागू नहीं लागू नहीं
िलग्रहण क्षेत्र उपचार (सी ए टी) योिना
की तैयारी — दििाजनिेि
जनिात सुल्ताना हक़, िैज्ञाजनक िी एिं उप महाजनिेिक (प्रयोगिालाए)ाँ
[जिज्ञापन-III/4/असा./22/2026-27]
BUREAU OF INDIAN STANDARDS
(Department of Consumer Affairs)
NOTIFICATION
New Delhi, the 1st April, 2026
Ref: HQ-PUB013/1/2020-PUB-BIS (1515).— In pursuance of Sub-rule (1) of Rule (15) of the Bureau of
Indian Standards Rules, 2018, the Bureau of Indian Standards hereby notifies that Indian standards, particulars of which
are given in the second column of the schedule hereto annexed have been established on the date indicated against it in
third column. The particulars of the standards, if any which are given in the fourth column shall also remain in force
concurrently till they are withdrawn on the date indicated against them in the fifth column.4 THE GAZETTE OF INDIA : EXTRAORDINARY [PART III—SEC.4]
SCHEDULE
Sl. No., Year & Title of the Indian Date of No. , Year & Title of the Date of
No. Standards Established Establishment Indian Standards to be Withdrawal
Withdrawn, if any
(1) (2) (3) (4) (5)
1 IS 228 (Part 25) : 2026 27 March 2026 NA NA
ISO 4935 : 1989
Methods for Chemical Analysis of
Steels
Part 25 Determination of Sulphur
Content — Infrared Absorption
Method After Combustion in an
Induction Furnace
2 IS 1171 : 2026 27 March 2026 IS 1171 : 2011 27 September 2026
Ferromanganese — Specification Ferromanganese —
(Sixth Revision) Specification (Fifth Revision)
3 IS 1200 (Part 12) : 2026 27 March 2026 IS 1200 (Part XII) – 1976 27 September 2026
Method of Measurement of Method of Measurement of
Building and Civil Engineering Building
Works and Civil Engineering Works
Part 12 Plastering and Pointing Part XII Plastering and Pointing
(Fourth Revision) (Third Revision)
4 IS 3018 : 2026 27 March 2026 IS 3018 – 1977 27 September 2026
Standard Silica Sand for Raw Specification for Standard
Material Testing in Foundries — Silica Sand for Raw Material
Specification Testing in Foundries
(First Revision)
5 IS 10386 (Part 11) : 2026 27 March 2026 IS 10386 (Part 11) : 2012
Safety in Construction, Operation Safety Code for Construction, 27 September 2026
and Maintenance of River Valley Operation
Projects — Guidelines and Maintenance of River
Part 11 Underground Excavation Valley
(First Revision) Projects
Part 11 Underground
Excavation
6 IS 18641 : 2026 27 March 2026 IS 18641 : 2024 27 September 2026
ISO 544 : 2024 ISO 544 : 2017
Welding consumables — Welding consumables —
Technical Delivery Conditions for Technical Delivery Conditions
Filler Materials and Fluxes — for Filler Materials and Fluxes
Type of Product, Dimensions, — Type of Product,
Tolerances and Markings Dimensions, Tolerances and
(First Revision) Markings
7 IS 19452 : 2026 27 March 2026 NA NA
Design, Installation, Testing and
Maintenance of Condensed
Aerosol Fire Extinguishing
System — Code of Practice[भाग III—खण् ड 4] भारत का रािपत्र : असाधारण 5
Sl. No., Year & Title of the Indian Date of No. , Year & Title of the Date of
No. Standards Established Establishment Indian Standards to be Withdrawal
Withdrawn, if any
(1) (2) (3) (4) (5)
8 IS 19738 : 2026 27 March 2026 NA NA
Parameters and Assessment
Criteria for Downstream Flow to
Maintain Ecological Balance —
Guidelines
9 IS 19744 : 2026 27 March 2026 NA NA
Preparation of Catchment Area
Treatment (CAT) Plan —
Guidelines
NISHAT SULTANA HAQUE, Scientist G & DDG (Labs)
[ADVT.-III/4/Exty./22/2026-27]
Uploaded by Dte. of Printing at Government of India Press, Ring Road, Mayapuri, New Delhi-110064
and Published by the Controller of Publications, Delhi-110054.