The Bureau of Indian Standards (Department of Consumer Affairs) has issued a notification, reference HQ-PUB017/1/2020-PUB-BIS(1358), dated November 3, 2025, in New Delhi. In accordance with Rule 15(1) of the Bureau of Indian Standards Rules, 2018, it announces the withdrawal of the Indian standard IS/ISO 50045: 2019, titled "Technical Guidelines for the Evaluation of Energy Savings of Thermal Power Plants", effective October 30, 2025. The notification is issued by Chitra Gupta, Scientist G & DDG (Hallmarking and Training).
Key Entities Referenced
Bureau of Indian Standards Rules, 2018: Rules under which the Bureau of Indian Standards operates, specifically Rule 15, Sub-rule (1).
Bureau of Indian Standards: The department that is cancelling and withdrawing Indian Standards.
IS/ISO 50045: 2019: Indian Standard concerning technical guidelines for evaluating energy savings in thermal power plants, being withdrawn.
रजिस्ट्री स.ं डी.एल.- 33004/99 REGD. No. D. L.-33004/99
सी.जी.-डी.एल.-अ.-11112025-267552
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CG-DL-E-11112025-267552
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असाधारण
EXTRAORDINARY
भाग III—खण् ड 4
PART III—Section 4
प्राजधकार स ेप्रकाजित
PUBLISHED BY AUTHORITY
स.ं 723] नई दिल्ली, सोमिार, निम्ब र 10, 2025/ कार्तकभ 19, 1947
No. 723] NEW DELHI, MONDAY, NOVEMBER 10, 2025/ KARTIKA 19, 1947
भारतीय मानक ब्यरू ो
(उपभोक्ता मामल ेजिभाग)
अजधसचू ना
नई दिल्ली, 3 निम्ब र, 2025
सिं भ:भ HQ-PUB017/1/2020-PUB-BIS(1358)—भारतीय मानक ब्यूरो जनयम, 2018 के जनयम 15 के
उपजनयम (1) के अनुसरण म ें भारतीय मानक ब्यूरो एतिद्वाराअजधसूजचत करता ह ै की जिन भारतीय मानको का जििरण
इसके साथ सलं ग्र अनूसूची म े दिया गया ह,ै उन्ह ें कॉलम तीन में इंजगत तारीख को रद्द कर दिया या और िाजपस ल े जलया
गया ह।ै
अनसु चू ी
क्रम िाजपस जलए गए भारतीय मानकों की सख्ं या, िर् भतथा िीर्कभ िाजपस जलए िान ेकी
स.ं तारीख
(1) (2) (3)
1 आई एस/ आई एस ओ 50045 : 2019 30 अक्टूबर 2025
थमभल प ािर पलांट म ेंऊिाभ बचत के मल्ू यांकन संबंधी तकनीकी दििा जनिेि
जचत्रा गुप्ता, िैज्ञाजनक िी एिं उप महाजनििे क (हॉलमार्किंग एिं रेननगं )
[जिज्ञापन-III/4/असा./457/2025-26]
7457 GI/2025 (1)2 THE GAZETTE OF INDIA : EXTRAORDINARY [PART III—SEC.4]
BUREAU OF INDIAN STANDARDS
(Department of Consumer Affairs)
NOTIFICATION
New Delhi, the 3rd November, 2025
Ref: HQ-PUB017/1/2020-PUB-BIS (1358).—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 the Indian standards, particulars of
which are given in schedule hereto annexed have been cancelled and stands withdrawn from the date indicated against
it in the third column.
SCHEDULE
Sl. No., Year & Title of the Indian Standard Withdrawn Date of Withdrawal
No.
(1) (2) (3)
IS/ISO 50045 : 2019 30 October 2025
Technical Guidelines for the Evaluation of Energy Savings of Thermal Power Plants
CHITRA GUPTA, Scientist G & DDG (Hallmarking and Training)
[ADVT.-III/4/Exty./457/2025-26]
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.