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 Amendments to Indian standards

REGD. No. D. L.-33004/99 The Gazette of India CG-DL-E-25052026-272849 EXTRAORDINARY PART III—Section 4 PUBLISHED BY AUTHORITY No. 342] NEW DELHI, MONDAY, MAY 25, 2026/JYAISTHA 4, 1948 3690 GI/2026 BUREAU OF INDIAN STANDARDS (Department of Consumer Affairs) NOTIFICATION New Delhi, the 18th May, 2026 Ref: HQ-PUB015/1/2020-PUB-BIS (1539).— 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 Amendments to Indian standards, particulars of which are given in schedule hereto annexed have been established. SCHEDULE +-----+---------------------------------------------------------+-------------------------------+------------------------------+-------------------------------------------------------------+ | Sl | No., Year & Title of the Indian | No. and | Date of | Date till which | | No. | Standard | Month/Year of the | Establishment of the | the standard | | | | Amendment | Amendment | without the | | | | | | amendment as | | | | | | mentioned in | | | | | | column 3 shall | | | | | | remain in force | +-----+---------------------------------------------------------+-------------------------------+------------------------------+-------------------------------------------------------------+ | (1) | (2) | (3) | (4) | (5) | +=====+=========================================================+===============================+==============================+=============================================================+ | 1 | IS 1391 (Part 1): 2023 | Amendment No. 1 | 15 May 2026 | 14 November | | | Room Air Conditioners — | May 2026 | | 2026 | | | Specification | | | | | | Part 1 Unitary Air Conditioners | | | | | | (Fourth Revision) | | | | +-----+---------------------------------------------------------+-------------------------------+------------------------------+-------------------------------------------------------------+ | 2 | IS 1391 (Part 2): 2023 | Amendment No. 1 | 15 May 2026 | 14 November | | | Room Air Conditioners — | May 2026 | | 2026 | | | Specification | | | | | | Part 2 Split Air Conditioners | | | | | | (Fourth Revision) | | | | +-----+---------------------------------------------------------+-------------------------------+------------------------------+-------------------------------------------------------------+ CHITRA GUPTA, Scientist G & DDG (Hallmarking and Training) [ADVT.-III/4/Exty./110/2026-27] 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. SARVESH KUMAR Digitally signed by SARVESH SRIVASTAVA Date: 2026.05.25 21:09:06+05:30