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-12082026-275409 EXTRAORDINARY PART III—Section 4 PUBLISHED BY AUTHORITY No. 499] NEW DELHI, WEDNESDAY, AUGUST 12, 2026/SHRAVAN 21, 1948 BUREAU OF INDIAN STANDARDS (Department of Consumer Affairs) NOTIFICATION New Delhi, the 5th August, 2026 Ref: HQ-PUB015/1/2020-PUB-BIS (1585). 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 +-----+---------------------------------------------------+-----------------------------+-----------------------------------+-----------------------------------------------------------------------------------------+ | SI. | No., Year & Title of the Indian | No. and | Date of | Date till which the | | No. | Standard | Month/Year of the | Establishment of | standard without | | | | Amendment | the Amendment | the amendment as | | | | | | mentioned in | | | | | | column 3 shall | | | | | | remain in force | | | | | | (5) | +=====+===================================================+=============================+===================================+=========================================================================================+ | (1) | (2) | (3) | (4) | | +-----+---------------------------------------------------+-----------------------------+-----------------------------------+-----------------------------------------------------------------------------------------+ | 1 | IS 4990: 2024 | Amendment No. 1 | 03 August 2026 | 02 February 2027 | | | Plywood for Concrete Shuttering | August 2026 | | | | | Works — Specification | | | | | | (Fourth Revision) | | | | +-----+---------------------------------------------------+-----------------------------+-----------------------------------+-----------------------------------------------------------------------------------------+ | 2 | IS 9167: 2025 | Amendment No. 1 | 03 August 2026 | 02 February 2027 | | | Hearing Protectors — Specification | August 2026 | | | | | (First Revision) | | | | +-----+---------------------------------------------------+-----------------------------+-----------------------------------+-----------------------------------------------------------------------------------------+ | 3 | IS 13983: 1994 | Amendment No. 4 | 03 August 2026 | 02 February 2027 | | | Stainless Steel Sinks for Domestic | August 2026 | | | | | Purposes — Specification | | | | +-----+---------------------------------------------------+-----------------------------+-----------------------------------+-----------------------------------------------------------------------------------------+ S. K. VERMA, Scientist F & DDG (Hallmarking) [ADVT.-III/4/Exty./268/2026-27] 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.