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

REGD. No. D. L.-33004/99 The Gazette of India CG-DL-E-27022026-270536 EXTRAORDINARY PART III—Section 4 PUBLISHED BY AUTHORITY No. 122] | NEW DELHI, TUESDAY, FEBRUARY 24, 2026/PHALGUNA 5, 1947 BUREAU OF INDIAN STANDARDS (Department of Consumer Affairs) NOTIFICATION New Delhi, the 19th February, 2026 Ref: HQ-PUB013/1/2020-PUB-BIS (1435). — 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of the standards, if any which are given in the fourth column shall also remain in force concurrently till they are withdrawn on the date indicated against them in the fifth column. SCHEDULE (1) | (2) | (3) | (4) | (5) 1 | IS/ISO 1996-1 : 2016 | 18 February 2026 | IS 9989 : 1981 | 18 August 2026 1326 GI/2026 | (1) 2 | THE GAZETTE OF INDIA : EXTRAORDINARY | [PART III—SEC.4] Acoustics – Description, Measurement and Assessment of Environmental Noise Part 1 Basic Quantities and Assessment Procedures | 2 | IS/ISO 1996-2 : 2017 Acoustics – Description, Measurement and Assessment of Environmental Noise Part 2 Determination of Sound Pressure Levels | 18 February 2026 | IS 9989 : 1981 Assessment of Noise with Respect to Community Response | 18 August 2026 3 | IS 2264 : 2026 ISO 266 : 1997 Acoustics – Preferred Frequencies (First Revision) | 18 February 2026 | IS 2264 - 1963 Preferred Frequencies for Acoustical Measurements | 18 August 2026 4 | IS 7709 : 2026 IEC 60500 : 2017 Underwater Acoustics – Hydrophones – Properties of Hydrophones in the Frequency Range 1 Hz to 500 kHz (First Revision) | 18 February 2026 | IS 7709 - 1975 Specification for Standard Hydrophone | 18 August 2026 5 | IS 8159 : 2026 IEC 60263 : 2020 Scales and Sizes for Plotting Frequency Characteristics and Polar Diagrams (Second Revision) | 18 February 2026 | IS 8159 : 1993 Scales and Sizes for Plotting Frequency Characteristics and Polar Diagrams (First Revision) | 18 August 2026 6 | IS 11024 : 2026 ISO 389-3 : 2016 Acoustics – Reference Zero for The Calibration of Audiometric Equipment Part 3 Reference Equivalent Threshold Vibratory Force Levels for Pure Tones and Bone Vibrators (First Revision) | 18 February 2026 | IS 11024 - 1984 Specification for Standard Reference Zero for The Calibration of Pure-Tone Bone- Conduction Audiometers and Guidelines for Its Practical Application | 18 August 2026 7 | IS 14231 (Part 1) : 2026 IEC 60728-1 : 2014 Cable Networks for Television Signals, Sound Signals and Interactive Services Part 1 System Performance of Forward Paths (First Revision) | 18 February 2026 | IS 14231 (Part 1) : 1995 Cabled Distribution Systems for Television and Sound Signals Specification Part 1 Safety Requirements | 18 August 2026 [PART III-SEC.4] | THE GAZETTE OF INDIA : EXTRAORDINARY | 3 8 | IS 14231 (Part 3) : 2026 IEC 60728-3 : 2017 Television Signals, Sound Signals and Interactive Services Part 3 Active Wideband Equipment for Cable Networks (First Revision) | 18 February 2026 | IS 14231 (Part 3) : 1995 Cabled Distribution Systems for Television and Sound Signals Specification Part 3 Active Coaxial Wideband Distribution Components | 18 August 2026 9 | IS 14231 (Part 4) : 2026 IEC 60728-4 : 2007 Cable Networks for Television Signals, Sound Signals and Interactive Services Part 4 Passive Wideband Equipment for Coaxial Cable Networks (First Revision) | 18 February 2026 | IS 14231 (Part 4) : 1995 Cabled Distribution Systems for Television and Sound Signals Specification Part 4 Passive Coaxial Wideband Distribution Components | 18 August 2026 10 | IS 14231 (Part 5) : 2026 IEC 60728-5 : 2015 Cable Networks for Television Signals, Sound Signals and Interactive Services Part 5 Headend Equipment (First Revision) | 18 February 2026 | IS 14231 (Part 5) : 1995 Cabled Distribution System for Television and Sound Signals Specification Part 5 Headend | 18 August 2026 11 | IS 14231 (Part 7) : 2026 IEC 60728-12 : 2017 Cable Networks for Television Signals, Sound Signals and Interactive Services Part 7 Electromagnetic Compatibility of Systems (First Revision) | 18 February 2026 | IS 14231 (Part 7) : 1999 Cabled Distribution System for Television and Sound Signal Part 7 Electromagnetic Compatibility of Systems | 18 August 2026 12 | IS 18489 (Part 2) : 2026 ISO 20896-2 : 2023 Dentistry – Digital Impression Devices Part 2 Methods for Assessing Accuracy for Implanted Devices | 18 February 2026 | NA | NA 13 | IS 19479 : 2026 Sterile Blades for Ophthalmic Microsurgeries (for Single Use) — Requirements and Test Methods | 18 February 2026 | NA | NA 14 | IS/IEC 60118-9 : 2019 Electroacoustics — Hearing Aids Part 9 Methods of Measurements of the Performance Characteristics of Bone Conduction Hearing Aids (First Revision) | 18 February 2026 | IS 10776 (Part 4) - 1984 Methods of Measurements of Electro-Acoustical Characteristics of Hearing Aids Part 4 Hearing Aids With Bone Vibrator | 18 August 2026 15 | IS/IEC 60118-12 : 1996 Hearing Aids Part 12 Dimensions of Electrical | 18 February 2026 | IS 3720-1983 IEC 90 (1973) Dimensions of | 18 August 2026 4 | THE GAZETTE OF INDIA : EXTRAORDINARY | [PART III—SEC.4] Connector Systems (Second Revision) | Plugs for Hearing Aids (First Revision) 16 | IS/IEC 60318-6: 2007 Electroacoustics — Simulators of Human Head and Ear Part 6 Mechanical Coupler for the Measurement on Bone Vibrators (First Revision) | 18 February 2026 | IS 11449-1985 Specification for Mechanical Coupler for Measurement on Bone Vibrators | 18 August 2026 17 | IS/IEC 60461: 2010 Time and Control Code | 18 February 2026 | IS 12429 (Part 1) – 1988 Time and Control Code for Video Tape Recorders Part 1 Longitudinal Time Code (LTC) IS 12429 (Part 2): 1988 Time and Control Code for Video Tape Recorder Part 2 Vertical-Interval Time Code (VITC) | 18 August 2026 18 | IS/ISO/IEC 60793-1-31: 2019 Optical Fibres Part 1 Measurement Methods and Test Procedures Section 31 Tensile Strength (First Revision) | 18 February 2026 | IS/IEC 60793-1-31 : 2010 Optical Fibres Part 1 Measurements Methods and Test Procedures Section 31 Tensile Strength | 18 August 2026 19 | IS/IEC 60793-1-32 : 2018 Optical Fibres Part 1 Measurement Methods and Test Procedures Section 32 Coating Strippability (First Revision) | 18 February 2026 | IS/IEC 60793-1-32 : 2010 Optical Fibres Part 1 Measurement Methods and Test Procedures Section 32 Coating Strippability | 18 August 2026 20 | IS/IEC 60793-1-34 : 2021 Optical Fibres Part 1 Measurement Methods and Test Procedures Section 34 Fibre Curl (First Revision) | 18 February 2026 | IS/IEC 60793-1-34 : 2006 Optical Fibres Part 1 Measurement Methods and Test Procedures Section 34 Fibre Curl | 18 August 2026 21 | IS/IEC 60793-1-41: 2024 Optical Fibres Part 1 Measurement Methods and Test Procedures Section 41 Bandwidth (First Revision) | 18 February 2026 | IS/IEC 60793-1-41: 2010 Optical Fibres Part 1 Measurement Methods and Test Procedures Section 41 Bandwidth | 18 August 2026 CHITRA GUPTA, Scientist G & DDG (Hallmarking and Training) [ADVT.-III/4/Exty./697/2025-26] 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. Digitally signed by GORAKHA NATH Date: 2026.02.27 12:23:36 +05'30' GORAKHA NATH YADAVA YADAVA