In pursuance of Sub rule (1) of Rule (15) of the Bureau of Indian Standards Rules, 2018, the Bureau of Indian Standards

CG-DL-E-05122025-268249 EXTRAORDINARY PART III—Section 4 7893 GI/2025 (1) BUREAU OF INDIAN STANDARDS (Department of Consumer Affairs) NOTIFICATION New Delhi, the 17th November, 2025 Ref: HQ-PUB017/1/2020-PUB-BIS (1369).— 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that the Indian standards, particulars of which are given in schedule hereto annexed have been cancelled and stands withdrawn from the date indicated against it in the third column. SCHEDULE | Sl No. | No., Year & Title of the Indian Standard Withdrawn | Date of Withdrawal | |---|---|---| | (1) | (2) | (3) | | 1 | IS 4257 (Part 2) - 1986 Dimensions for Clamping Arrangements for Porcelain Transformer Bushings Part 2 for 72.5 kV and 123 kV Bushings | 10 November 2025 | | 2 | IS 4318 : 1993 Solid Core Porcelain Insulators for Overhead Traction Lines — Specification (First Revision) | 10 November 2025 | | 3 | IS 5350 (Part 1) - 1970 Dimensions of Indoor and Outdoor Porcelain Post Insulators and Post Insulator Units for Systems with Nominal Voltages Greater Than 1000 V Part I Indoor Post Insulators | 10 November 2025 | | 4 | IS 5350 (Part II) - 1973 Dimensions of Indoor and Outdoor Porcelain Post Insulators and Post Insulator Units for Systems with Nominal Voltage Greater Than 1000 V Part II Outdoor Cylindrical Post Insulators (First Revision) | 10 November 2025 | | 5 | IS 5350 (Part III) - 1971 Dimensions of Indoor and Outdoor Porcelain Post Insulators and Post Insulator Units for Systems with Nominal Voltages Greater Than 1 000 V Part III Outdoor Pedestal Post Insulators | 10 November 2025 | | 6 | IS 7648 – 1975 Specification for Silicone Compounds for Application on High Voltage Porcelain Insulators | 10 November 2025 | |---|---|---| | 7 | IS 13134 : 1992 Guide for the Selection of Insulators in Respect of Polluted Conditions | 10 November 2025 | | 8 | IS 13203 : 1991 Method for Verifying Accuracy of Tan Delta Measurements | 10 November 2025 | CHITRA GUPTA , Scientist G & DDG (Hallmarking and Training) [ADVT.-III/4/Exty./500/2025-26] and Published by the Controller of Publications, Delhi-110054. GORAKHA NATH NATH YADAVA Date: 2025.12.05 11:53:06 +05'30' YADAVA