The Bureau of Indian Standards (BIS) on January 01, 2025, issued the date of withdrawal for the Specification for Photometric Integrators and the Specification for Lamp (Bulb) for Cycle Dynamo.
The following Indian Standards were withdrawn on December 09, 2024:
• IS 2407 – 1963 Specification for Photometric Integrators
• IS 11980 – 1987 Specification for Lamp (Bulb) for Cycle Dynamo
[Notification No. HQ-PUB017/1/2020-PUB-BIS (1122)