The Bureau of Indian Standards (BIS) on July 16, 2024, issued the date of withdrawal for Indian Standard Particulars such as Fireclay Nozzles.
The following has been stated: -
•IS 4564 - 1968 Specification for Fireclay Nozzles
•IS 4565 - 1968 Specification for Fireclay Stoppers
•IS 8966 - 1978 Specification for Magnesite Nozzles
For the above-mentioned Indian standard particular, the date of withdrawal is June 28, 2024.
[Notification No. Ref: HQ-PUB017/1/2020-PUB-BIS (942)]