The Bureau of Indian Standards, (BIS) on November 28, 2023, notified the date of establishment and withdrawal of a few Indian standards particulars.
In the following particulars, the date of establishment is November 07, 2023
•IS 8419: 2023 Underdrainage System of Rapid Sand Gravity Filtration Equipment — Requirements (First Revision)
•IS 17955: 2023 Sand and Gravel for Use as Filtration Medium — Specification
In the following particulars, the date of withdrawal is December 07, 2023
•IS 8419 (Part 2): 1984 Requirements for Rapid Sand Gravity Filtration Equipment Part 2 Underdrainage System
•IS 8419 (Part 1): 1977 Requirements for Filtration Equipment Part 1 Filtration Media — Sand and Gravel
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[Notification No. Ref: HQ-PUB013/1/2020-PUB-BIS (729)]
