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Order of Extension in date of enforcement of IS 7226 & IS 14331 covered under Qulaity Control Order Order of Extension in date of enforcement of IS 6529 covered under Qulaity Control Order Order of Extension in date of enforcement of IS 17404:2020 covered under Qulaity Control Order Order of Extension in the date of enforcement of Quality Control Order on IS 3748, IS 7291 and IS 12146 covered under Qulaity Control OrderĮxtension in the date of enforcement of Quality Control Order on Stamping/Laminations/Cores of Transformers (with or without windings) Order of extension in the date of enforcement of Quality Control Order for Indian Standards IS 4454 (Part 4): 2001, IS 11946: 1987 & IS 11947: 1987 Order of extension in the date of enforcement of Quality Control Order for Indian Standards IS 1110: 1990 and IS 4409: 1973