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Brown coals, hard coals and anthracite. Method for determination of abrasive coefficient of ash
Document status: Replaced by GOST 21708-96
Bauxite. Methods for determination of manganese oxide (II) content
Document status: Active
Goods of household chemistry. Method for determination of water-insoluble residue (abrasive)
Document status: Active
Petroleum products. Methods for determination of flash and fire points in open cup
Document status: Replaced by GOST 4333-2021
