This standard establishes an atomic absorption method for the determination of zinc (with a mass fraction of zinc from 0.0005 to 0.020%) in primary magnesium
GOST 5457-1975 Dissolved acetylene and gaseous acetylene for technical purposes. Specifications*, 2024-04-17 Update
GOST 8.315-1991 State system for ensuring the uniformity of measuring. Reference materials. Basic principles, ways of development, certification, approval, registration and use
GOST 851.13-1993 history
1993GOST 851.13-1993 Primary magnesium. Method for determination of zinc