Tin concentrates. Methods for the determination of wolframe trioxide mass part
NORMA vydána dne 1.1.1978
Designation standards: GOST 22221.2-76
Publication date standards: 1.1.1978
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST
Implemented changes and corrections:
Amd. 3.83
Amd. 11.87