
Methods for chemical analysis of tungsten concentrates—The ammonium tungstate igniting gravimetric method for the determination of tungsten trioxide content
NORMA vydaná dňa 21.6.1985
Designation standards: GB/T 6150.1-1985
Note: NEPLATNÁ
Publication date standards: 21.6.1985
Country: Chinese technical standard
Kategória: Technické normy GB