Methods for chemical analysis of tungsten concentrates—Determination of tungsten trioxide content—The ammonium tungstate igniting gravimetric method
NORMA vydaná dňa 31.3.2008
Designation standards: GB/T 6150.1-2008
Note: NEPLATNÁ
Publication date standards: 31.3.2008
Country: Chinese technical standard
Kategória: Technické normy GB