Methods for chemical analysis of tungsten concentrates—The 2-(5-bromo pyridylazo)-5-diethylaminophenol photometric method for the determination of antimony content
NORM herausgegeben am 21.6.1985
Designation standards: GB/T 6150.19-1985
Note: UNGĂśLTIG
Publication date standards: 21.6.1985
Country: Chinese technical standard
Kategorie: Technische Normen GB