GB/T 6150.9-1985

Methods for chemical analysis of tungsten concentrates—The chlorosulphophenol S photometric method for the determination niobium content; The butylrhodamine B extraction photometric method for the determination tantalum content

NORM herausgegeben am 21.6.1985

The information about the standard:

Designation standards: GB/T 6150.9-1985
Note: UNGÜLTIG
Publication date standards: 21.6.1985
Country: Chinese technical standard
Kategorie: Technische Normen GB