Methods for chemical analysis of tungsten concentrates—The 2-(5-bromo pyridylazo)-5-diethylaminophenol photometric method for the determination of antimony content
STANDARD published on 21.6.1985
Designation standards: GB/T 6150.19-1985
Note: WITHDRAWN
Publication date standards: 21.6.1985
Country: Chinese technical standard
Category: Technical standards GB