
Iron ores—Determination of cobalt content—4-[(5-chloro-2-pyridyl)azo]-1,3-diamino-benzene spectrophotometric method
NORM herausgegeben am 7.9.2017
Designation standards: GB/T 6730.37-2017
Publication date standards: 7.9.2017
Country: Chinese technical standard
Kategorie: Technische Normen GB