Methods for chemical analysis of iron ores The 4-[(5-chloro-2-phridyl)azo]-1,3-diaminobenzene photometric method for the determination of cobalt content
NORMA vydaná dňa 19.8.1986
Designation standards: GB/T 6730.37-1986
Note: NEPLATNÁ
Publication date standards: 19.8.1986
Country: Chinese technical standard
Kategória: Technické normy GB