Methods for chemical analysis of aluminium oxide--The diphenyl carbazide photometric method for the determination of chromium sesquioxide content
NORMA vydaná dňa 24.7.1986
Designation standards: GB/T 6609.8-1986
Note: NEPLATNÁ
Publication date standards: 24.7.1986
Country: Chinese technical standard
Kategória: Technické normy GB