
Higher purity copper cathode—Determination of phosphorus content—Heteropoly phosphato-vanadato-molybdicacid-crystal violet spectrophotometric method
NORMA vydaná dňa 14.12.1991
Designation standards: GB/T 13293.6-1991
Note: NEPLATNÁ
Publication date standards: 14.12.1991
Country: Chinese technical standard
Kategória: Technické normy GB