
Zirconium and hafnium oxides--Determination of aluminium content--Chromazurol S-tetradecyl pyridine chloride photometric method
NORMA vydána dne 7.6.1981
Designation standards: GB/T 2590.4-1981
Note: NEPLATNÁ
Publication date standards: 7.6.1981
Country: Chinese technical standard
Kategorie: Technické normy GB