
Rare-earth metals and their oxides--Determination of aluminum content--Aluminum-chromazurol S-hexadecyl-trimethyl ammonium bromide-ethanol spectrophotometric method
NORMA vydaná dňa 1.1.1990
Designation standards: GB/T 12690.24-1990
Note: NEPLATNÁ
Publication date standards: 1.1.1990
Country: Chinese technical standard
Kategória: Technické normy GB