
Alunite ores--Determination of potassium and sodium contents--Potassium tetraphenylborate gravimetric method and flame emission spectrophotometric methods
NORM herausgegeben am 1.1.1984
Designation standards: GB 4581.7-1984
Note: UNGÜLTIG
Publication date standards: 1.1.1984
Country: Chinese technical standard
Kategorie: Technische Normen GB