GB 4581.7-1984

Alunite ores--Determination of potassium and sodium contents--Potassium tetraphenylborate gravimetric method and flame emission spectrophotometric methods

NORMA vydaná dňa 1.1.1984

The information about the standard:

Designation standards: GB 4581.7-1984
Note: NEPLATNÁ
Publication date standards: 1.1.1984
Country: Chinese technical standard
Kategória: Technické normy GB