GB 223.44-1985

Methods for chemical analysis of iron, steel and alloy--The tetraphenylarsonium chloride-thiocyanate-trichloromethane extraction photometric method for the determination of tungsten content

NORMA vydána dne 1.1.1985

The information about the standard:

Designation standards: GB 223.44-1985
Note: NEPLATNÁ
Publication date standards: 1.1.1985
Country: Chinese technical standard
Kategorie: Technické normy GB