GB/T 223.11-1991

Methods for chemical analysis of iron, steel and alloy The ammonium persulfate oxidation volumetric method for the determination of chromium content

NORMA vydána dne 6.9.1991

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The information about the standard:

Designation standards: GB/T 223.11-1991
Note: NEPLATNÁ
Publication date standards: 6.9.1991
Country: Chinese technical standard
Kategorie: Technické normy GB