GB/T 223.12-1991

Methodsfor chemical analysis of ironsteel and alloy--The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content

NORMA vydaná dňa 6.9.1991

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The information about the standard:

Designation standards: GB/T 223.12-1991
Note: NEPLATNÁ
Publication date standards: 6.9.1991
Country: Chinese technical standard
Kategória: Technické normy GB