NORMSERVIS s.r.o.

GB/T 6150.9-1985

Methods for chemical analysis of tungsten concentrates—The chlorosulphophenol S photometric method for the determination niobium content; The butylrhodamine B extraction photometric method for the determination tantalum content

NORMA vydána dne 21.6.1985

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The information about the standard:

Designation standards: GB/T 6150.9-1985
Note: NEPLATNÁ
Publication date standards: 21.6.1985
Country: Chinese technical standard
Kategorie: Technické normy GB