GB 223.50-1985

Methods for chemical analysis of iron, steel and alloy--The phenylfluorone-CTMAB direct photometric method for the determination of tin content

STANDARD published on 1.1.1985

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The information about the standard:

Designation standards: GB 223.50-1985
Note: WITHDRAWN
Publication date standards: 1.1.1985
Country: Chinese technical standard
Category: Technical standards GB