GB/T 223.12-1991 Translated English of Chinese Standard. (GBT 223.12-1991, GB/T223.12-1991, GBT223.12-1991): Methods for chemical analysis of iron, steel and alloy - The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content

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https://www.chinesestandard.net, 2 dec. 2017 - 8 pagini
This Standard specifies the sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content.
 

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Additional Information
3
Subject and scope
4
Analysis steps
5
Calculation of analysis results
6
Precisions
7
Annex A Supplement Original data for precision test
8

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