ISO 3978:1976 Preview
Aluminium and aluminium alloys -- Determination of chromium -- Spectrophotometric method using diphenylcarbazide, after extraction
This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
The method is applicable to chromium contents between 0,002 and 0,60 % (m/m). It may be extended to chromium contents of up to 1,5 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.
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