International Organization for Standardization (ISO)
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ISO 3980:1977
Scope
The method is applicable to copper contents between 0,005 and 5 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.
ISO 3980:1977 history
1977ISO 3980:1977 Aluminium and aluminium alloys; Determination of copper; Atomic absorption spectrophotometric method