Methods for chemical analysis of aluminium and aluminium alloys—Part 7:Determination of manganese content
全国有色金属标准化技术委员会(SAC/TC 243)
GB/T 20975的本部分规定了高碘酸钾分光光度法、Na2EDTA滴定法测定铝及铝合金中锰含量。
本部分适用于铝及铝合金中锰含量的仲裁测定。高碘酸钾分光光度法测定范围:0.004 0%～2.00%；Na2EDTA滴定法测定范围:8.50%～45.00%。
本部分中高碘酸钾分光光度法不适用于铈质量分数＞0.005%的铝及铝合金。
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