Methods for chemical analysis of aluminium and aluminium alloys—Part 31:Determination of phosphorus content—Molybdenum blue spectrophotometry
全国有色金属标准化技术委员会(SAC/TC 243)
GB/T 20975的本部分规定了钼蓝分光光度法测定铝及铝合金中磷含量的方法。
本部分适用于铝及铝合金中磷含量的测定。测定范围为：0.000 1%～0.05%。
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