Methods for chemical analysis of aluminium and aluminium alloys—Part 37:Determination of niobium content
全国有色金属标准化技术委员会(SAC/TC 243)
GB/T 20975的本部分规定了纸上色层分离重量法和电感耦合等离子体原子发射光谱法测定铝及铝合金中铌含量。
本部分适用于铝及铝合金中铌含量的仲裁测定。纸上色层分离重量法的测定范围：15.00%~90.00%；电感耦合等离子体原子发射光谱法的测定范围：0.050%~15.00%。
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