Methods for chemical analysis of aluminium and aluminium alloys—Part 1:Determination of mercury content
全国有色金属标准化技术委员会(SAC/TC 243)
GB/T 20975的本部分规定了铝及铝合金中汞含量的测定方法。
本部分适用于铝及铝合金中汞含量的测定，铝及铝合金中所有共存元素均不干扰汞的测定。方法一测定范围为：＞0.000 1%～0.010%；方法二测定范围为：0.000 001%～0.000 1%。
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