Test method of precious metal alloys—Determination of copper content for gold, palladium and silver alloys—Complexometric return titration using thiourea releasing EDTA
全国有色金属标准化技术委员会
本部分规定了金、钯、银合金中铜含量的测定方法。
本部分适用于AuAgCu、AuAgCuGd、AuCuNiZn、AuCuNiZnMn、PdAgCu、PdAgCuAuPtZn、AgCu、AgCuV、AgCuNiAl合金中铜含量的测定。测定范围(质量分数)：4％~35％。
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