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| GB/T 9288-1998 Analyse method of gold content in jewellery (English Version) |
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Detail of GB/T 9288-1998
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Introduction of GB/T 9288-1998
本标准规定了首饰含金量的分析方法，粗知样品（样品中不含铂、铑等不溶于硝酸的物质）成分含量在33.30%~99.95%的各种金和K金首饰含金量的测定。本标准为首饰含金量分析的仲裁方法。
Contents of GB/T 9288-1998