Chinese Standard: GB/T 9288-2019

Gold jewellery alloys—Determination of gold—Cupellation method(fire assay)

本标准规定了采用灰吹法（火试金法）测定金合金首饰及相关制品中金含量的方法。
<br/> 本标准适用于金含量在333.0‰～999.5‰的各种金合金首饰及相关制品（不含铂、铑等不溶于硝酸的成分）金含量的测定。
<br/> 本标准被GB 11887指定为金合金首饰及相关制品中金含量分析的仲裁方法。

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