板状灰皿在国外是先进的火试金法黄金化验仪器。欧美先进黄金检测机构以及香港、澳门、台湾、新加坡等贵金属检测机构都使用这种板状灰皿。板状灰皿主要成份是镁砂。
灰皿一种多孔杯，通常用骨类制成，在检验中把贵重金属从低劣物质如铝中分离出来。
A porous cup often made of bone ash used in assaying to separate precious metals from base elements such as lead.
灰皿：一种多孔杯，通常用骨类制成，在检验中把贵重金属从低劣物质如铝中分离出来。
Cupel: a porous cup often made of bone ash used in assaying to separate precious metals from base elements such as lead.
分别使用镁砂灰皿和骨灰灰皿，样品含Au量的分析结果与理论含Au量的偏差均在国家标准的允差范围内；
Respectively using magnesium oxide and bone ash cupels, the result deviation of gold content in the samples is within the allowable deviation of the national standards.
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