标准编号：ISO 11426:2014
中文名称：珠宝 金和金珠宝合金的测定 火吹法（火试验法）
英文名称：Jewellery — Determination of gold in gold jewellery alloys — Cupellation method (fire assay)
发布日期：2014-12
标准范围
This International Standard specifies a cupellation method (fire assay) for the determination of gold in gold jewellery alloys. The gold content of the alloys should preferably lie between 333 and 999 parts per thousand (‰).The procedure is applicable specifically to gold alloys incorporating silver, copper and zinc. Some modifications are indicated where nickel and/or palladium are present in the so-called white gold alloys, as well as for alloys containing 990 or more parts per thousand (‰) of gold.This method is intended to be used as the reference method for the determination of fineness in alloys covered by ISO 9202.
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