ISO 11426:2014规定了一种用于金首饰合金中金的测定的方法（火测试）。合金的金含量应优选在333至999份/千（？）之间。 该程序专门适用于含有银，铜和锌的金合金。镍和/或钯存在于所谓的白金合金中以及含有990或更多份（¯）金的合金中的一些修饰。 ISO 11426:2014旨在用作ISO 9202涵盖的合金测定细度的推荐方法

ISO 11426:2014 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. ISO 11426:2014 is intended to be used as the recommended method for the determination of fineness in alloys covered by ISO 9202.