DS/EN ISO 11426

Jewellery – Determination of gold in gold jewellery alloys – Cupellation method (fire assay) (ISO 11426:2014)

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Organization: DS
Publication Date: 3 May 2017
Status: active
Page Count: 20
ICS Code (Jewellery): 39.060
scope:

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.

Document History

DS/EN ISO 11426
May 3, 2017
Jewellery – Determination of gold in gold jewellery alloys – Cupellation method (fire assay) (ISO 11426:2014)
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...
March 30, 1999
Determination of gold in gold jewellery alloys - Cupellation method (fire assay)
This 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...
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