DIN EN ISO 11426
Jewellery - Determination of gold in gold jewellery alloys - Cupellation method (fire assay) (ISO 11426:2014, Corrected version 2014-12-15)
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| Organization: | DIN |
| Publication Date: | 1 December 2016 |
| Status: | active |
| Page Count: | 14 |
| ICS Code (Jewellery): | 39.060 |
scope:
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 International Standard is intended to be used as the recommended method for the determination of fineness in alloys covered by ISO 9202.
Document History
June 1, 2021
Jewellery and precious metals - Determination of gold - Cupellation method (fire assay) (ISO 11426:2021)
A description is not available for this item.
September 1, 2020
Jewellery and precious metals - Determination of gold - Cupellation method (fire assay) (ISO/DIS 11426:2020); German and English version prEN ISO 11426:2020
A description is not available for this item.
DIN EN ISO 11426
December 1, 2016
Jewellery - Determination of gold in gold jewellery alloys - Cupellation method (fire assay) (ISO 11426:2014, Corrected version 2014-12-15)
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...
June 1, 2016
Jewellery - Determination of gold in gold jewellery alloys - Cupellation method (fire assay) (ISO 11426:2014); German and English version prEN ISO 11426:2016
A description is not available for this item.
October 1, 1999
Determination of gold in gold jewellery alloys - Cupellation method (fire assay) (ISO 11426:1997)
A description is not available for this item.