ISO 11426
Determination of Gold in Gold Jewellery Alloys - Cupellation Method (Fire Assay) First Edition; (CEN EN 31426:1994)
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| Organization: | ISO |
| Publication Date: | 1 January 1993 |
| Status: | inactive |
| Page Count: | 7 |
| ICS Code (Jewellery): | 39.060 |
Document History
March 1, 2021
Jewellery and precious metals — Determination of gold — Cupellation method (fire assay)
This document specifies a cupellation method (fire assay) for the determination of gold on a material considered homogeneous. The gold content of the sample lies preferably between 100 and 999,5...
December 15, 2014
Jewellery - Determination of gold in gold jewellery alloys - Cupellation method (fire assay)
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...
December 15, 2014
Jewellery - Determination of gold in gold jewellery alloys - Cupellation method (fire assay)
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...
December 1, 1997
Determination of Gold in Gold Jewellery Alloys - Cupellation Method (Fire Assay)
A description is not available for this item.
ISO 11426
January 1, 1993
Determination of Gold in Gold Jewellery Alloys - Cupellation Method (Fire Assay) First Edition; (CEN EN 31426:1994)
A description is not available for this item.