UNE-EN ISO 11426:2017
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Jewellery - Determination of gold in gold jewellery alloys - Cupellation method (fire assay) (ISO 11426:2014)
Hardcopy , PDF
Spanish, Castilian, English
01-03-2017
30-06-2021
This International Standard specifies a cupellation method (fire assay) for the determination of gold ingold jewellery alloys. The gold content of the alloys should preferably lie between 333 and 999 parts perthousand (0 ).The procedure is applicable specifically to gold alloys incorporating silver, copper, and zinc. Somemodifications 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 (0 ) of gold.This International Standard is intended to be used as the recommended method for the determinationof fineness in alloys covered by ISO 9202.
| Committee |
CTN 93
|
| DevelopmentNote |
Supersedes UNE EN 31426. (03/2000)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Superseded
|
| Standards | Relationship |
| NEN EN ISO 11426 : 1999 | Identical |
| NS EN ISO 11426 : 1998 | Identical |
| ISO 11426:2014 | Identical |
| DIN EN ISO 11426:2016-12 | Identical |
| EN ISO 11426:2016 | Identical |
| ONORM EN ISO 11426 : 2017 | Identical |
| NBN EN ISO 11426 : 1999 | Identical |
| NF EN ISO 11426 : 1999 | Identical |
| I.S. EN ISO 11426:2016 | Identical |
| BS EN ISO 11426:2016 | Identical |
| ISO 9202:2014 | Jewellery — Fineness of precious metal alloys |
| ISO 11596:2008 | Jewellery — Sampling of precious metal alloys for and in jewellery and associated products |
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