UNI EN 31426 : 1997
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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DETERMINAZIONE DELL'ORO NELLE LEGHE D'ORO PER GIOIELLERIA - METODO DELLA COPPELLAZIONE (SAGGIO DEL FUOCO)
30-11-2000
12-01-2013
Cooperating organizations
National foreword
Foreword
1. Scope
2. Normative reference
3. Principle
4. Reagents
5. Apparatus
6. Sampling
7. Procedure
8. Expression of results
9. Notes on procedure
10. Test report
Annex
ZA. (normative) Normative references to international
publications with their relevant European
publications
National annexes
NA. (informative) Committees responsible
NB. (informative) Cross-references
Specifies a cuppellation method (fire assay) for the determination of gold in gold jewellery alloys. Applies specifically to gold alloys incorporating silver, copper and zinc. Coverage includes reagents, procedure, and notes on procedure.
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| BS EN 31426:1994 | Identical |
| UNE-EN 31426:1996 | Identical |
| I.S. EN 31426:1994 | Identical |
| EN 31426 : 1994 | Identical |
| DIN EN 31426:1994-09 | Identical |
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