Reference number
Ïã¸ÛÁùºÏ²Ê¿ª½± 11426:2014
Ïã¸ÛÁùºÏ²Ê¿ª½± 11426:2014
Jewellery — Determination of gold in gold jewellery alloys — Cupellation method (fire assay)
Edition 3
2014-12
Withdrawn
Ïã¸ÛÁùºÏ²Ê¿ª½± 11426:2014
57647
Withdrawn (Edition 3, 2014)

Abstract

Ïã¸ÛÁùºÏ²Ê¿ª½± 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.

Ïã¸ÛÁùºÏ²Ê¿ª½± 11426:2014 is intended to be used as the recommended method for the determination of fineness in alloys covered by Ïã¸ÛÁùºÏ²Ê¿ª½± 9202.

General information

  •  : Withdrawn
     : 2014-12
     : 2014-12
    : Withdrawal of International Standard [95.99]
  •  : 3
     : 7
  • Ïã¸ÛÁùºÏ²Ê¿ª½±/TC 174
    39.060 
  • RSS updates

Got a question?

Check out our Help and Support

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)