Defines a cupellation method (fire assay) determining gold in gold jewellery alloys. The content should lie between 333 and 999 parts per thousand (0/00). Applicable to specify gold alloys incorporating zinc, copper and silver. Modifications are indicated where nickel and/or palladium are present in so-called white gold alloys, as well as for alloys containing 990 or more parts per thousand (0/00) of gold.

Supersedes NBN EN 31426. (06/2007)

ONORM EN ISO 11426:2017 - Identical

EN ISO 11426:2016 - Similar

NS EN ISO 11426 Ed. 2 (1999) - Identical

SN EN ISO 11426:1999 - Identical

BS EN ISO 11426:1999 - Identical

UNI EN ISO 11426:2000 - Identical

UNE EN ISO 11426:1999 - Identical

SS EN ISO 11426 Ed. 1 (1999) - Identical

ISO 11426:1997 - Identical

NEN EN ISO 11426:1999 - Identical

SS EN ISO 11426 Ed. 2 (2016) - Identical

BS EN ISO 11426:2016 - Identical

NEN EN ISO 11426:2016 - Identical

UNE EN ISO 11426:2017 - Identical

NS EN ISO 11426:2016 - Identical

DIN EN ISO 11426 (1999-10) - Identical

ONORM EN ISO 11426:1999 - Identical

NF EN ISO 11426:1999 - Identical

I.S. EN ISO 11426:1999 - Identical