Norm

NEN-EN-ISO 11426:2016 en

Sieraden - Bepaling van het goudgehalte in goudlegeringen voor sieraden - Cupelleermethode (gloeiproef)

52,53

Over deze norm

Status Definitief
Aantal pagina's 7
Gepubliceerd op 01-10-2016
Taal Engels
NEN-EN-ISO 11426 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. This International Standard is intended to be used as the recommended method for the determination of fineness in alloys covered by ISO 9202.

Details

ICS-code 39.060
Nederlandse titel Sieraden - Bepaling van het goudgehalte in goudlegeringen voor sieraden - Cupelleermethode (gloeiproef)
Engelse titel Jewellery - Determination of gold in gold jewellery alloys - Cupellation method (fire assay)
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