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ISO 11426:2014

Jewellery -- Determination of gold in gold jewellery alloys -- Cupellation method (fire assay)

General information

Withdrawn from 11.03.2021
ICS Groups
39.060 Jewellery
Directives or regulations
None

Standard history

Status
Date
Type
Name
11.03.2021
Main
ISO 11426:2021
26.11.2014
Main
ISO 11426:2014
Main
ISO 11426:1997
ISO 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.
ISO 11426:2014 is intended to be used as the recommended method for the determination of fineness in alloys covered by ISO 9202.

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Standard monitoring
English (PDF 641 KB)

Related products

Main

ISO 11426:2021

Jewellery and precious metals — Determination of gold — Cupellation method (fire assay)
Newest version Valid from 11.03.2021
Main + amendment

EVS-EN 1811:2011+A1:2015

Reference test method for release of nickel from all post assemblies which are inserted into pierced parts of the human body and articles intended to come into direct and prolonged contact with the skin
Withdrawn from 01.03.2023
Main

EVS-EN 1811:2023

Reference test method for release of nickel from all post assemblies which are inserted into pierced parts of the human body and articles intended to come into direct and prolonged contact with the skin
Newest version Valid from 01.03.2023
Main + amendment

EVS-EN 12472:2006+A1:2009

Method for the simulation of wear and corrosion for the detection of nickel release from coated items CONSOLIDATED TEXT
Withdrawn from 02.10.2020

Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English