Jewellery and precious metals - Fineness of precious metal alloys (ISO 9202:2026)

This document specifies a range of fineness of precious metal alloys recommended for use in the field of jewellery.
NOTE            There is a possibility that national legal requirements for the designation, marking and stamping of finished articles exist in the respective countries.

Schmuck und Edelmetalle - Feingehalt von Edelmetalllegierungen (ISO 9202:2026)

Joaillerie, bijouterie et métaux précieux - Titre des alliages de métaux précieux (ISO 9202:2026)

Le présent document spécifie une gamme de titre pour les alliages de métaux précieux d’usage recommandé en joaillerie-bijouterie.
NOTE            Il peut exister des exigences légales nationales relatives à la désignation, au marquage et au poinçonnage des articles finis dans les pays en question.

Nakit in plemenite kovine - Čistost zlitin plemenitih kovin (ISO 9202:2026)

Ta dokument določa razpon finoče zlitin plemenitih kovin, ki so priporočene za uporabo na področju nakita.
OPOMBA            Obstaja možnost, da v posameznih državah obstajajo nacionalne pravne zahteve za označevanje, markiranje in žigosanje končnih izdelkov.

General Information

Status
Published
Publication Date
26-May-2026
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
27-May-2026
Completion Date
27-May-2026

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Relations

Effective Date
06-Nov-2024
Effective Date
01-Jul-2026
Effective Date
01-Jul-2026
Effective Date
01-Jul-2026
Effective Date
01-Jul-2026
Effective Date
01-Jul-2026
Effective Date
01-Jul-2026
Effective Date
01-Jul-2026
Effective Date
01-Jul-2026
Effective Date
01-Jul-2026
Effective Date
01-Jul-2026
Effective Date
01-Jul-2026
Effective Date
12-Feb-2026

Overview

EN ISO 9202:2026 - Jewellery and Precious Metals - Fineness of Precious Metal Alloys specifies recommended fineness standards for precious metal alloys in jewellery. Developed by CEN and aligned with ISO 9202:2026, this international standard defines the minimum precious metal content required, expressed in parts per thousand (‰), for various alloy types. The document supports consistency and quality in the jewelry industry while recognizing that separate national legal requirements for marking and stamping may exist.

Key Topics

  • Definition of Fineness
    The standard establishes that fineness refers to the minimum content of the named precious metal (such as gold, platinum, palladium, or silver) in an alloy, measured per thousand by weight.

  • Recommended Fineness Values
    EN ISO 9202:2026 lists a range of minimum acceptable fineness values for each type of precious metal alloy. The document ensures that no minus tolerance is allowed-guaranteeing strict quality control.

  • Accepted Analytical Methods
    Reliable analytic methods for determining fineness are referenced, including various ISO standards covering gravimetry, potentiometry, ICP-OES, and SPARK-OES techniques.

  • International Context and National Requirements
    While the standard is internationally harmonized, it notes that countries may have additional laws regarding designation, marking, and stamping of finished jewellery articles.

Applications

EN ISO 9202:2026 plays a vital role in numerous areas of the jewellery and precious metals industry:

  • Jewellery Manufacturing
    Producers and designers of fine jewellery rely on the standard to ensure their alloys meet globally recognized purity benchmarks, facilitating fair trade and consumer trust.

  • Quality Assurance and Testing
    Laboratories use the referenced analytical methods to rigorously test precious metal content, supporting transparent claims about fineness on certified products.

  • Market Compliance
    By following EN ISO 9202:2026, manufacturers and distributors can confidently meet industry expectations and more easily adapt to legal requirements in different markets, supporting international trade.

  • Consumer Protection
    Defined fineness grades help maintain consumer confidence by assuring consistent quality and authenticity of gold, silver, platinum, and palladium jewellery.

Related Standards

EN ISO 9202:2026 references and aligns with a robust set of international and European standards, including:

  • ISO 11210: Platinum determination by gravimetry.
  • ISO 11426: Gold assessment using the cupellation method (fire assay).
  • ISO 11427, ISO 13756: Silver determination by potentiometry.
  • ISO 11490, ISO 11495: Palladium analysis by gravimetry and ICP-OES.
  • ISO 11494: Determination of platinum using ICP-OES.
  • ISO 15093, ISO 18214: High-purity gold, platinum, and palladium determination using difference methods.
  • ISO 15096: High-purity silver assessment by difference methods.

These referenced standards detail the analytic methodologies needed to accurately measure the fineness of precious metal alloys, ensuring reproducibility and market transparency.


By standardizing fineness values and analytical protocols, EN ISO 9202:2026 serves as a foundation for quality, trust, and regulatory compliance in the global jewellery and precious metals industry.

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Frequently Asked Questions

EN ISO 9202:2026 is a standard published by the European Committee for Standardization (CEN). Its full title is "Jewellery and precious metals - Fineness of precious metal alloys (ISO 9202:2026)". This standard covers: This document specifies a range of fineness of precious metal alloys recommended for use in the field of jewellery. NOTE            There is a possibility that national legal requirements for the designation, marking and stamping of finished articles exist in the respective countries.

This document specifies a range of fineness of precious metal alloys recommended for use in the field of jewellery. NOTE            There is a possibility that national legal requirements for the designation, marking and stamping of finished articles exist in the respective countries.

EN ISO 9202:2026 is classified under the following ICS (International Classification for Standards) categories: 39.060 - Jewellery. The ICS classification helps identify the subject area and facilitates finding related standards.

EN ISO 9202:2026 has the following relationships with other standards: It is inter standard links to EN ISO 9202:2019, ISO 11494:2019, ISO 11490:2023, ISO 13756:2024, ISO 11495:2019, ISO 11426:2021, ISO 11427:2024, ISO 15093:2020, ISO 19376-1:2025, ISO 18214:2024, ISO 15096:2020, ISO 11210:2023, ISO 9202:2026. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN ISO 9202:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-julij-2026
Nakit in plemenite kovine - Čistine zlitin plemenitih kovin (ISO 9202:2026)
Jewellery and precious metals - Fineness of precious metal alloys (ISO 9202:2026)
Schmuck und Edelmetalle - Feingehalt von Edelmetalllegierungen (ISO 9202:2026)
Joaillerie, bijouterie et métaux précieux - Titre des alliages de métaux précieux (ISO
9202:2026)
Ta slovenski standard je istoveten z: EN ISO 9202:2026
ICS:
39.060 Nakit Jewellery
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 9202
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2026
EUROPÄISCHE NORM
ICS 39.060 Supersedes EN ISO 9202:2019
English Version
Jewellery and precious metals - Fineness of precious metal
alloys (ISO 9202:2026)
Joaillerie, bijouterie et métaux précieux - Titre des Schmuck und Edelmetalle - Feingehalt von
alliages de métaux précieux (ISO 9202:2026) Edelmetalllegierungen (ISO 9202:2026)
This European Standard was approved by CEN on 18 May 2026.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9202:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 9202:2026) has been prepared by Technical Committee ISO/TC 174 "Jewellery
and precious metals" in collaboration with CCMC.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2026, and conflicting national standards
shall be withdrawn at the latest by November 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 9202:2019.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 9202:2026 has been approved by CEN as EN ISO 9202:2026 without any modification.

International
Standard
ISO 9202
Fourth edition
Jewellery and precious metals —
2026-05
Fineness of precious metal alloys
Joaillerie, bijouterie et métaux précieux — Titre des alliages de
métaux précieux
Reference number
ISO 9202:2026(en) © ISO 2026
ISO 9202:2026(en)
© ISO 2026
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
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Email: copyright@iso.org
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Published in Switzerland
ii
ISO 9202:2026(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Analytical methods for determining fineness .
...