SIST EN ISO 9202:2026

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
• Public Enquiry End Date: 30-Mar-2025
• Publication Date: 18-Jun-2026
• ICS: 39.060 - Jewellery
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 10-Jun-2026
• Due Date: 15-Aug-2026
• Completion Date: 19-Jun-2026
• Ref Project: EN ISO 9202:2026 - Jewellery and precious metals - Fineness of precious metal alloys (ISO 9202:2026)

Relations

• Revises: SIST EN ISO 9202:2019 - Jewellery and precious metals - Fineness of precious metal alloys (ISO 9202:2019)
• Effective Date: 06-Nov-2024

Overview

SIST EN ISO 9202:2026 is an international standard specifying the recommended range of fineness for precious metal alloys used in jewellery. Developed by the Slovenian Institute for Standardization (SIST) and aligned with ISO 9202:2026, this standard provides uniform criteria for determining and designating the precious metal content (fineness) in gold, silver, platinum, and palladium alloys. By referencing fineness in parts per thousand (‰) by weight, this document supports global harmonization and facilitates the reliable designation of jewellery and other articles made from precious metals.

It is important to note that individual countries may have specific legal requirements for labelling, marking, or stamping precious metal items. This standard operates alongside such regulations.

Key Topics

• Fineness Definition: Fineness refers to the minimum content of named precious metals in alloys, measured in parts per thousand by weight.
• Range of Fineness Values: Provides recommended fineness values for gold, platinum, palladium, and silver alloys, supporting standardized industry practices.
• Analytical Methods: Lists recognized ISO methods for accurately determining fineness, including gravimetric, potentiometric, and spectrometric analysis.
• Marking Guidance: Highlights the relevance of national legal requirements for marking and designation of precious metal jewellery.
• Standardization Benefits: Supports consistency, transparency, and comparability in the international precious metals trade.
• Alignment with Legal Frameworks: Encourages compliance with both the standard and applicable national or regional regulations regarding jewellery and precious metals.

Applications

The primary applications of SIST EN ISO 9202:2026 include:

• Jewellery Manufacturing: Assists manufacturers in selecting appropriate alloy compositions and ensures correct fineness marking, aiding in consumer trust and regulatory compliance.
• Quality Control: Enables laboratories and quality assurance teams to use validated analytical methods for fineness determination, reducing disputes and ensuring product reliability.
• Trade and Certification: Facilitates cross-border trade by providing a clear, internationally recognized system for comparing and certifying the precious metal content in jewellery items.
• Market Transparency: Helps retailers, assay offices, and purchasers by providing clear standards for product labelling and documentation.
• Consumer Protection: Sets minimum fineness criteria, ensuring customers consistently receive jewellery products with guaranteed precious metal content.

Related Standards

SIST EN ISO 9202:2026 is closely connected with several other international standards addressing testing methods and quality assurance in precious metals, including:

• ISO 11210: Gravimetric determination of platinum.
• ISO 11426: Fire assay (cupellation) for gold.
• ISO 11427: Potentiometry for silver.
• ISO 11490: Gravimetry for palladium.
• ISO 11494: ICP-OES method for platinum in alloys.
• ISO 11495: ICP-OES method for palladium in alloys.
• ISO 13756: Potentiometry using sodium or potassium chloride for silver.
• ISO 15093: Difference method using ICP-OES for high-purity gold, platinum, and palladium.
• ISO 15096: Difference method using ICP-OES for high-purity silver.
• ISO 18214: Difference method using SPARK-OES for high-purity precious metals.

By referencing these ISO methods, SIST EN ISO 9202:2026 provides a robust framework for the fineness determination and authentication of precious metal alloys in the jewellery industry.

Keywords: jewellery standards, precious metal alloys, fineness determination, SIST EN ISO 9202:2026, gold alloy, silver alloy, platinum alloy, palladium alloy, ISO jewellery, precious metal marking, standardization in jewellery.

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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
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 .
...