EN ISO 22764:2026

Jewellery and precious metals - Fineness of solders used with precious metal jewellery alloys (ISO 22764:2020)

This document specifies the precious metal content in solders suitable for use in the production of jewellery made of precious metal alloys.

Schmuck und Edelmetalle - Feingehalt von Loten, die für Edelmetalllegierungen verwendet werden (ISO 22764:2020)

Dieses Dokument legt den Feingehalt von Edelmetallen in Loten fest, die für die Herstellung von Schmuck aus Edelmetalllegierungen geeignet sind.

Joaillerie, bijouterie et métaux précieux - Titre des brasures utilisées pour les alliages de métaux précieux pour les articles de joaillerie et de bijouterie (ISO 22764:2020)

Nakit in plemenite kovine - Čistost spajkal, ki se uporabljajo pri zlitinah za nakit iz plemenitih kovin (ISO 22764:2020)

Ta dokument določa vsebnost plemenitih kovin v spajkah, primernih za uporabo pri izdelavi nakita iz zlitin plemenitih kovin.

General Information

• Status: Published
• Publication Date: 17-Mar-2026
• ICS: 39.060 - Jewellery
• Technical Committee: CEN/TC 410 - Project Committee - Consumer confidence and nomenclature in the diamond industry
• Drafting Committee: CEN/TC 410 - Project Committee - Consumer confidence and nomenclature in the diamond industry
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 18-Mar-2026
• Due Date: 09-Jan-2028
• Completion Date: 18-Mar-2026
• Ref Project: SIST EN ISO 22764:2026 - Jewellery and precious metals - Fineness of solders used with precious metal jewellery alloys (ISO 22764:2020)

Relations

• Refers: ISO 11427:2024 - Jewellery and precious metals — Determination of silver — Potentiometry using potassium bromide
• Effective Date: 15-Apr-2026
• Refers: ISO 11494:2019 - Jewellery and precious metals — Determination of platinum in platinum alloys — ICP-OES method using an internal standard element
• Effective Date: 15-Apr-2026
• Refers: ISO 11495:2019 - Jewellery and precious metals — Determination of palladium in palladium alloys — ICP-OES method using an internal standard element
• Effective Date: 15-Apr-2026
• Refers: ISO 15096:2020 - Jewellery and precious metals — Determination of high purity silver — Difference method using ICP-OES
• Effective Date: 15-Apr-2026
• Refers: ISO 11426:2021 - Jewellery and precious metals — Determination of gold — Cupellation method (fire assay)
• Effective Date: 15-Apr-2026
• Refers: ISO 11210:2023 - Jewellery and precious metals — Determination of platinum — Gravimetry using ammonium chloride
• Effective Date: 15-Apr-2026
• Refers: ISO 11490:2023 - Jewellery and precious metals — Determination of palladium — Gravimetry using dimethylglyoxime
• Effective Date: 15-Apr-2026
• Refers: ISO 15093:2020 - Jewellery and precious metals — Determination of high purity gold, platinum and palladium — Difference method using ICP-OES
• Effective Date: 15-Apr-2026
• Refers: ISO 13756:2024 - Jewellery and precious metals — Determination of silver — Potentiometry using sodium chloride or potassium chloride
• Effective Date: 15-Apr-2026

Overview

EN ISO 22764:2026 - "Jewellery and precious metals - Fineness of solders used with precious metal jewellery alloys" - is an international standard approved by CEN and based on ISO 22764:2020. It defines the required precious metal content in solders used during the production and assembly of jewellery made from precious metal alloys. The goal of this standard is to support product integrity and transparent quality within the jewellery industry by establishing consistent requirements regarding solder fineness for gold, platinum, palladium, and silver jewellery.

Key Topics

• Scope: This standard applies to solders used with precious metal jewellery alloys, specifying the minimum allowable content of precious metals in the solder to maintain overall product quality.
• Fineness Requirements: Ensures that the use of solder does not reduce the measured fineness of precious metal jewellery below its declared value.
• Precious Metal Categories: Addresses specific requirements for solders in gold, platinum, palladium, and silver jewellery, facilitating compliance across different materials.
• Terms and Definitions: Clarifies key concepts, such as 'fineness', 'precious metal', 'precious metal alloy', and 'solder', to prevent ambiguity in manufacturing and testing.
• Reference Methods: Directs users to established methods for determining fineness, helping standardize testing and verification across the industry.
• Exceptions and Special Cases: Outlines certain exceptions, such as for red gold alloys and jewellery chains, where different minimum fineness requirements apply.

Applications

This standard is highly relevant to:

• Jewellery Manufacturers: Ensures the responsible selection and use of solders compatible with precious metal jewellery, enabling compliance with legal and quality benchmarks.
• Quality Assurance & Testing Laboratories: Provides a clear basis for testing, verifying, and certifying the fineness of soldered precious metal jewellery using standardized analytical methods.
• Retailers, Wholesalers, and Importers: Helps supply chain stakeholders to demonstrate due diligence and product conformity by referencing recognized international standards for solder quality.
• Custom and Craft Jewellery Makers: Offers guidance for small-scale and bespoke production to ensure product authenticity and compliance with consumer expectations and regulatory requirements.
• Market Surveillance Authorities: Supports regulatory assessment and market surveillance activities for precious metal goods offered within the European market and internationally.

Related Standards

EN ISO 22764:2026 makes reference to essential standards used for the determination of precious metal content and fineness in jewellery, including:

• ISO 11210: Determination of platinum in platinum jewellery alloys.
• ISO 11426: Determination of gold in gold jewellery alloys (Cupellation method).
• ISO 11427 / ISO 13756: Determination of silver in silver jewellery alloys.
• ISO 11490 / ISO 11495: Determination of palladium in palladium jewellery alloys.
• ISO 11494: ICP-OES method for platinum alloys.
• ISO 15093 / ISO 15096: Difference methods using ICP-OES for gold, platinum, palladium, and silver.
• ISO 9202: General requirements for the fineness of precious metal alloys.
• ISO 8654: Defines the colors of gold alloys, relevant for certain soldering exceptions.

Practical Value

By adhering to EN ISO 22764:2026, organisations in the jewellery and precious metals sector can:

• Guarantee accurate fineness labeling for precious metal goods.
• Uphold consumer confidence and brand reputation.
• Streamline international trade through uniform quality expectations.
• Reduce the risk of regulatory non-compliance and associated penalties.

EN ISO 22764:2026 provides the jewellery industry, testing laboratories, and regulatory authorities with a harmonized framework for maintaining the integrity of precious metal jewellery through controlled use of compliant solders.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2026
Nakit in plemenite kovine - Čistost spajkal, ki se uporabljajo pri zlitinah za nakit iz
plemenitih kovin (ISO 22764:2020)
Jewellery and precious metals - Fineness of solders used with precious metal jewellery
alloys (ISO 22764:2020)
Schmuck und Edelmetalle - Feingehalt von Loten, die für Edelmetalllegierungen
verwendet werden (ISO 22764:2020)
Joaillerie, bijouterie et métaux précieux - Titre des brasures utilisées pour les alliages de
métaux précieux pour les articles de joaillerie et de bijouterie (ISO 22764:2020)
Ta slovenski standard je istoveten z: EN ISO 22764:2026
ICS:
39.060 Nakit Jewellery
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 22764
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2026
EUROPÄISCHE NORM
ICS 39.060
English Version
Jewellery and precious metals - Fineness of solders used
with precious metal jewellery alloys (ISO 22764:2020)
Joaillerie, bijouterie et métaux précieux - Titre des Schmuck und Edelmetalle - Feingehalt von Loten, die
brasures utilisées pour les alliages de métaux précieux für Edelmetalllegierungen verwendet werden (ISO
pour les articles de joaillerie et de bijouterie (ISO 22764:2020)
22764:2020)
This European Standard was approved by CEN on 13 March 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 22764:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 22764:2020 has been prepared by Technical Committee ISO/TC 174 "Jewellery and
precious metals” of the International Organization for Standardization (ISO) and has been taken over as
secretariat of which is held by DIN.
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 September 2026, and conflicting national standards
shall be withdrawn at the latest by September 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.
Any feedback and questions on this document should be directed to the users’ national standards body.
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 22764:2020 has been approved by CEN as EN ISO 22764:2026 without any modification.

INTERNATIONAL ISO
STANDARD 22764
First edition
2020-01
Jewellery and precious metals —
Fineness of solders used with precious
metal jewellery alloys
Joaillerie bijouterie et métaux précieux — Titre des brasures utilisées
pour les alliages de métaux précieux pour les articles de joaillerie et
de bijouterie
Reference number
ISO 22764:2020(E)
©
ISO 2020
ISO 22764:2020(E)
© ISO 2020
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
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Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 22764:2020(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements with regard to fineness . 2
4.1 Mean fineness . 2
4.2 Gold jewellery . 2
4.3 Platinum jewel
...