EN ISO 8654:2018/A1:2019

Jewellery - Colours of gold alloys - Definition, range of colours and designation - Amendment 1 (ISO 8654:2018/Amd 1:2019)

Schmuck - Farben von Goldlegierungen - Bezeichnung, Farbenreihe und Kennzeichnung - Änderung 1 (ISO 8654:2018/Amd 1:2019)

Joaillerie, bijouterie - Couleurs des alliages d'or - Définition, gamme de couleurs et désignation - Amendement 1 (ISO 8654:2018/Amd 1:2019)

Nakit - Barve zlatih zlitin - Definicija, barvni odtenki in označevanje - Dopolnilo A1 (ISO 8654:2018/Amd 1:2019)

General Information

• Status: Published
• Publication Date: 17-Dec-2019
• Withdrawal Date: 29-Jun-2020
• ICS: 39.060 - Jewellery
• Technical Committee: CEN/SS M21 - Precious metals - Applications in jewellery and associated products
• Drafting Committee: CEN/SS M21 - Precious metals - Applications in jewellery and associated products
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 18-Dec-2019
• Completion Date: 18-Dec-2019
• Ref Project: SIST EN ISO 8654:2018/A1:2020 - Jewellery - Colours of gold alloys - Definition, range of colours and designation - Amendment 1 (ISO 8654:2018/Amd 1:2019)

Relations

• Amends: EN ISO 8654:2018 - Jewellery - Colours of gold alloys - Definition, range of colours and designation (ISO 8654:2018)
• Effective Date: 26-Sep-2018

Overview

The EN ISO 8654:2018/A1:2019 amendment updates the international standard for Jewellery - Colours of gold alloys, focusing on the precise definition, range of colours, and designation protocols for gold alloys used in jewellery. This amendment, issued by the European Committee for Standardization (CEN), aligns with ISO 8654:2018/Amd 1:2019 and extends the colour measurement methodology to include the 10° standard observer, enhancing accuracy and industry applicability.

Gold alloy colours are vital in jewellery manufacturing and evaluation, impacting quality control, product consistency, and consumer expectations. This standard amendment ensures harmonized colour measurement techniques and nomenclature, promoting international trade and quality assurance in precious metal jewellery.

Key Topics

• Colour Definition and Range
  Specifies the colour parameters for gold alloys, defining nominal values and tolerance limits to ensure consistent appearance.

• Colour Measurement Methods
  Incorporates measurement protocols using two standard observers:

  • The existing 2° standard observer
  • Newly added 10° standard observer setup, widely used for colour evaluation in the industry.

• Spectrophotometer Setup
  Describes the technical setup for colour measurement instruments, with specific focus on the parameters for the 10° standard observer, ensuring precise chromaticity data.

• Chromaticity Coordinates and Colour Values
  Provides detailed tables for nominal values and tolerance ranges for:

  • xyY colour space
  • Lab* colour space
  • LCh° colour space
    These are crucial for consistent and replicable measurement of gold alloy colours.

• Designation of Gold Alloy Colours
  Standardizes the naming and classification of various gold alloy colours to avoid ambiguity in commercial and manufacturing contexts.

Applications

• Jewellery Manufacturing
  Enables manufacturers to monitor and control the exact colour of gold alloys, contributing to product uniformity and customer satisfaction.

• Quality Assurance
  Provides guidelines for inspection and certification laboratories to assess compliance of gold alloy colours with market requirements.

• Research and Development
  Supports metallurgists and material scientists in developing new gold alloys with specific colour characteristics.

• Retail and Consumer Communication
  Assists in the accurate description and designation of jewellery items, aiding marketing and consumer transparency.

• International Trade Compliance
  Harmonizes colour standards across member countries to reduce trade barriers and enhance product compatibility globally.

Related Standards

• ISO 8654:2018 – Jewellery - Colours of gold alloys - Definition, range of colours and designation (Base Standard)
• EN ISO 8654:2018 – European adoption of the ISO jewellery colour standard
• ISO/IEC Directives, Part 1 and 2 – Standards development and editorial guidelines
• Other ISO standards on precious metals and jewellery for material specifications and testing methods

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This amendment reaffirms the commitment to international harmonization of jewellery standards, focusing on scientifically defined colour metrics for gold alloys. It benefits manufacturers, certifiers, and consumers by adding a broader colour measurement scope with the 10° standard observer, facilitating enhanced accuracy in colour evaluation and classification across the jewellery industry.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2020
Nakit - Barve zlatih zlitin - Definicija, barvni odtenki in označevanje - Dopolnilo A1
(ISO 8654:2018/Amd 1:2019)
Jewellery - Colours of gold alloys - Definition, range of colours and designation -
Amendment 1 (ISO 8654:2018/Amd 1:2019)
Schmuck - Farben von Goldlegierungen - Bezeichnung, Farbenreihe und
Kennzeichnung - Änderung 1 (ISO 8654:2018/Amd 1:2019)
Joaillerie, bijouterie - Couleurs des alliages d'or - Définition, gamme de couleurs et
désignation - Amendement 1 (ISO 8654:2018/Amd 1:2019)
Ta slovenski standard je istoveten z: EN ISO 8654:2018/A1:2019
ICS:
39.060 Nakit Jewellery
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 8654:2018/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2019
EUROPÄISCHE NORM
ICS 39.060
English Version
Jewellery - Colours of gold alloys - Definition, range of
colours and designation - Amendment 1 (ISO
8654:2018/Amd 1:2019)
Joaillerie, bijouterie - Couleurs des alliages d'or - Schmuck - Farben von Goldlegierungen - Bezeichnung,
Définition, gamme de couleurs et désignation - Farbenreihe und Kennzeichnung - Änderung 1 (ISO
Amendement 1 (ISO 8654:2018/Amd 1:2019) 8654:2018/Amd 1:2019)
This amendment A1 modifies the European Standard EN ISO 8654:2018; it was approved by CEN on 26 August 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant 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 amendment 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, Turkey 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8654:2018/A1:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 8654:2018/A1:2019) 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 June 2020, and conflicting national standards shall be
withdrawn at the latest by June 2020.
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.
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, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 8654:2018/Amd 1:2019 has been approved by CEN as EN ISO 8654:2018/A1:2019
without any modification.
INTERNATIONAL ISO
STANDARD 8654
Second edition
2018-02-08
AMENDMENT 1
2019-12
Jewellery — Colours of gold alloys
— Definition, range of colours and
designation
AMENDMENT 1
Joaillerie, bijouterie — Couleurs des alliages d'or — Définition,
gamme de couleurs et désignation
AMENDEMENT 1
Reference number
ISO 8654:2018/Amd.1:2019(E)
©
ISO 2019
ISO 8654:2018/Amd.1:2019(E)
© ISO 2019
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 2019 – All rights reserved

ISO 8654:2018/Amd.1:2019(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to d
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