oSIST prEN ISO 17228:2025
(Main)Leather - Tests for colour fastness - Change in colour with accelerated ageing (ISO/DIS 17228:2025)
Leather - Tests for colour fastness - Change in colour with accelerated ageing (ISO/DIS 17228:2025)
ISO 17228:2015 specifies various ageing procedures to obtain an indication of the changes that could occur when leather is exposed to a certain environment for a prolonged time. Over time, the surface colour of leather and the leather itself change due to ageing and to the action of the surroundings on the leather. The test conditions to be used depend on the type of leather and its intended use.
This procedure can also be used to age specimens for the test of dimensional change according to ISO 17130.
Leder - Farbechtheitsprüfungen - Farbänderung durch beschleunigtes Altern (ISO/DIS 17228:2025)
Cuir - Essais de solidité des coloris - Changement de couleur avec vieillissement accéléré (ISO/DIS 17228:2025)
L'ISO 17228:2015 spécifie des méthodes d'essai de vieillissement ayant pour but de décrire les dégradations susceptibles de se produire lorsque le cuir est longtemps exposé à un certain milieu. Au fil du temps, la couleur de surface du cuir et le cuir lui-même s'altèrent en raison de leur vieillissement et de l'influence du milieu environnant sur le cuir. Les conditions d'essai préconisées dépendent du type de cuir et de l'usage auquel il est destiné.
Ce mode opératoire peut également être utilisé pour le vieillissement d'échantillons dans le cadre de l'essai de variations dimensionnelles selon l'ISO 17130.
Usnje - Preskušanje obstojnosti barve - Sprememba barve pri preskusu pospešenega staranja (ISO/DIS 17228:2025)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2025
Usnje - Preskušanje obstojnosti barve - Sprememba barve pri preskusu
pospešenega staranja (ISO/DIS 17228:2025)
Leather - Tests for colour fastness - Change in colour with accelerated ageing (ISO/DIS
17228:2025)
Leder - Farbechtheitsprüfungen - Farbänderung durch beschleunigtes Altern (ISO/DIS
17228:2025)
Cuir - Essais de solidité des coloris - Changement de couleur avec vieillissement
accéléré (ISO/DIS 17228:2025)
Ta slovenski standard je istoveten z: prEN ISO 17228
ICS:
59.140.30 Usnje in krzno Leather and furs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
International
Standard
ISO/DIS 17228
IUF 412
IULTCS
Leather — Tests for colour
Secretariat: ISO
fastness — Change in colour with
accelerated ageing
Voting begins on:
2025-10-09
Cuir — Essais de solidité des coloris — Changement de couleur
Voting terminates on:
avec vieillissement accéléré
2026-01-01
ICS: 59.140.30
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
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USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
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POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 17228:2025(en)
IUF 412:2025(en)
DRAFT
ISO/DIS 17228:2025(en)
International
Standard
ISO/DIS 17228
IUF 412
IULTCS
Leather — Tests for colour
Secretariat: ISO
fastness — Change in colour with
accelerated ageing
Voting begins on:
Cuir — Essais de solidité des coloris — Changement de couleur
Voting terminates on:
avec vieillissement accéléré
ICS: 59.140.30
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
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Reference number
Published in Switzerland ISO/DIS 17228:2025(en)
IUF 412:2025(en)
ii
ISO/DIS 17228:2025(en)
IUF 412:2025(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Test piece preparation . 2
7 Ageing by heat alone . 3
7.1 Principle .3
7.2 Procedure .3
8 Ageing by heat and elevated humidity . 4
8.1 Principle .4
8.2 Procedure .4
9 Cyclic variation in heat and elevated humidity . 5
9.1 Principle .5
9.2 Procedure .5
10 Test report . 7
Annex A (informative) Evaluation of yellowing towards instrumental colour measurement . 8
Bibliography . 9
iii
ISO/DIS 17228:2025(en)
IUF 412:2025(en)
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 develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
IULTCS, originally formed in 1897, is a world-wide organization of professional leather societies to further
the advancement of leather science and technology. IULTCS has three Commissions, which are responsible
for establishing international methods for the sampling and testing of leather. ISO recognizes IULTCS as an
international standardizing body for the preparation of test methods for leather.
This document was prepared by the Fastness Tests Commission of the International Union of Leather
Technologists and Chemists Societies (IUF Commission, IULTCS) in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, the secretariat of which
is held by UNI, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
It is based on IUF 412 published in J. Soc. Leather Tech. Chem., 86 pp. 325-331, 2002, and declared an official
method of the IULTCS in May 2003.
This third edition cancels and replaces the second edition (ISO 17228:2015) which has been technically
revised.
The main changes are as follows:
— The method was updated to the latest versions of ISO 2418, ISO 2419, ISO 7906, added reference ISO 22700
for instrumental measurements of colour differences and yellowing calculations.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
ISO/DIS 17228:2025(en)
DRAFT International Standard
IUF 412:2025(en)
Leather — Tests for colour fastness — Change in colour with
accelerated ageing
1 Scope
This International Standard specifies various ageing procedures to obtain an indication of the changes that
could occur when leather is exposed to a certain environment for a prolonged time. Over time, the surface
colour of leather and the leather itself change due to ageing and to the action of the surroundings on the
leather. The test conditions to be used depend on the type of leather and its intended use.
This procedure can also be used to age specimens for the test of dimensional change according to ISO 17130.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour
ISO 105-A03, Textiles — Tests for colour fastness — Part A03: Grey scale for assessing staining
ISO 105-A04, Textiles — Tests for colour fastness — Part A04: Method for the instrumental assessment of the
degree of staining of adjacent fabrics
ISO 105-A05, Textiles — Tests for colour fastness — Part A05: Instrumental assessment of change in colour for
determination of grey scale rating
ISO 2418:2023, Leather — Chemical, physical, mechanical and fastness tests — Position and preparation of
specimens for testing
ISO 2419:2024, Leather — Physical and mechanical tests — Specimen and test piece conditioning
ISO 7906:2022, Leather — Tests for colour fastness — General principles of testing
ISO 17130, Leather — Physical and mechanical tests — Determination of dimensional change
ISO 22700, Leather — Measuring the colour and colour difference of finished leather
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Principle
A test piece of leather is exposed to at least one of the three following conditions:
— heat (see Clause 7);
ISO/DIS 17228:2025(en)
IUF 412:2025(en)
— heat and humidity (see Clause 8);
— cycles of different temperature and humidity (see Clause 9).
One or more of these procedures may take place simultaneously. The change in colour of the test piece is
assessed wi
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