EN ISO 11641:2003

SLOVENSKI STANDARD
01-maj-2004
Usnje – Preskušanje obstojnosti barve – Obstojnost barve proti znoju (ISO
11641:1993)
Leather - Tests for colour fastness - Colour fastness to perspiration (ISO 11641:1993)
Leder - Farbechtheitspru*fungen - Farbechtheit gegen Schweiß (ISO 11641:2002)
Cuir - Essai de solidité des teintures - Solidité des teintures a la sueur (ISO 11641:1993)
Ta slovenski standard je istoveten z: EN ISO 11641:2003
ICS:
59.140.30 Usnje in krzno Leather and furs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 11641
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2003
ICS 59.140.30
English version
Leather - Tests for colour fastness - Colour fastness to
perspiration (ISO 11641:1993)
Cuir - Essai de solidité des teintures - Solidité des teintures Leder - Farbechtheitsprüfungen - Farbechtheit gegen
à la sueur (ISO 11641:1993) Schweiß (ISO 11641:2002)
This European Standard was approved by CEN on 10 July 2003.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11641:2003 E
worldwide for CEN national Members.

CORRECTED  2003-09-24
Foreword
This document (EN ISO 11641:2003) has been prepared by Technical Committee CEN/TC 289
"Leather", the secretariat of which is held by UNI, in collaboration with the International Union of
Leather Technologists and Chemists Societies (IULTCS).
It is based on Method IUF 426 of the International Union of Leather Technologists and Chemists
Societies.
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 January 2004, and conflicting national
standards shall be withdrawn at the latest by January 2004.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and
the United Kingdom.
Endorsement notice
The text of ISO 11641:1993 has been approved by CEN as EN ISO 11641:2003 without any
modifications.
NOTE Normative references to International Standards are listed in annex ZA (normative).
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications, indicated
by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 105-A02 1993 Textiles - Tests for colour fastness - EN 20105-A02 1994
Part A02: Grey scale for assessing
change in colour
ISO 105-A03 1993 Textiles - Tests of colour fastness - EN 20105-A03 1994
Part A03: Grey scale for assessing
staining
ISO 2419 2002 Leather - Physical and mechanical EN ISO 2419 2002
tests - Sample preparation and
conditioning
ISO 3696 1987 Water for analytical laboratory use - EN ISO 3696 1995
Specification and test methods
INTERNATIONAL
ISO
STANDARD
IULTCSNJF
First edition
1993-12-15
Leather -
Tests for colour fastness -
Colour fastness to Perspiration
Cuir - Essais de solid& des teintures
- Solidit6 des teintures a Ia sueur
Reference number
ISO 11641:1993 (E)
IULTCSJUF
426, 1993 Edition
ISO 11641:1993(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. Esch member body interested in a subject for
which a technical committee has been established has the right to be re-
presented 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
(1 EC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 11641 was prepared by the Fastness Tests
Commission of the International Union of Leather Technologists and
Chemists Societies (IUF Commission, IULTCS). lt is based on IUF 426
published in J. Sec. Leather Tech. Chem., 71, pp. 22-24 (1987), and de-
clared an official method of the IULTCS in October 1989.
Annexes A and B of this International Standard are for information only.
0 ISO 1993
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopying and
microfilm, without Permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-I 211 Geneve 20 l Switzerland
Printed in Switzerland
ii
ISO 11641:1993(E)
INTERNATIONAL STANDARD 0 ISO
- Tests for colour fastness - Colour fastness
Leather
to Perspiration
Members of IEC and ISO maintain registers of cur-
1 Scope
rently valid International Standards.
This International Standard specifies a method for
ISO 105-AO2:1993, Textiles - Tests for colour fast-
determining the colour fastness to Perspiration of
ness - Part AO2 Grey scale for assessing Change in
leather of all kinds at all stages of processing, but it
colour.
applies particularly to gloving, clothing and lining
leathers, as well as leather for the uppers of unlined
ISO 105-A03:1993, Textiles - Tests for colour fast-
shoes.
- Part A03: Grey scale for assessing staining.
ness
NOTE 1 During the test, the adjacent fabric used may
ISO 105-F10:1989, Textiles - Tests for colour fast-
become stained and the colour of the leather may Change.
ness - Part F70: Specification for adjacent fabrk.
Multifibre.
The method uses an artificial Perspiration Solution to
simulate the action of human Perspiration. Since
ISO 2419:1972, Leather - Conditioning of test pieces
Perspiration varies widely from one individual to the
for physical’ tests.
next, it is not possible to design a method with uni-
versal validity, but the alkaline artificial Perspiration
ISO 3696: 1987, Wa ter for analytical laboratory use -
Solution specified below will give results correspond-
Specifica tion and test methods.
ing to those with natura1 Perspiration in most cases.
NOTE 2 In general, human Perspiration is weakly acidic
when freshly produced.
...