Leather - Tests for colour fastness - Colour fastness to perspiration (ISO 11641:2012)

ISO 11641:2012 specifies a method for determining the colour fastness to perspiration of leather of all kinds at all stages of processing. It applies particularly to gloving, clothing and lining leathers, as well as leather for the uppers of unlined shoes.
The method uses an artificial perspiration solution to simulate the action of human perspiration. Since perspiration varies widely from one individual to the next, it is not possible to design a method with universal validity, but the alkaline artificial perspiration solution specified in ISO 11641:2012 will give results corresponding to those with natural perspiration in most cases.

Leder - Farbechtheitsprüfungen - Farbechtheit gegen Schweiß (ISO 11641:2012)

Diese Internationale Norm legt ein Verfahren zur Bestimmung der Farbechtheit aller Arten von Leder in allen Verarbeitungsstufen gegenüber Schweiß fest. Hauptsächlich findet sie bei Handschuh , Bekleidungs- und Futterleder sowie Leder als Obermaterial von ungefüttertem Schuhwerk Anwendung.
Zur Simulation der Wirkung von menschlichem Schweiß wird bei dem Verfahren eine künstliche Schweißlösung verwendet. Weil sich der Schweiß von Individuum zu Individuum unterscheidet, ist es nicht möglich, ein Verfahren von allgemeiner Gültigkeit zu entwickeln, die in dieser Internationalen Norm festgelegte künstliche alkalische Schweißlösung führt jedoch zu Ergebnissen, die in den meisten Fällen den Ergebnissen mit natürlichem Schweiß entsprechen.
ANMERKUNG   Im Allgemeinen ist frisch produzierter menschlicher Schweiß schwach sauer. Mikroorganismen verursachen dann eine Veränderung, der pH Wert wird gewöhnlich schwach basisch (pH Wert 7,5 bis 8,5). Alkalischer Schweiß hat eine wesentlich größere Auswirkung auf die Farbe des Leders als saurer Schweiß. Demzufolge wird für farbiges Leder eine alkalische Schweißlösung verwendet, um die in der Praxis anzutreffenden schärfsten Bedingungen zu simulieren.

Cuir - Essais de solidité des coloris - Solidité des coloris à la sueur (ISO 11641:2012)

L'ISO 11641:2012 spécifie une méthode permettant de déterminer la solidité des coloris à la sueur sur les cuirs de toutes catégories, à toutes les phases du traitement. Elle s'applique particulièrement aux cuirs destinés à la fabrication des gants, des vêtements et des parements, ainsi qu'aux cuirs pour les tiges de chaussures sans doublure.
La méthode utilise une solution de sueur artificielle afin de simuler l'action de la transpiration humaine. Attendu que la sueur varie largement d'une personne à une autre, il n'est pas possible de concevoir une méthode ayant une validité universelle, mais la sueur artificielle alcaline spécifiée dans l'ISO 11641:2012 donne des résultats correspondant dans la plupart des cas à ceux obtenus avec la sueur naturelle.

Usnje - Preskušanje obstojnosti barve - Obstojnost barve proti znoju (ISO 11641:2012)

Ta mednarodni standard določa metodo za določevanje obstojnosti barve proti znoju za usnje vseh vrst in pri vseh stopnjah obdelave. Uporablja se predvsem za usnjene rokavice, oblačila in podloge ter usnje za zgornji del nepodloženih čevljev. Metoda uporablja postopek umetnega znojenja, ki simulira znojenje človeka. Ker se intenzivnost znojenja posameznikov razlikuje, ni mogoče zasnovati metode z univerzalno veljavnostjo, vendar alkalna raztopina za umetno znojenje, podana v tem mednarodnem standardu, daje rezultate, ki v večini primerov ustrezajo rezultatom, pridobljenim z naravnim znojenjem.

General Information

Status
Published
Publication Date
14-Nov-2012
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
15-Nov-2012
Completion Date
15-Nov-2012

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SLOVENSKI STANDARD
SIST EN ISO 11641:2013
01-november-2013
1DGRPHãþD
SIST EN ISO 11641:2004
Usnje - Preskušanje obstojnosti barve - Obstojnost barve proti znoju (ISO
11641:2012)

Leather - Tests for colour fastness - Colour fastness to perspiration (ISO 11641:2012)

Leder - Farbechtheitsprüfungen - Farbechtheit gegen Schweiß (ISO 11641:2012)

Cuir - Essais de solidité des coloris - Solidité des coloris à la sueur (ISO 11641:2012)

Ta slovenski standard je istoveten z: EN ISO 11641:2012
ICS:
59.140.30 Usnje in krzno Leather and furs
SIST EN ISO 11641:2013 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11641:2013
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SIST EN ISO 11641:2013
EUROPEAN STANDARD
EN ISO 11641
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2012
ICS 59.140.30 Supersedes EN ISO 11641:2003
English Version
Leather - Tests for colour fastness - Colour fastness to
perspiration (ISO 11641:2012)

Cuir - Essais de solidité des coloris - Solidité des coloris à Leder - Farbechtheitsprüfungen - Farbechtheit gegen

la sueur (ISO 11641:2012) Schweiß (ISO 11641:2012)
This European Standard was approved by CEN on 14 November 2012.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United

Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11641:2012: E

worldwide for CEN national Members.
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SIST EN ISO 11641:2013
EN ISO 11641:2012 (E)
Contents Page

Foreword ..............................................................................................................................................................3

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SIST EN ISO 11641:2013
EN ISO 11641:2012 (E)
Foreword

This document (EN ISO 11641:2012) 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.

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 May 2013, and conflicting national standards shall be withdrawn at the

latest by May 2013.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 11641:2003.

According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following

countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech

Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,

Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Endorsement notice

The text of ISO 11641:2012 has been approved by CEN as a EN ISO 11641:2012 without any modification.

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SIST EN ISO 11641:2013
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SIST EN ISO 11641:2013
INTERNATIONAL ISO
STANDARD 11641
IULTCS/IUF
426
Second edition
2012-11-15
Leather — Tests for colour fastness —
Colour fastness to perspiration
Cuir — Essais de solidité des coloris — Solidité des coloris à la sueur
Reference number
ISO 11641:2012(E)
IULTCS/IUF 426:2012(E)
ISO 2012
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SIST EN ISO 11641:2013
ISO 11641:2012(E)
IULTCS/IUF 426:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or

ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved
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SIST EN ISO 11641:2013
ISO 11641:2012(E)
IULTCS/IUF 426:2012(E)
Contents Page

Foreword ............................................................................................................................................................ iv

1  Scope ...................................................................................................................................................... 1

2  Normative references ............................................................................................................................ 1

3  Principle ................................................................................................................................................. 2

4  Apparatus and materials....................................................................................................................... 2

5  Test specimens ...................................................................................................................................... 4

6  Procedure ............................................................................................................................................... 4

7  Evaluation .............................................................................................................................................. 5

8  Precision ................................................................................................................................................ 5

9  Test report .............................................................................................................................................. 5

Annex A (informative) Commercial sources for apparatus and materials .................................................... 6

Bibliography ........................................................................................................................................................ 7

© ISO 2012 – All rights reserved iii
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SIST EN ISO 11641:2013
ISO 11641:2012(E)
IULTCS/IUF 426:2012(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.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. 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.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 11641 was prepared by the European Committee for Standardization (CEN) Technical Committee

CEN/TC 289, Leather, in collaboration with the Fastness Tests Commission of the International Union of

Leather Technologists and Chemists Societies (IUF Commission, IULTCS), in accordance with the Agreement

on technical cooperation between ISO and CEN (Vienna Agreement).

The first edition of ISO 11641 was based on IUF 426 published in J. Soc. Leather Tech. Chem., 71, pp. 22-24

(1987), and declared an official method of the IULTCS in October 1989.

This second edition of ISO 11641 cancels and replaces the first edition (ISO 11641:1993). This new version is

an update of the procedures and includes provision for an acidic artificial perspiration solution (4.6), the option

of instrumental grey scale measurement (7.2) and precision information (8).

IULTCS, originally formed in 1897, is a worldwide 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.

iv © ISO 2012 – All rights reserved
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SIST EN ISO 11641:2013
ISO 11641:2012(E)
INTERNATIONAL STANDARD
IULTCS/IUF 426:2012(E)
Leather — Tests for colour fastness — Colour fastness to
perspiration
1 Scope

This International Standard specifies a method for determining the colour fastness to perspiration of leather of

all kinds at all stages of processing. It applies particularly to gloving, clothing and lining leathers, as well as

leather for the uppers of unlined shoes.

The method uses an artificial perspiration solution to simulate the action of human perspiration. Since

perspiration varies widely from one individual to the next, it is not possible to design a method with universal

validity, but the alkaline artificial perspiration solution specified in this International Standard will give results

corresponding to those with natural perspiration in most cases.

NOTE In general, human perspiration is weakly acidic when freshly produced. Micro-organisms then cause it to

change, the pH usually becoming weakly alkaline (pH 7,5 to 8,5). Alkaline perspiration has a considerably greater effect

on the colour of leather than has acid perspiration. Therefore, for coloured leather, an alkaline perspiration solution is used

to simulate the most demanding conditions encountered in practice.
2 Normative references

The following referenced documents are indispensable for the application 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-A01, Textiles — Tests for colour fastness — Part A01: General principles of testing

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 105-E04, Textiles — Tests for colour fastness — Part E04: Colour fastness to perspiration

ISO 105-F01, Textiles — Tests for colour fastness — Part F01: Specification for wool adjacent fabric

ISO 105-F02, Textiles — Tests for colour fastness — Part F02: Specification for cotton and viscose adjacent

fabrics

ISO 105-F03, Textiles — Tests for colour fastness — Part F03: Specification for polyamide adjacent fabric

ISO 105-F04, Textiles — Tests for colour fastness — Part F04: Specification for polyester adjacent fabric

© ISO 2012 – All rights reserved 1
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SIST EN ISO 11641:2013
ISO 11641:2012(E)
IULTCS/IUF 426:2012(E)
ISO 105-F05, Textiles — Tests for c
...

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