SIST EN ISO 14268:2023

Leather - Physical and mechanical tests - Determination of water vapour permeability (ISO 14268:2023)

This document describes a method for determining the water vapour permeability of leather and provides alternative methods of sample preparation and for the measurement procedure.

Leder - Physikalische und mechanische Prüfungen - Bestimmung der Wasserdampfdurchlässigkeit (ISO 14268:2023)

Dieses Dokument legt ein Verfahren zur Bestimmung der Wasserdampfdurchlässigkeit von Leder fest und gibt alternative Verfahren für die Probenvorbereitung und das Messverfahren an.

Cuir - Essais physiques et mécaniques - Détermination de la perméabilité à la vapeur d'eau (ISO 14268:2023)

Le présent document décrit une méthode de détermination de la perméabilité du cuir à la vapeur d'eau et fournit d'autres méthodes pour la préparation de l'échantillon et pour le mode opératoire de mesure.

Usnje - Fizikalni in mehanski preskusi - Ugotavljanje prepustnosti vodne pare (ISO 14268:2023)

Ta dokument opisuje metodo za ugotavljanje prepustnosti vodne pare za usnje in določa alternativne metode priprave vzorcev ter za merilni postopek.

General Information

• Status: Published
• Public Enquiry End Date: 30-Nov-2021
• Publication Date: 28-Feb-2023
• ICS: 59.140.30 - Leather and furs
• Technical Committee: IUSN - Leather
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 23-Feb-2023
• Due Date: 30-Apr-2023
• Completion Date: 01-Mar-2023
• Ref Project: EN ISO 14268:2023 - Leather - Physical and mechanical tests - Determination of water vapour permeability (ISO 14268:2023)

Relations

• Revised: SIST EN ISO 14268:2013 - Leather - Physical and mechanical tests - Determination of water vapour permeability (ISO 14268:2012)
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 14268:2023
01-april-2023
Usnje - Fizikalni in mehanski preskusi - Ugotavljanje prepustnosti vodne pare (ISO
14268:2023)
Leather - Physical and mechanical tests - Determination of water vapour permeability
(ISO 14268:2023)
Leder - Physikalische und mechanische Prüfungen - Bestimmung der
Wasserdampfdurchlässigkeit (ISO 14268:2023)
Cuir - Essais physiques et mécaniques - Détermination de la perméabilité à la vapeur
d'eau (ISO 14268:2023)
Ta slovenski standard je istoveten z: EN ISO 14268:2023
ICS:
59.140.30 Usnje in krzno Leather and furs
SIST EN ISO 14268:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 14268:2023

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SIST EN ISO 14268:2023


EN ISO 14268
EUROPEAN STANDARD

NORME EUROPÉENNE

February 2023
EUROPÄISCHE NORM
ICS 59.140.30 Supersedes EN ISO 14268:2012
English Version

Leather - Physical and mechanical tests - Determination of
water vapour permeability (ISO 14268:2023)
Cuir - Essais physiques et mécaniques - Détermination Leder - Physikalische und mechanische Prüfungen -
de la perméabilité à la vapeur d'eau (ISO 14268:2023) Bestimmung der Wasserdampfdurchlässigkeit (ISO
14268:2023)
This European Standard was approved by CEN on 10 February 2023.

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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14268:2023 E
worldwide for CEN national Members.

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SIST EN ISO 14268:2023
EN ISO 14268:2023 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 14268:2023
EN ISO 14268:2023 (E)
European foreword
This document (EN ISO 14268:2023) has been prepared by Technical Committee IULTCS "International
Union of Leather Technologists and Chemists Societies" in collaboration with Technical Committee
CEN/TC 289 “Leather” the secretariat of which is held by UNI.
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 August 2023, and conflicting national standards shall
be withdrawn at the latest by August 2023.
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.
This document supersedes EN ISO 14268:2012.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. 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 14268:2023 has been approved by CEN as EN ISO 14268:2023 without any modification.


3

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SIST EN ISO 14268:2023

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SIST EN ISO 14268:2023
INTERNATIONAL ISO
STANDARD 14268
IULTCS
IUP 15
Third edition
2023-01
Leather — Physical and mechanical
tests — Determination of water
vapour permeability
Cuir — Essais physiques et mécaniques — Détermination de la
perméabilité à la vapeur d'eau
Reference numbers
ISO 14268:2023(E)
IULTCS/IUP 15:2023(E)
© ISO 2023

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SIST EN ISO 14268:2023
ISO 14268:2023(E)
IULTCS/IUP 15:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2023 – All rights reserved

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SIST EN ISO 14268:2023
ISO 14268:2023(E)
IULTCS/IUP 15:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
6 Sampling and sample preparation . 3
7 Procedure A – Standard test method .3
8 Procedure B – Accelerated test method . 4
9 Expression of results . 4
10 Test report . 5
Annex A (informative) Sources of apparatus . 6
Annex B (informative) Water vapour number. 7
Bibliography . 8
iii
© ISO 2023 – All rights reserved

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SIST EN ISO 14268:2023
ISO 14268:2023(E)
IULTCS/IUP 15:2023(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 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).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
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 Physical Tests Commission of the International Union of Leather
Technologists and Chemists Societies (IUP Commission, IULTCS), in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, in accordance with
the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 14268:2012), which has been technically
revised.
The main changes are as follows:
— Introduction added;
— new Clause 3, Terms and definitions, added;
— new Clause 8 added for the new Procedure B – Accelerated test method.
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 2023 – All rights reserved

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SIST EN ISO 14268:2023
ISO 14268:2023(E)
IULTCS/IUP 15:2023(E)
Introduction
This document describes two methods (Procedure A and Procedure B) for water vapour permeability
determination:
— The method in accordance with Procedure A is the standard test method for water vapour
permeability determination and is used in any case of discrepancy or dispute.
— The method in accordance with Procedure B is equivalent to the method described in ISO 20344
and can be applied for an accelerated routine control in production processes and/or if requested
by the client.
v
© ISO 2023 – All rights reserved

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SIST EN ISO 14268:2023

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SIST EN ISO 14268:2023
ISO 14268:2023(E)
INTERNATIONAL STAND
...

SLOVENSKI STANDARD
oSIST prEN ISO 14268:2021
01-november-2021
Usnje - Fizikalni in mehanski preskusi - Ugotavljanje prepustnosti vodne pare
(ISO/DIS 14268:2021)
Leather - Physical and mechanical tests - Determination of water vapour permeability
(ISO/DIS 14268:2021)
Leder - Physikalische und mechanische Prüfungen - Bestimmung der
Wasserdampfdurchlässigkeit (ISO/DIS 14268:2021)
Cuir - Essais physiques et mécaniques - Détermination de la perméabilité à la vapeur
d'eau (ISO/DIS 14268:2021)
Ta slovenski standard je istoveten z: prEN ISO 14268
ICS:
59.140.30 Usnje in krzno Leather and furs
oSIST prEN ISO 14268:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 14268:2021

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oSIST prEN ISO 14268:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 14268
IULTCS
IUP 15
IULTCS Secretariat: ISO
Voting begins on: Voting terminates on:
2021-09-30 2021-12-23
Leather — Physical and mechanical tests — Determination
of water vapour permeability
Cuir — Essais physiques et mécaniques — Détermination de la perméabilité à la vapeur d'eau
ICS: 59.140.30
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference numbers
NATIONAL REGULATIONS.
ISO/DIS 14268:2021(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
IULTCS/IUP 15:2021(E)
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2021

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oSIST prEN ISO 14268:2021
ISO/DIS 14268:2021(E)
IULTCS/IUP 15:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

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oSIST prEN ISO 14268:2021
ISO/DIS 14268:2021(E)
IULTCS/IUP 15:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
6 Sampling and sample preparation . 3
7 Procedure A – Standard test method . 3
8 Procedure B – Accelerated test method . 4
9 Expression of results . 4
10 Test report . 5
Annex A (informative) Sources of apparatus . 6
Annex B (informative) Water vapour number . 7
Bibliography . 8
© ISO 2021 – All rights reserved iii

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oSIST prEN ISO 14268:2021
ISO/DIS 14268:2021(E)
IULTCS/IUP 15:2021(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 14268 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 289, Leather, in collaboration with the Physical Tests Commission of the International Union
of Leather Technologists and Chemists Societies (IUP Commission, IULTCS), in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
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.
The first edition was based on IUP 15 originally published in J. Soc. Leather Trades Chemists, 44, p. 502,
(1960) and declared an official method of the IULTCS in 1961. An updated version was published in
J. Soc. Leather Tech. Chem., 82, p. 234, (1998) and a further revision published in J. Soc. Leather Tech.
Chem., 84, p. 353, (2000) and reconfirmed as an official method in March 2001.
This third edition cancels and replaces the second edition (ISO 14268:2012), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— Introduction included;
— additional clause 3, Terms and definitions;
— additional clause 8 for the new Procedure B – Accelerated test method.
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 2021 – All rights reserved

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oSIST prEN ISO 14268:2021
ISO/DIS 14268:2021(E)
IULTCS/IUP 15:2021(E)
Introduction
ISO 14268 describes two methods (Procedure A and Procedure B) for the water vapour permeability
determination.
— The method in accordance with Procedure A is the standard test method for water vapour
permeability determination and to be used in any case of discrepancy or dispute.
[1]
— The method in accordance with Procedure B is equivalent to the method described in ISO 20344
and can be applied for an accelerated routine control in production processes and/or if requested
by the client.
© ISO 2021 – All rights reserved v

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oSIST prEN ISO 14268:2021

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oSIST prEN ISO 14268:2021
ISO/DIS 14268:2021(E)
DRAFT INTERNATIONAL STANDARD
IULTCS/IUP 15:2021(E)
Leather — Physical and mechanical tests — Determination
of water vapour permeability
1 Scope
This International Standard describes a method for determining the water vapour permeability of
leather and provides alternative methods of sample preparation and for the measurement procedure.
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 2418, Leather — Chemical, physical and mechanical and fastness tests — Sampling location
ISO 2419, Leather — Physical and mechanical tests — Sample preparation and conditioning
ISO 2589, Leather — Physical and mechanical tests — Determination of thickness
ISO 5402-1, Leather — Determination of flex resistance — Part 1: Flexometer method
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological 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
The test piece is clamped over the opening of a container which contains a solid desiccant and is placed
in a strong current of air in a standard atmosphere. The air inside the contain
...