Leather - Identification of leather with microscopy (ISO 17131:2020)

This document specifies a method using microscopy to identify leather and distinguish it from other materials. The method is not applicable for identifying specific leathers (e.g. sheep leather).

Leder - Identifizierung von Leder per Mikroskopie (ISO 17131:2020)

Dieses Dokument legt ein mikroskopisches Verfahren fest, um Leder zu identifizieren und um Leder von anderen Materialien zu unterscheiden. Dieses Verfahren ist nicht zur Identifikation bestimmter Leder (z. B. Schafsleder) anwendbar.

Cuir - Identification du cuir par microscopie (ISO 17131:2020)

Le présent document spécifie une méthode de microscopie permettant d'identifier le cuir et de le distinguer des autres matériaux. Cette méthode ne s'applique pas à l'identification de cuirs spécifiques (par exemple, cuir de mouton).

Usnje - Identifikacija usnja z mikroskopijo (ISO 17131:2020)

General Information

Status
Published
Publication Date
14-Apr-2020
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
15-Apr-2020
Completion Date
15-Apr-2020

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SLOVENSKI STANDARD
SIST EN ISO 17131:2020
01-junij-2020
Nadomešča:
SIST EN ISO 17131:2012
Usnje - Identifikacija usnja z mikroskopijo (ISO 17131:2020)
Leather - Identification of leather with microscopy (ISO 17131:2020)
Leder - Identifizierung von Leder per Mikroskopie (ISO 17131:2020)
Cuir - Identification du cuir par microscopie (ISO 17131:2020)
Ta slovenski standard je istoveten z: EN ISO 17131:2020
ICS:
59.140.30 Usnje in krzno Leather and furs
SIST EN ISO 17131:2020 en,fr,de

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

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SIST EN ISO 17131:2020
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SIST EN ISO 17131:2020
EN ISO 17131
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2020
EUROPÄISCHE NORM
ICS 59.140.30 Supersedes EN ISO 17131:2012
English Version
Leather - Identification of leather with microscopy (ISO
17131:2020)

Cuir - Identification du cuir par microscopie (ISO Leder - Identifizierung von Leder per Mikroskopie (ISO

17131:2020) 17131:2020)
This European Standard was approved by CEN on 25 March 2020.

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, 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

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17131:2020 E

worldwide for CEN national Members.
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SIST EN ISO 17131:2020
EN ISO 17131:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 17131:2020
EN ISO 17131:2020 (E)
European foreword

This document (EN ISO 17131:2020) 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 October 2020, and conflicting national standards shall

be withdrawn at the latest by October 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.

This document supersedes EN ISO 17131:2012.

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 17131:2020 has been approved by CEN as EN ISO 17131:2020 without any modification.

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SIST EN ISO 17131:2020
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SIST EN ISO 17131:2020
INTERNATIONAL ISO
STANDARD 17131
IULTCS - IUP 56
Second edition
2020-04
Leather — Identification of leather
with microscopy
Cuir — Identification du cuir par microscopie
Reference numbers
ISO 17131:2020(E)
IULTCS - IUP 56:2020(E)
ISO 2020
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SIST EN ISO 17131:2020
ISO 17131:2020(E)
IULTCS - IUP 56:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
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SIST EN ISO 17131:2020
ISO 17131:2020(E)
IULTCS - IUP 56:2020(E)
Contents  Page

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

Introduction ..................................................................................................................................................................................................................................v

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

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

3  Terms and definitions ..................................................................................................................................................................................... 1

4  Principle ........................................................................................................................................................................................................................ 1

5  Apparatus and materials.............................................................................................................................................................................. 1

6  Procedure..................................................................................................................................................................................................................... 2

7  Test report ................................................................................................................................................................................................................... 2

Annex A (normative) Scanning electron microscope cross-section photographs ................................................4

Annex B (normative) Light microscope cross-section photographs ................................................................................10

Annex C (normative) Phase-contrast optical-microscope cross-section photographs .................................15

© ISO 2020 – All rights reserved iii
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SIST EN ISO 17131:2020
ISO 17131:2020(E)
IULTCS - IUP 56:2020(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.

This document was prepared by the European Committee for Standardization (CEN) Technical

Committee CEN/TC 289, Leather, the secretariat of which is held by UNI, 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 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 sampling and the testing of leather. ISO

recognizes IULTCS as an international standardizing body for the
...

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