Leather — Wet blue goat skins — Specification

ISO 5431:2013 specifies requirements, methods of sampling and methods of test for wet blue leather produced from goat skins tanned without hair and with the use of basic chromium sulfate as the primary tanning agent.

Cuir — Peaux de caprins à l'état "bleu humide" — Spécifications

General Information

Status
Withdrawn
Publication Date
30-Jul-2013
Current Stage
9599 - Withdrawal of International Standard
Completion Date
18-Nov-2022
Ref Project

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ISO 5431:2013 - Leather -- Wet blue goat skins -- Specification
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INTERNATIONAL ISO
STANDARD 5431
Second edition
2013-08-01
Leather — Wet blue goat skins —
Specification
Cuir — Peaux de caprins à l’état “bleu humide” — Spécifications
Reference number
ISO 5431:2013(E)
ISO 2013
---------------------- Page: 1 ----------------------
ISO 5431:2013(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2013

All rights reserved. Unless otherwise specified, 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
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Published in Switzerland
ii © ISO 2013 – All rights reserved
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ISO 5431:2013(E)
Contents Page

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

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

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

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

4 Requirements .......................................................................................................................................................................................................... 1

4.1 Raw material ............................................................................................................................................................................................. 1

4.2 Tanning .......................................................................................................................................................................................................... 1

4.3 Fungicidal additives ............................................................................................................................................................................ 2

4.4 Presentation .............................................................................................................................................................................................. 2

4.5 Shrinkage temperature .................................................................................................................................................................... 2

4.6 Chemical requirements.................................................................................................................................................................... 2

5 Sampling ........................................................................................................................................................................................................................ 2

5.1 Sampling for routine testing ........................................................................................................................................................ 2

5.2 Sampling in case of dispute .......................................................................................................................................................... 2

5.3 Preparation of samples .................................................................................................................................................................... 3

6 Method of test .......................................................................................................................................................................................................... 3

6.1 Visual tests .................................................................................................................................................................................................. 3

6.2 Shrinkage temperature .................................................................................................................................................................... 3

6.3 Volatile matter ......................................................................................................................................................................................... 3

6.4 pH of the water extract .................................................................................................................................................................... 3

6.5 Effectiveness of the fungicide ..................................................................................................................................................... 3

7 Packaging and Marking ................................................................................................................................................................................. 3

7.1 Packaging ..................................................................................................................................................................................................... 3

7.2 Marking ......................................................................................................................................................................................................... 3

© ISO 2013 – All rights reserved iii
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ISO 5431:2013(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. www.iso.org/directives

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

pat
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