ISO 22284:2020

INTERNATIONAL ISO
STANDARD 22284
First edition
2020-05
Leather — Raw skins — Guidelines for
preservation of goat and sheep skins
Cuir — Peaux brutes — Lignes directrices pour la préservation des
peaux de chèvre et de mouton
Reference number
©
ISO 2020
© 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

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Characteristics of salt and auxiliary substances used in preservation processes .1
4.1 Characteristics of salt . 1
4.2 Quantity of salt . 1
4.3 Auxiliary chemicals and preservation mixtures. 2
5 Preservation methods of skins . 2
5.1 General . 2
5.2 Drying . 2
5.3 Wet salting . 3
5.4 Brining . 3
5.5 Dry salting . 3
5.6 Chilling . 3
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 Technical Committee ISO/TC 120 Leather, Subcommittee SC 1, Raw
hides and skins, including pickled pelts.
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 2020 – All rights reserved

Introduction
This document provides guidelines for processes of preservation that lead to a higher quality of
preserved goat and sheep skins. Such preserved goat and sheep skins are subsequently subjected to
further treatments for manufacturing of leather and eventually for production of leather goods.
This document has indicated preservation procedures that should be followed to prevent either of the
following situations:
— conditions occurring through the preservation treatments which affect the processability of skins;
— various defects that can form on goat and sheep skins due to inadequate preservation conditions
and during the period of storage and delivery to the users.
INTERNATIONAL STANDARD ISO 22284:2020(E)
Leather — Raw skins — Guidelines for preservation of goat
and sheep skins
1 Scope
This document provides guidelines for various preservation methods for raw goat and sheep skins. The
preservation methods are needed to suppress microbiological activity and to maintain the quality of
the skins during storage.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standard
...