ISO INTERNATIONAL STANDARD 17551 First edition 2018-02 Leather - Pickled sheep pelts Guidelines for grading on the basis of defect and size Cuir - Peaux de moutons picklees -Lignes directrices pour le classement sur la base des defauts et de la taille Reference number 1S0 17551:2018(E) @IS02018 [S0 17551:2018(E) Contents Page Foreword .iv 1 Scope. 1 2 Normative references .1 3 Terms and definitions .1 4 General .1 5 Grading on the basis of defects 1 5.1 Gradel 1 5.2 Grade II. 1 5.3 Grade Ill .2 5.4 Grade IV. 2 5.5 GradeV 2 6 Tabular and graphical representation of the classification system .2 7 Grading on the basis of size 3 7.1 General... 3 7.2 Extra large 3 7.3 Large. 3 7.4 Medium. 3 7.5 Small. .3 7.6 Extra small 3 @ 1S0 2018 - All rights reserved ii [S0 17551:2018(E) Foreword IsO (the International Organization for Standardization) is a worldwidefederation 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 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/lEc 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 wwwisoorg/direclives). 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 wwwiso.org/palents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on 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 the following URL:www.iso.org/iso/foreword.html. This document was prepared by Technical Committee ISO/TC 120, Leather, Subcommittee SC 1, Raw hidesandskins,includingpickledpelts. iv 1S0 2018 - All rights reserved