ISO INTERNATIONAL STANDARD 105-A03 Fifth edition 2019-10 Textiles Tests for colour fastness - Part A03: Grey scale for assessing staining Textiles Essais de solidité des coloris - Partie A03: Echelle de gris pour I'évaluation des degorgements Reference number IS0 105-A03:2019(E) ISO @ IS0 2019 IS0 105-A03:2019(E) COPYRIGHTPROTECTED DOCUMENT @ IS02019 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 beloworIso'smemberbodyinthecountryoftherequester 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: [email protected] Website: www.iso.org Published in Switzerland i @ IS0 2019 - All rights reserved IS0 105-A03:2019(E) Contents Page Foreword .. iv 1 Scope... 2 Normative references .. 1 3 Terms and definitions. 1 4 Principle...... Bibliography... @ IS0 2019 - All rights reserved iii IS0 105-A03:2019(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 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 38, Textiles, Subcommittee SC 1, Tests for coloured textiles and colorants. This fifth edition cancels and replaces the fourth edition (IS0 105-A03:1993), which has been technically revised. It also incorporates the Technical Corrigenda IS0 105-A03:1993/Cor.1:1997 and IS0 105-A03: 1993/Cor.2:2005. The main changes compared to the previous edition are as follows: the use of grey and black sleeves has been allowed; a tolerance of ±2 for the Y tristimulus value has been introduced. A list of all parts in the ISO 105 series can be found on the ISO website. 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 @ IS0 2019 - All rights reserved IS0 105-A03:2019(E) INTERNATIONAL STANDARD Textiles Tests for colour fastness Part A03: Grey scale for assessing staining 1 Scope This document describes the grey scale for determining staining of adjacent fabrics in colour fastness tests, and its use. A precise colorimetric specification of