ISO INTERNATIONAL STANDARD 105-E08 Third edition 1994-09-15 Textiles - Tests for colour fastness Part E08: Colour fastness to hot water Textiles Essais de solidité des teintures Partie E08: Solidite des teintures a I'eau chaude ISO Reference number ISO105-E08:1994(E) ISO 105-E08:1994(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. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International a vote. International Standard ISO 105-E08 was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee Sc 1, Tests for coloured textiles and colorants. This third edition cancels and replacesthe second edition (ISO 105-E08:1987), of which it constitutes a technical revision. ISO 105 was previously published in thirteen "parts", each designated by a letter (e.g. "Part A"), with publication dates between 1978 and 1985. Each part contained a series of "sections", each designated by the re- spective part letter and by a two-digit serial number (e.g. "Section Ao1"). These sections are now being republished as separate documents, them- nations. A complete list of these parts is given in ISO 105-A01. ISO1994 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanicai, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland INTERNATIONAL STANDARD ISO ISO 105-E08:1994(E) Textiles Tests for colour fastness Part E08: Colour fastness to hot water 1 Scope fabrics is rolled around a glass rod, treated with slightly acidified hot water and dried. The change in This part of is0 105 specifies a method for deter- colour of the specimen and the staining of the adja- mining the resistance of the colour of textiles of all cent fabrics are assessed by comparison with the kinds and in all forms to the action of hot water. The grey scales. method is mainly applicable to wool and textiles con- taining wool. 4 Apparatus and reagent 2 Normative references 4.1 Vessel, to hold a cylindrical specimen 40 mm long in hot water, fitted with reflux condenser to The following standards contain provisions which reduce evaporation. through reference in this text, constitute provisions of this part of IsO 105. At the time of publication, the 4.2 Thermostatically controlled bath, to maintain editions indicated were valid. All standards are subject the contents of the vessel (4.1) at 70 °C ± 2 C. to revision, and parties to agreements based on this part of IsO 105 are encouraged to investigate the 4.3 Glass rod, 5 mm to 8 mm in diameter. possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Wool adjacent fabric, complying with section 4.4 Standards. F01 ISO 105-F:1985.measuring 40mmx 100 mm. ISO 105-A01:1994, Textiles - Tests for colour fast- ness Part Ao1: General principles of testing. 4.5 Cotton adjacent fabric complying with section F02 of ISO 105-F:1985, or, in the case of blends, ad- ISO 105-A02:1993, Textiles --- Tests for colour fast- ness - Part A02: Grey scale for assessing change in jacent fabric made from the kind of fibre admixtured colou