ISO INTERNATIONAL 105-X04 STANDARD Fourthedition 1994-09-01 Textiles - Tests for colour fastness Part X04: Colour fastness to mercerizing Essais de solidité des teintures Textiles Partie X04: Solidite des teintures au mercerisage ISO Reference number ISO 105-X04:1994(E) IS0105-X04:1994(E) Foreword ISO (the International Organization for Standardization) is a worldwide of preparing International Standards is normally carried out through IsO which a technical committee has been established has the right to be re- and non-governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnica! 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 Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 105-X04 was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 1, Tests for coloured textiles and colorants. This fourth edition cancels and replacesthe third edition (ISO 105-X04:1987), of which it constitutes a minor revision. ISO 105 was previously published in thirteen "parts", each designated by 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 anyform orbyanymeans,electronic ormechanical, includingphotocopying and microfilm, without permission in writing from the publisher. International Organizationfor Standardization Case Postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland ii INTERNATIONAL STANDARD ISO ISO 105-X04:1994(E) Textiles -- Tests for colour fastness Part X04: Colour fastness to mercerizing 1 Scope 3 Principle This part of IsO 105 specifies a method for deter- 3.1 A specimen of the textile in contact with a mining the resistance of the colour of textiles to the specified adjacent fabric is treated with sodium hy- action of concentrated solutions of sodium hydroxide droxide solution, rinsed, acidified, rinsed again and used in mercerizing. The method is mainly applicable dried. The change in colour of the specimen and the to cotton and to mixtures containing cotton. staining of the adjacent fabric are assessed by com- parison with the grey scales. 2 Normative references 3.2 As completely resistant specimens may show an apparent increase in depth of colour,these cannot The following standards contain provisions which, be rated 5 (no change) by the normal method of as- through reference in this text, constitute provisions sessment.Insuchcases,therefore,onlythechanges of this part of IsO 105. At the time of publication, the in hue and lightness can be assessed using the grey editions indicated were valid. All standards are subject scale, without consideration of the increase in depth, to revision, and parties to agreements based on this andsuchassessmentsshouldbemarkedwithanas part of isO 105 are encouraged to investigate the terisk (*). The meaning of the asterisk should be ex- possibility of applying the most recent editions of the plained in a footnote. standards indicated below. Members of IEC and ISO maintain registers of currently valid International EXAMPLES Standards. 5*: Increase in depth (not considered); no change in ISO 105-A01:1994, Textiles -- Tests for colour fast hue and lightness. ness - Part Ao1: General principles of testing. 3-4 redder*: Increase in depth (not considered); the IsO 105-A02:1993, Textiles — Tests for colour fast- hue became redder, matching grey scale 3-4. ness - Part Ao2: Grey scale for assessing change in 2 bluer, duller*: Increase in depth