JIS JAPANESE INDUSTRIAL STANDARD Transiated and Published by Japanese Standards Association JIS L 0804 : 2004 (SWTF/JSA) Grey scale for assessing change in colour ICS 59.080.01 Reference number : JIS L 0804 : 2004 (E) PROTECTED BY COPYRIGHT 7 S L 0804 : 2004 Foreword This translation has been made based on the original Japanese Industrial Standard revised by the Minister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee, as the result of proposal for revision of Japanese Industrial Standard submitted by Suga Weathering Technology Foundation (SWTF) Japanese Standards Association (JSA) with the draft being attached, based on the provision of Article 12 Clause 1 of the Industrial Standardization Law applicable to the case of revision by the provision of Article 14. Consequently JIS L 0804:1994 is replaced with this Standard. This revision has been made based on IS0-105-A02:1993, Textiles Tests for colour fastness - Part Ao2:Grey scale for assessing change in colour for the purposes of making it easier to compare this Standard with International Standard; to prepare Japanese Industrial Standard conforming with International Standard; and to propose a draft of an International Standard which is based on Japanese Industrial Standard. Attention is drawn to the possibility that some parts of this Standard may conflict with a patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have technical properties. The relevant Minister and the Japanese Industrial Standards Committee are not responsible for identifying the patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have the said technical properties. Date of Establishment: 1965-01-01 Date of Revision: 2004-04-20 Date of Public Notice in Official Gazette: 2004-04-20 Investigated by: Japanese Industrial Standards Committee Standards Board Technical Committee on Consumer Life Products JIS L 0804 :2004, Second English edition published in 2005-08 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original jis is to be the final authority. JSA2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or microfilm, without permission in writing from the publisher. Printed in Japan PROTECTED BY COPYRIGHT L 0804 : 2004 Contents Page Introduction 1 Scope 2 Normative references 3Definitions 1 4 Colour of colour chips 5 Structure, shape and dimensions: 2 6Appearance 3 7 Colorimetry method . 3 8 Inspection method .. 3 Annex 1 (normative) Colour difference according to Adams-Nickerson's colourdifferenceformula Annex 2 (informative) Comparison table between JIS and corresponding International Standard .. 5 (i) PROTECTEDBYCOPYRIGHT JAPANESE INDUSTRIAL STANDARD JIS L 0804 : 2004 Grey scale for assessing change in colour Introduction This Japanese Industrial Standard has been prepared based on the fourth edition of ISO 105-A02, Textiles --- Tests for colour fastness - - Part A02: Grey scale for assessing change in colour, published in 1993, with the addition of the specification (colour of colour chip) and provision (colour difference according to Adams-Nickerson's colour difference formula) not stated in corresponding Interna- tional Standard. Portions given sidelines or dotted underlines are the matters modified from the given in annex 2 (informative). 1 Scope This Standard specifies the grey scale to be used as a reference when assessing the degree of change in colour of the specimen in colour fastness tests visually. Remarks :' The International Standard corresponding to this Standard is as follows. In addition, symbols which denote the degree of correspondence i