JIS-Z-8719-1996-ENG.pdf
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1、JAPANESE INDUSTRIAL STANDARD JIS 2 87 19: 1996 Metamerism index - Evaluation method of degree of metamerism for change in illuminant (nm) 540 October, 2000 ERRATA - Error Correct 0.356 0.359 Page 10, In Attached Table 2-1-2, the values of fi of F6 for each wavelength indicated below shall be correct
2、ed: Page 24, In Attached table 5- 1- 1, the value of fi of C for the wavelength indicated below shall be corrected: I wavelength 1 c, .fi I Remarks: This erratum is for correcting the first edition of this Standard. Japanese Standards Association -9- Copyright Japanese Standards Association Provided
3、 by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:52:13 MDTNo reproduction or networking permitted without license from IHS -,-,- STD*JIS Z 8719-ENGL L77b = 4733b08 0538355 b74 - J IS JAPANESE I NDUSTRIAL STAN DAR D Translated and Publis
4、hed by Japanese Standards Association Metamerism index-Evaluation method of degree of metamerism for change in illuminant ICs 91. 100. 20 Descriptors : roofing tiles, heavy clay ceramics, clay minerals, tiles Reference number : JIS Z 8719 : 1996 (E) 15 S Copyright Japanese Standards Association Prov
5、ided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:52:13 MDTNo reproduction or networking permitted without license from IHS -,-,- Z 8719 : 1996 This translation has been made based on the original Japanese Industrial Standard revised
6、 by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law: Date of Establishment: 1984-12-01 Date of Revision: 1996-07-01 Date of Public Notice in Official Gazette: 1996-07-01 Investigat
7、ed by: Japanese Industrial Standards Committee Divisional Council on Basic Items JIS Z 8719:1996, First English edition published in 1997-06 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107 JAPAN i n the event of any doubts arising as to the contents
8、, the original JIS is to be the final authority. Q JSA 1997 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 mechanical, including photocopying and microfilm, without permission in writing from the p
9、ublisher. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:52:13 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS Z 8719-ENGL L79b m q933
10、b08 0538157 Lib7 m JAPANESE INDUSTRIAL STANDARD JIS Z 8719:1996 Metamerism index-Evaluation method of degree of metamerism for change in illuminant 1 Scope This Japanese Industrial Standard specifies the evaluation method for degree of metamerism of a pair of samples(1) which the tristimulus values
11、are in matching or approximately in matching even though the spectral characteristics are different (hereafter referred to as “metameric pair”) under an illuminant which is taken as a reference (hereafter referred to as “reference illuminant”) by degree that the tristimulus values come to unmatching
12、 when the illuminant is changed. Note (1) A pair of samples does not include the sample with light source and fluorescency . Remarks 1 The evaluation method of degree of metamerism for change in illuminant (hereafter referred to as “degree of illuminant metamer- ism”) specified in this Standard conf
13、orms with the evaluation method of degree of metamerism specified in 5.2 of Publication CIE No. 15.2 (1986) Colorimetry, 2nd ed. (hereafter referred to as “CIE No. 15.2”) the Commission International de 1Eclairage-CIE in short-recom- mended in 1986. 2 In addition to the evaluation method of degree o
14、f metamerism specified in this Standard, JIS Z 8718, Evaluation method ofdegree ofmetamer- ism for change in observers specifies the evaluation method of metamer- ism when changing the observer. 3 The following standards are cited in this Standard: JIS Z 8105 JIS Z 8701 JIS Z 8720 JIS Z 8722 JIS Z 8
15、724 JIS Z 8725 P JIS Z 8730 Glossary of colour terms Colour specification-The CIE 1931 standard colorimet- ric system and the CIE 1964 supplementary standard colorimetric system Standard ill uminants and sources for colorimetry Methods of colour measurement-Reflecting or transmit- ting objects Metho
16、ds of measurement for light source colour Methods for determining distribution temperature and colour temperature or correlated colour temperature of light sources Colour specification-Colour differences of non-luminous object colours 2 Definitions For the purpose of this Standard, the following def
17、initions shall apply, and others be in accordance with JIS Z 8105. (1) degree of metamerism A degree of unmatching of tristimulus values of metameric pair under the observing condition different from the reference. (2) degree of illuminant metamerism A degree of metamerism when the illuminant change
18、s. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:52:13 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 Z 8719 : 1996 (3) metamerism index An index indicatin
19、g degree of illuminant metamerism of the metameric pair. Remarks : When it is necessary to distinguish, “Illuminant” shall be described before the words “metamerism index”. 3 Reference illuminant and test illuminant 3.1 Reference illuminant For the reference illuminant, the standard illuminant Da sp
20、ecified in JIS Z 8720 shall generally be used. Remarks : In the case where any other illuminant than the standard illuminant De5 is used for the reference illuminant, it shall be selected from the standard illuminants or supplementary standard illuminants specified in JIS Z 8720, and its type shall
21、be stated clearly. 3.2 Test illuminant The test illuminant shall generally be selected from the stan- dard illuminant A in accordance with JIS Z 8720 or representative fluorescent lamps having relative spectral power distributions specified in Attached Table 1. In the case where any other illuminant
22、 is used for the test illuminant its type shall be stated clearly. Remarks : In selecting the test illuminants of Attached Table 1, F6, F8 and F10 given in bold letters shall preferentially be selected. Informative reference : In the Commission International de 1Eclairage (CIE), F2, F7 and F11 marke
23、d with * in Attached Table 1 are defined as to be selected preferentially. 4 Evaluation of degree of metamerism The degree of metamerism of metameric pair shall be evaluated by the metamerism index. The metamerism index shall be a colour difference of metameric pair in colour matching under the refe
24、rence illuminant, evaluated under the test illuminant. In the case where the metameric pair under the reference illuminant and the condition of the tristimulus values not in matching perfectly, the colour difference shall be obtained after a correction has been carried out so that its tristimulus va
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