ISO-5631-2000.pdf
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1、Reference number ISO 5631:2000(E) ISO 2000 INTERNATIONAL STANDARD ISO 5631 First edition 2000-03-01 Paper and board Determination of colour (C/2) Diffuse reflectance method Papier et carton Dtermination de la couleur (C/2) Mthode par rflectance diffuse Copyright International Organization for Standa
2、rdization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 02:05:57 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5631:2000(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance wi
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4、policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Eve
5、ry care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2000 All rights reserved. Unless otherwise specified, no part of this publicati
6、on may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 ? CH-1211 Geneva
7、20 Tel. + 41 22 749 01 11 Fax + 41 22 734 10 79 E-mail copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2000 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale,
8、04/21/2007 02:05:57 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5631:2000(E) ISO 2000 All rights reservediii ContentsPage Foreword.iv Introduction.v 1Scope 1 2Normative references1 3Terms and definitions .1 4Principle2 5Apparatus.2 6Sampling.3 7Preparation of test p
9、ieces.3 8Procedure.3 9Calculation3 10Expression of results 4 11Test report5 Annex A (normative) Calculation of tristimulus values 6 Bibliography9 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Res
10、ale, 04/21/2007 02:05:57 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5631:2000(E) iv ISO 2000 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work o
11、f 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-governmenta
12、l, 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft In
13、ternational 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. Attention is drawn to the possibility that some of the elements of this Internati
14、onal Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 5631 was prepared by Technical Committee ISO/TC 6,Paper, board and pulps. Annex A forms a normative part of this International Standard. Copy
15、right International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 02:05:57 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5631:2000(E) ISO 2000 All rights reservedv Intr
16、oduction The colour of an object can be uniquely characterized by means of a triplet of colour coordinates such as the 1931 CIE tristimulus values, the CIELAB 1976 L*, a*, b* coordinates or the dominant wavelength, excitation purity and luminous reflectance. The values of such coordinates depend upo
17、n the conditions of measurement, particularly the spectral and geometric characteristics of the instrument used. This International Standard should therefore be read in conjunction with ISO 2469. This method describes the measurement and description of colour in terms of the CIE illuminant C and the
18、 CIE 1931 (2) standard observer. The measurement and calculations can be carried out in an analogous manner with respect to the CIE standard illuminant D65 and the CIE 1964 (10) standard observer or with other illuminant/observer combinations, but this is not in accordance with this International St
19、andard. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 02:05:57 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization fo
20、r Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 02:05:57 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARDISO 5631:2000(E) ISO 2000 All rights reserved1 Paper and board D
21、etermination of colour (C/2) Diffuse reflectance method 1Scope This International Standard specifies a method for measuring the colour of paper and board by the diffuse reflectance method with the elimination of specular gloss. This International Standard is not applicable to coloured papers or boar
22、ds which incorporate fluorescent dyes or pigments. It may be used to determine the colour of papers or boards which contain fluorescent whitening agents provided the UV-content of the illumination on the test piece has been adjusted to conform to that in the CIE illuminant C using a fluorescent refe
23、rence standard provided by an authorized laboratory as described in ISO 2470. 2Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or rev
24、isions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the norm
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