BS ISO BRITISH STANDARD 2470-2:2008 Paper, board and pulps - Measurement of diffuse blue reflectance factor Part 2: Outdoor daylight conditions (D65 brightness) ICS 85.040; 85.060 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BS ISO 2470-2:2008 National foreword This British Standard is theUK implementation of ISO2470-2:2008. The UK participation in its preparation was entrusted to Technical Committee PAI/11, Methods of test for paper, board and pulps. Alist of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity fromlegal obligations. This British Standard Amendments/corrigendaissuedsincepublication was published under the authority of the Standards Policy and Date Comments Strategy Committee on 30 November 2009 BSI 2009 ISBN978 0 580 58712 2 BS ISO 2470-2:2008 ISO INTERNATIONAL STANDARD 2470-2 First edition 2008-11-01 Paper,boardandpulpsMeasurement ofdiffusebluereflectancefactor Part 2: Outdoor daylight conditions (D65 brightness) Papier,carton etpates-Mesuragedufacteurde reflectance diffuse danslebleu Partie 2: Conditions de lumiere du jour exterieure (degre de blancheur D65) Reference number ISO 2470-2:2008(E) ISO @ISO2008 BSISO 2470-2:2008 ISO 2470-2:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but 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 the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTED DOCUMENT ISO 2008 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 either Iso at the address below or ISO copyright office Case postale 56.CH-1211Geneva 20 Tel. + 4122 749 0111 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2008All rights reserved BS ISO 2470-2:2008 ISO2470-2:2008(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 International Standard requires approval by at least 75 % of the member bodies casting a vote rights. IsO shall not be held responsible for identifying any or all such patent rights. Iso 2470 consists of the following parts, under the general title Paper, board and pulps-Measurement of diffusebluereflectancefactor Part 1: Indoordaylightconditions (/soO brightness) —Part2:Outdoordaylightconditions (D65brightness) ISO 2008 - All rights reserved ili BSISO 2470-2:2008 ISO2470-2:2008(E) Introduction and geometric characteristics of the instrument used. This part of isO 2470 should therefore be read in conjunction with IsO 2469, which defines the geometric characteristics of the instrument and also defines the photometric calibration procedure to be adopted. The radiance factor of fluorescent materials, for which this property is most interesting, is also dependent on be read in conjunction with IsO 11475, which describes the procedure for adjusting the UV content in this type of instrument to match the CIE standard illuminant D65. known as ISO brightness, which is determined under conditions corresponding to the CiE-illuminant C, where the UV content is much lower,