ISO INTERNATIONAL STANDARD 11475 Third edition 2017-05 Paper and board Determination of CIE whiteness, D65/10° (outdoor daylight) Papier et carton -Détermination du degreé de blanc CIE, D65/10o (lumiere du jour extérieure) Reference number IS011475:2017(E) International Organization for Standardization @ IS0 2017 ZHEJIANG INSTOFSTANDARDIZATION C15956617 vided by IHS underI Not for Resale, 2017/8/21 01:18:40 ted without license from IHS IS0 11475:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Intenationaibr PrganizationforStandardization icensee-ZHEJIANG INST OF STANDARDIZRoISQ s1.7 - All rights reserved Not for Resale, 2017/8/21 01:18:40 etworking permitted without license from IHS IS0 11475:2017(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references ..1 3 Terms and definitions 4 Principle .3 5 Apparatus and equipment 3 6 Calibration 7 Sampling. 8 Preparation of test pieces ..5 9 Procedure ..5 10 Calculation and expression of results ..6 11 Precision ..7 12 Test report ..7 Annex A (normative) Spectral characteristics of reflectometers for determining tristimulus values .8 Annex B (normative) UV calibration service ..13 Annex C (informative) Precision ..15 Bibliography .16 iii See=ZHEJIANG INSTOFSTANDARDIZATION C15956617 ithout license from IHS