ISO INTERNATIONAL STANDARD 12625-7 Third edition 2021-08 Tissue paper and tissue products Part 7: Determination of optical properties - Measurement of brightness and colour with D65/10° (outdoor daylight) Papier tissue et produits tissue- Partie 7: Détermination des propriétes optiques - Mesurage du degre de blancheur et de la couleur en D65/10° (lumiere du jour extérieure) Reference number ISO 12625-7:2021(E) ISO @ ISO 2021 IS0 12625-7:2021(E) COPYRIGHTPROTECTED DOCUMENT IS02021 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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. IsO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2021 - All rights reserved