International ISO S Standard ISO 20433 IULTCS IUF 452 Third edition Leather Tests for colour fastness Colour fastness to crocking 2024-04 Cuir Essais de solidité des coloris -Solidité des coloris au degorgement par frottement Reference numbers IS0 20433:2024(en) IULTCS/IUF452:2024(en) @ ISO 2024 IS0 20433:2024(en) IULTCS/IUF 452:2024(en) COPYRIGHTPROTECTEDDOCUMENT IS02024 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 theinternetoranintranet,withoutpriorwrittenpermission.Permission canberequestedfromeitherIsOatthe addressbelow 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:+4122 749 0111 Email: [email protected] Website: www.iso.org Published in Switzerland @ IS0 2024 - All rights reserved ii