ISO/TS TECHNICAL SPECIFICATION 21331 First edition 2020-11 Graphic technology and deinked pulp Guidance for assessing the deinking performance of printed paper products Technologie graphique et pate désencrée - Lignes directrices pour I'évaluation de la performance de désencrage des produits en papierimprimé Reference number ISO/TS21331:2020(E) ISO @ ISO 2020 IS0/TS 21331:2020(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2020 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 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 2020 - All rights reserved