ISO/TS TECHNICAL SPECIFICATION 22451 First edition 2021-05 Recycling of rare earth elements Methods for the measurement of rare earth elements in industrial waste and end-of-life products Recyclagedesélementsdesterresrares-Methodespourle mesurage des elements des terres rares dans les dechets industriels et lesproduitsenfindevie Reference number ISO/TS22451:2021(E) ISO @IS02021 IS0/TS22451:2021(E) COPYRIGHTPROTECTEDDOCUMENT @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 priorwritten permission.Permission can be requested from either IsO at theaddress 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: +4122749 0111 Email:[email protected] Website: www.iso.org Published in Switzerland ii @IS0 2021 -All rights reserved