ISO INTERNATIONAL STANDARD 11494 Third edition 2019-07 Jewellery and precious metals Determination of platinum in platinum alloys - ICP-OES method using an internal standard element Joaillerie et métaux précieux Dosage du platine dans les alliages de platine - Méthode par ICP-OES utilisant un étalon interne Reference number IS0 11494:2019(E) @ IS0 2019 IS0 11494:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2019 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 Fax: +4122 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland i @ IS0 2019 - All rights reserved