ISO INTERNATIONAL STANDARD 17072-1 IULTCS/IUC27-1 Second edition 2019-02 Leather Chemical determination of metal content - Part 1: Extractable metals Cuir Détermination chimique de la teneur en métal - Partie1:Métauxextractibles Reference numbers ISO 17072-1:2019(E) [so IULTCS/IUC27-1:2019(E) c s @ IS0 2019 IS0 17072-1:2019(E) IULTCS/IUC27-1:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 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: +4122 749 0111 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 17072-1:2019(E) IULTCS/IUC27-1:2019(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references .1 3 Terms and definitions 4 Principle ..2 5 Reagents. ..2 6 Apparatus and materials. ..3 7 Sampling and sample preparation 8 Procedure .4 8.1 Preparation of acid artificial-perspiration solution .4 8.2 Extraction of leather sample 8.3 Analysis by ICP, AAS and SFA .4 8.3.1 General 4 8.3.2 ICP. .5 8.3.3 AAS .5 8.3.4 Analysis by SFA technique .5 9 Calculation and expression of results ..5 10 Test report .6 Annex A (informative) Interlaboratory test results and quantification limits .7 Bibliography. 8 @ IS0 2019 - All rights reserved iii