ISO INTERNATIONAL STANDARD 5834-4 Second edition 2019-02 Implants for surgery Ultra-high molecular-weight polyethylene Part 4: Oxidation index measurement method Implants chirurgicaux - Polyéthylene a tres haute masse moleculaire Partie 4: Methode de mesurage de I'indice d'oxydation Reference number IS0 5834-4:2019(E) ISO @ IS0 2019 IS0 5834-4:2019(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 5834-4:2019(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references ..1 3 Terms and definitions 4 Test articles. ..3 5 Materials and apparatus .3 5.1 Materials. .3 5.2 Apparatus. ..3 6 Significance and use ..3 7 Procedure. 7.1 Preparation of test specimens ..4 7.2 Configuration of test specimen in the spectrometer. ..4 7.3 Preparation of the infrared spectrometer ..4 8 Calculations. .4 8.1 General. .4 8.2 Oxidation peak area. .4 8.3 Normalization peak area ..4 8.4 Oxidation index. 4 8.5 Depthlocator ..5 8.6 Sample's surface oxidation index .5 8.7 Sample's bulk oxidation index ..6 8.8 Sample's oxidation index profile .6 9 Reports. .6 9.1 General . 6 9.2 Information concerning the material .7 9.3 Sample information .7 9.4 IR spectrometer parameters. .7 9.5 Calculationmethods .7 9.6 Sample's calculated surface oxidation index 9.7 Sample's calculated bulk oxidation index. 7 9.8 Sample's calculated oxidation index profile 7 Bibliography 8 @ IS0 2019 - All rights reserved iii