ISO INTERNATIONAL STANDARD 14558 Second edition 2016-05-15 Rubber Determination of residual unsaturation of hydrogenated nitrile butadiene rubber (HNBR) by infrared spectroscopy Caoutchouc Détermination de la non-saturation residuelle du caoutchouc nitrile butadiene hydrogeéné (HNBR) par spectroscopie a infrarouge Reference number ISO 14558:2016(E) ISO International Organization for Standardization e=ZHEJIANG INST OF STANDARDIZATION C1 5956617 @IS02016 mitted without license from IHS IS0 14558:2016(E) COPYRIGHT PROTECTEDDOCUMENT IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, 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 Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Licensee-ZHEJIANG INST OF STANDARDIZAISQ 0d6 - All rights reserved HS und Not for Resale, 2016/7/20 08:01:44 networking permited without license from IHS IS0 14558:2016(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Principle. 4 Reagents 5 Sampling. ..2 6 Apparatus .2 7 Procedure .2 7.1 Sample preparation .2 7.1.1 Purification by precipitation 2 7.1.2 Purification by extraction. 2 7.1.3 Preparation of cast HNBR film .3 7.2 Obtaining the IR spectrum .3 8 Calculations. .3 9 Precision .4 10 Test report ..4 Annex A (informative) Example of infrared spectrum interpretation and calculation ..5 Annex B (informative) Precision. .6 Bibliography 7 iii icenSee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 without license from IHS