ISO INTERNATIONAL STANDARD 247-1 First edition 2018-07 Rubber Determination of ash Part 1: Combustion method CaoutchoucDétermination du taux de cendres - Partie 1: Technique de combustion seche Reference number IS0 247-1:2018(E) [so @ IS0 2018 Provided by IHS Markit under license with ANSI IS0 247-1:2018(E) COPYRIGHTPROTECTEDDOCUMENT @IS02018 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 40i: Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2018 - All rights reserved Provided by IHS Markit under iense withANS IS0 247-1:2018(E) Contents Page Foreword iv 1 Scope. 1 2 Normative references 1 3 Terms and definitions 4 Principle. 2 4.1 Method A 4.2 Method B 4.3 Method C 4.4 Test results. 5 Reagent. 6 Apparatus 2 7 Preparation of the test portion 3 8 Procedure 3 8.1 Method A 8.2 Method B 8.3 Method C 9 Expression of results. 4 10 Precision 4 11 Test report Annex A (informative) Precision Bibliography @ IS0 2018 - All rights reserved iii Provided by IHS Markit under license with ANSI