ISO INTERNATIONAL STANDARD 247-2 First edition 2018-07 Rubber Determination of ash Part 2: Thermogravimetric analysis (TGA) Caoutchouc - Détermination du taux de cendres - Partie 2: Analyse thermogravimétrique (TGA) Reference number ISO 247-2:2018(E) rso International Organization for Standardization Standards and Technology 9972181 @IS02018 IS0 247-2:2018(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 CP401·Ch.deBlandonnet8 CH-1214 Vernier, Geneva Phone:+4122 749 0111 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ganizationfor Standardization icensee-Shenzhen Institute of Standards andecISogf1&- All rights reserved rious National Standards Bodies IS0 247-2:2018(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Principle 5 Reagents. ..2 6 Apparatus. ..2 7 Preparation of the test sample 8 Calibration ..2 9 Procedure. ..3 9.1 Method A 9.2 Method B 10 Expression of results ..3 11 Precision ..4 12 Test report. ..4 Annex A (informative) Precision. .5 Bibliography .7 ntemaonalanizatinAll rights reserved iii ee=Shenzhen Institute of Standards and Technology 9972181