ISO INTERNATIONAL STANDARD 48-6 First edition 2018-08 Rubber, vulcanized or thermoplastic - Determination of hardness Part 6: Apparent hardness of rubber-covered rollers by IRHD method Caoutchouc vulcanisé ou thermoplastique Deétermination de la dureté Partie 6: Dureté apparente des cylindres revetus de caoutchouc par la meéthode DIDC Reference number ISO 48-6:2018(E) ISO @ IS0 2018 Provided by IHS Markit under license with ANSI IS0 48-6:2018(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 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:+4122 749 0111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @IS0 2018 -All rights reserved Provided by IHS Markit under iense withANS IS0 48-6:2018(E) Contents Page Foreword iv Introduction V 1 Scope. 1 2 Normative references . 3 Terms and definitions. 4 Time interval between forming and finished grinding, and testing 2 5 Conditioning and temperature of test. 2 6 Apparatus. 2 6.1 Rollers having a radius greaterthan 50 mm. 6.2 Rollers having a radius of 4 mm to 50 mm. 6.3 Small rollers having a radius less than 4 mm 7 Procedure 8 Expression ofresults 9 Test report Bibliography 5 @ IS0 2018 - All rights reserved iii Provided by IHS Markit under license with ANSI