ISO INTERNATIONAL STANDARD 19246 Firstedition 2016-07-15 Rubber compounding ingredients Silica Oil absorption of precipitated silica Ingredients de melange du caoutchouc-Silice-Absorption d'huile des silices precipitees Reference number ISO19246:2016(E) ISO Intemational Organization for Standardization @IS02016 =ZHEJIANG INST OF STANDARDIZATION C1 5956617 itted without license from IHS IS0 19246:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS02016,Published inSwitzerland 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 +4122 749 09 47 copyright@iso.org www.iso.org Intemationaibr PrganizationforStandardization Uicensee-ZHEJIANG INSTOF STANDARDIZoISQ,6-All rights reserved etworking permitted without license from IHS Notfor Resale, 2016/9/22 06:23:1 IS0 19246:2016(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normativereferences ..1 3 Principle 4 Materials ..1 5 Equipment. .2 6 Sampling. ..2 7 Procedure .2 7.1 Preliminary note .2 7.2 Determination .3 7.2.1 Method A (powder sample,micro-perls) .3 7.2.2 Method B (granulated samples) 4 7.3 Evaluation. .4 7.3.1 Evaluation for powder and micro-perl materials 7.3.2 Evaluation of granulated materials. .5 8 Precisiondata .5 9 Test report. .5 Annex A (normative) Normalization ofthe mixer chamberbyusing reference materials .6 AnnexB (informative)Precision data .12 Bibliography .14 iii e=ZHEJIANG INSTOFSTANDARDIZATION C15956617 thout license from IHS