ISO INTERNATIONAL STANDARD 3385 Fourthedition 2014-07-15 Flexible cellular polymeric materials Determination of fatigue by constant-load pounding Materiauxpolymeres alveolaires souples-Determinationdela fatiguepar indentation acharge constante Reference number IS03385:2014(E) LSO CopyihtInternatinal Organization for Standardization @IS02014 without license from IHS Not for Resale IS03385:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2014 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. ISOcopyrightoffice Case postale 56.CH-1211 Geneva 20 Tel. +4122 749 0111 Fax +41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved No reproduction or networking permited without license from IHS Not for Resale IS03385:2014(E) Contents Page Foreword ..iv 1 Scope 2 Normativereferences 3 Principle. 4 Apparatus 1 5 Test pieces .4 5.1 Shapeand dimensions .4 5.2 Samples showing orientation .5 5.3 Number... .5 5.4 Conditioning ..5 6 Procedure ..5 7 Expression of results 7.1 Loss in thickness .6 7.2 Loss in hardness 7.3 Percentagehardnessloss .7 8 Precision .7 9 Test report. ..7 Annex A (informative) Typical loading cycle .9 Annex B (informative) Precision. .10 Annex C (informative) Precision study-Machine Type B ..12 Bibliography ..13 iii IHS under I withoutlicense from IHS Not for Resale