ISO INTERNATIONAL STANDARD 2439 Fourth edition 2008-12-15 Flexible cellular polymeric materials - Determination of hardness (indentation technique) Materiauxpolymeresalveolairessouples-Determinationdeladurete (technique par indentation) Referencenumber ISO 2439:2008(E) @ISO 2008 Not for Resale ISO2439:2008(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts noliabilityinthisarea. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTEDDOCUMENT ?ISO2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or isO's memberbody in the country of the requester. ISO copyright office Casepostale56.CH-1211Geneva20 Tel.+ 4122749 0111 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published inSwitzerland @ ISO 2008 -All rights reserved without license from IHS Not for Resale ISO 2439:2008(E) Contents Page Foreword. 1 Scope 2 Normativereferences 3 Terms and definitions. 4 Principle. 5 Apparatus 6 Testpieces 6.1 Shapeanddimensions 6.2 Samples showing orientation. 6.3 Conditioning 7 Procedure. 7.1 General.. 7.2 Preliminary indentation for Methods A, B and C. 4 7.3 Method A-Determination of the 40 %/30 s indentation hardness index .... 7.4 MethodB—Determinationofthe25%-40%-65%/30sindentationhardness characteristics... 7.5 Method C-Determination of the4o % indentation hardness check.. 7.6 MethodD—Determinationofthe25%/20slowindentationhardnessindex 5 7.7 MethodEDeterminationofthecompressivedeflectioncoefficientandhysteresisloss 5 8 Repeattests. 9 Test report.. AnnexA (informative)Test method parametersandtypicalgraphs 8 Annex B (informative) Precision of Method E. 12 Bibliography ... 14 ionalorganizaonfrstandardizationghtsreserved ili romIHS