BS ISO 23228:2011 BSl Standards Publication Thermoplastics pipes for the conveyance of fluids Determination of the stress-rupture resistance of moulding materials using plain strain grooved tensile (PSGT) specimens BSi raising standards worldwiderw BS ISO 23228:2011 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 23228:2011. The UK participation in its preparation was entrusted to Technical Committee PRI/88/4, Test Methods - Plastic Piping. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @BSI 2011 ISBN9780580575235 ICS 23.040.20 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2011. Amendments issued since publication Date Text affected BS ISO 23228:2011 INTERNATIONAL ISO STANDARD 23228 First edition 2011-10-01 Thermoplastics pipes for the conveyance of fluids Determination of the stress-rupture resistance of moulding materials using plain strain grooved tensile (PSGT) specimens Tubesenmatieresthermoplastiquespourletransportdesfluides- Determinationdela résistanceala rupture souscontraintedes materiauxdemoulage,aumoyend'eprouvettesdetractionrainureesa deformation plane Reference number ISO 23228:2011(E) O @ISO 2011 BS ISO 23228:2011 ISO23228:2011(E) COPYRIGHTPROTECTEDDOCUMENT ISO 2011 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 member body in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @IsO2011-Allrightsreserved BSISO23228:2011 ISO23228:2011(E) Contents Page Foreword iv Introduction 1 Scope. 2 Normativereferences. 3 Terms and definitions. 4 Principle 5 Apparatus.. 5.1 Loadingsystem 5.2 Constanttemperaturesystem 5.3 Timing device.. 5.4 Failuredetectiondevice 5.5 Sample grips.. 5.6 Calibrationandaccuracyoftheapparatus 6 Test specimen 6.1 Dimensions 6.2 Measurements 5 6.3 Specimen preparation 7 Conditioning 6 8 Procedure 6 6 Calculation 6 10 Test report AnnexA(informative)Determinationof specimendimensionsfortheplanestrain condition 8 Bibliography @ISo 2011All rights reserved ili BS ISO 23228:2011 ISO23228:2011(E) Foreword non-governmental, in liaison with isO, also take part in the work. isO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. transport offluids, Subcommittee Sc 5, Generalproperties of pipes,fittings andvalves of plasticmaterialsand theiraccessoriesTestmethods and basic specifications iv @ISO 2011All rights reserved BS ISO23228:2011 ISO23228:2011(E) Introduction materials for pipes and fittings, until the publication of this International Standard, no satisfactory test method has The method specified here has been demonstrated to replicate the stress conditions of internally pressurized perpendicularto the uniaxial loading direction. This method is useful for evaluating the stress-rupt