BS ISO 18558:2015 BSl Standards Publication Licensedcopy:IPLogin,UniversityofOxford,Versioncorrectasof Fine ceramics (advanced ceramics, advanced technical ceramics) Test method for determining elastic modulus and bending strength of ceramic tube and rings bsi. ..making excellence a habit. BRITISH STANDARD BS ISO 18558:2015 National foreword This British Standard is the UK implementation of IS0 18558:2015. The UK participation in its preparation was entrusted to Technical Committee RPI/13, Advanced technical ceramics. 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. Licensed copy: IP Login, University of Oxford, Version correct as of 02/05/2016 @The British Standards Institution 2015.Published by BSI Standards Limited2015 ISBN978 0580818707 ICS 81.060.30 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 May 2015. Amendments issued since publication Date Textaffected BS ISO 18558:2015 INTERNATIONAL ISO STANDARD 18558 First edition 2015-05-15 Fine ceramics (advanced ceramics, advanced technical ceramics) Test method for determining elastic modulus and bending strength of ceramic tube and rings Céramiques techniques-Méthode d'essai pour la détermination dumoduleélastique et delarésistanceen flexiondes tubeset anneaux en ceramique Reference number IS0 18558:2015(E) TSO @ISO2015 BSISO18558:2015 IS018558:2015(E) COPYRIGHTPROTECTEDDOCUMENT @IS02015 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 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 ISO2015-Allrightsreserved BSISO18558:2015 IS0 18558:2015(E) Contents Page Foreword ..iv 1 Scope ..1 2 Normativereferences 3 Terms and definitions 4 Principle Licensed copy: IP Login, University of Oxford, Version correct as of 02/05/2016 5 Apparatus ..2 5.1 Testing machine .2 T 5.2 Data acquisition 5.3 Dimension-measuring device. .2 Test pieces 22 6 6.1 Test piece size. 6.2 Testpiecepreparation .2 T 6.2.1 General. 6.2.2 Test piece storage. .3 6.2.3 Number of test pieces. .3 Testprocedures 7 ..3 7.1 Testing machine and loading speed 3 7.2 Elasticmodulusmeasurement. .3 7.3 Bending strength measurement 4 7.4 Temperatureand relative humidity .4 Calculation ofresults .5 8 8.1 Calculation of elastic modulus for split ring .5 8.1.1 Calculationof theelasticmodulus 5 8.1.2 Meanvalueand standard deviationforelasticmodulus 5 8.2 Calculation of bending strength for split ring .6 8.2.1 8.2.1 Standard formula forbending strength ..6 8.2.2 Meanvalueand standard deviationforbendingstrength .6 9 Test report .6 Bibliography .8 @ IS0 2015 - All rights reserved ili BSISO18558:2015 IS0 18558:2015(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (Iso member bodies).The work of preparing International Standards is normally carried out throughIsOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnical committee has been established has the right to be represented on that committee. International organizations, governmental and 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 procedures used