BS ISO 26422:2014 BSl Standards Publication Petroleum and related products - Determination of shear stability of lubricating oils containing polymers Method using a tapered roller bearing bsi. ..making excellence a habit: BS ISO 26422:2014 BRITISH STANDARD National foreword This British Standard is the UK implementation ofIS026422:2014. The UK participation in its preparation was entrusted to Technical Committee MCE/18/-/16, Hydraulic fluids. 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. @ The British Standards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 843433 ICS 75.100 Compliance witha British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policyand Strategy Committee on31March 2015. Amendments/corrigendaissuedsince publication Date Textaffected BS ISO 26422:2014 ISO INTERNATIONAL STANDARD 26422 Second edition 2014-12-15 Petroleum and related products Determination of shear stability of lubricating oils containing polymers Method using a tapered roller bearing Pétrole et produits connexes-Détermination de la stabilite au cisaillement des huiles lubrifiantes contenant des polymeres Méthodeavecroulementarouleauxconiques Referencenumber IS026422:2014(E) TO @IS02014 BSISO26422:2014 IS0 26422:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO 2014 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 ISO 2014-Allrights reserved BSISO26422:2014 IS0 26422:2014(E) Contents Page Foreword iv 1 Scope .1 2 Normative references. .1 3 Terms and definitions .1 .2 4 Principle 5 Reagents and materials .2 6 Apparatus. .2 7 Preparation. .3 7.1 Preparing the tapered roller bearing and testing apparatus assembly 3 7.2 Assembly of the shear stabilityapparatus 4 7.3 Running-in of the tapered roller bearing 4 7.4 Test conditions.. 5 7.5 Validation of test bearings 6 8 Procedure. 6 9 Referencing 6 9.1 General. 6 9.2 Validation of new test bearings 6 9.3 Referencing in service. 6 9.4 Frequencyofreferencetesting 7 9.5 Referencefluid controllimits 8 9.6 Reference fluids. 8 10 Reporting ofresults .8 11 Precision .8 12 Test report. .9 Bibliography .10 @ IS0 2014 - All rights reserved iii BSISO26422:2014 IS026422:2014(E) Foreword Iso (the International Organizationfor Standardization)is a worldwidefederation of national standards bodies (Iso member bodies). The work of preparing International Standards is normally carried out through Iso technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations,governmental and non-governmental,inliaison with Iso,also takepart inthe work ISo collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in theISo/IEC Directives, Part 1.In particular the different approval criteria needed forthe different types of Iso documents should be noted. This document was drafted in accordance with the editorial rules of the ISo/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the element