ISO INTERNATIONAL STANDARD 26866 First edition 2009-12-01 Road vehicles Brake lining friction materials Standard wear test procedure for commercial vehicles with air brakes Vehicules routiers - Materiaux de friction pour garnitures de freins . Methode normale d'essai d'usure pour véhicules industriels équipés de systemesdefreinagepneumatiques Reference number ISO 26866:2009(E) @ ISO 2009 ISO26866:2009(E) PDF disclaimer 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 no liability in this area. 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 ISO2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, isO's memberbody 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 2009 - All rights reserved ISO 26866:2009(E) Contents Page Foreword i Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Symbols. 5 Sampling. 6 Test method . 6.1 Principle.. 6.2 Test equipment and parts 6.3 Test conditions.......... 6.4 Wear measurement methods .... 6.5 Test procedure for disc brake systems 6.6 Test procedure for drum brake systems.. 6.7 Expression of results... 7 7.1 Report for disc brakes . 7.2 Report for drum brakes. 7.3 Lining data sheet.... Iso 2009-All rights reserved ii