ISO INTERNATIONAL STANDARD 11157 Second edition 2005-09-15 Road vehicles Brake lining assemblies Inertia dynamometer test method Véhicules routiers - Ensembles de garnitures de frein - Methode d'essai sur banc dynamometrique a inertie Reference number ISO 11157:2005(E) @ ISO 2005 ISO 11157:2005(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 downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat 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 ? ISO2005 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 @ ISO 2005 - All rights reserved ISO 11157:2005(E) Contents Page Foreword. iv 1 Scope 2 Normative references 3 Terms, definitions and symbols.. 3.1 Terms and definitions.... 3.2 4 General 5 Test equipment . 3 6 Test conditions 7 Test method. 7.1 General. 7.2 Type-0 test (cold performance test). 7.3 Type-l test (fade test). 7.4 Type-ll test (downhili behaviour test) 7.5 Type-IlI test (fade test).... 8 Assessment of test data and presentation of results. 8.1 Legal requirements and evaluation of test results...... 8 8.2 Type-O test.... 8 8.3 Type-l, Type-ll and Type-llI test . 9 8.4 Exampleofanassessment. 9 9 Inspection of brake linings or pads. 10 Annex A (informative) Alternative equations for the calculation of the MFDD. 16 Annex B (informative) Accuracy considerations, 18 nghts reserved ili ISO 11157:2005(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (sO member bodies). The work of preparing International Standards is normally carried out through ISO technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnical committeehasbeen International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the IsO/lEC Directives, Part 2. 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. ISO 11157 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 2, Braking systems and equipment. This second edition cancels and replaces the first edition (isO 11157:1999), which has been technically revised. @ ISO 2005 - All rights reserved INTERNATIONAL STANDARD ISO 11157:2005(E) Road vehicles Brake lining assemblies Inertia dynamometer test method 1 Scope This International Standard specifies a dynamometer test method to homologate alternative types of brake linings (including pads) mounted on original equipment, in accordance with UN-ECE Regulation No. 13-09, Annex 15. This International Standard is applicable to road vehicles of categories M, N and O (see 3.1) as defined in UN ECE Consolidated resolution of the construction of vehicles, R.E.3, Annex 7. case of vehicles of category O th