ISO INTERNATIONAL STANDARD 21995 First edition 2008-03-15 Road vehicles Test of vehicle air braking systems with a permissible mass of over 3,5 t Acquisition and use of reference values using a roller brake tester Vehicules routiers - Essais des systemes de freinage a air comprimé des véhicules de masse admissible de plus de 3,5 t - Acquisition et utilisationdesvaleursdereferenceenutilisant unbancdefreinagea rouleaux Reference number ISO 21995:2008(E) @ ISO 2008 by IHS under ted without license from IHS Not for Resale ISO21995:2008(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 @ ISO2008 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 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 copyright@iso.org Web www.iso.org Published in Switzerland @ ISO 2008 - All rights reserved edwithoutlicense from IHS Not for Resale ISO 21995:2008(E) Contents Page Foreword. Introduction 1 Scope 2 Normative references 3 Terms, definitions and symbols. 3.1 Terms and definitions.. 3.2 Symbols... 4 Acquisition method, 5 Use of reference values for testing on roller brake testers. 6 Data acquisition and distribution by the vehicle manufacturers. 7 Documentation of results and evaluation, Annex A (informative) Examples .. Bibliography. 3 Copyright internatinal organizaio far standardizalion ghts reserved ii nse from IHS