ISO INTERNATIONAL STANDARD 7628 First edition 2010-02-01 Road vehicles Thermoplastics tubing for air braking systems Vehicules routiers - Tuyauteries thermoplastiques de dispositifs de freinage pneumatique Reference number ISO 7628:2010(E) @ ISO 2010 THS under: Not for Resale ISO 7628:2010(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. COPYRIGHT PROTECTED DOCUMENT ISO2010 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. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland Copyrihtinteratinal Oorganization for Standardization @ ISO 2010 - All rights reserved without license from IHS Not for Resale ISO 7628:2010(E) Contents Page Foreword .iv 1 Scope 2 Normative references 3 Terms and definitions 4 Marking and identification. 5 Dimensions 6 Manufacture 6.1 Materials .. 6.2 Tubing.... 7 Installation on the vehicle.... 7.1 Use of tube assemblies on the vehicle 7.2 Installation precautions ... 8 Testing and requirements.. 9 Test procedures and requirements. 9.1 Burst test.... 9.2 Deformation under pressure. 9.3 ..9 9.4 Impact test after heat ageing.. 10 9.5 Layer adhesion test multilayer pipes. 10 9.6 Moisture absorption.... 10 9.7 Low temperature flexural test 10 9.8 Stress cracking test 9.9 Resistance to ethanol . 12 9.10 Resistance to battery acid. 12 9.11 Resistanceto oil... 13 9.12 Resistance to urea solution.. 13 9.13 9.14 Artificial weathering test... 9.15 Ozone test. 14 9.16 Tube assemblies. 15 Annex A (normative) Cold impact apparatus.. 16 Annex B (normative) Tests on tube assemblies (tube with end fittings). 19 Annex C (informative) Method for leak detection in leak-proof testing .. .22 Annex D (informative) Synopsis of test and corresponding samples. 25 Bibliography... .26 Copyrght International Organizaion forStandardizalon ghts reserved ii se from IHS Not for Resale