ISO INTERNATIONAL STANDARD 8829-1 First edition 2009-04-01 Aerospace Test methods for polytetrafluoroethylene (PTFE) inner-tube hose assemblies Part 1: Metallic (stainless steel) braid Aéronautique et espace Méthodes d'essai des tuyauteries flexibles a tube interieur en polytetrafluoroéthylene (PTFE) - Partie 1: Tresses métalliques (en acier inoxydable) Reference number ISO 8829-1:2009(E) @ISO 2009 HS under ted without license from IHS Not for Resale ISO 8829-1:2009(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 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 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 @ 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 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 @ IS0 2009 - All rights reserved Tby IHS unde I without license from IHS Not for Resale ISO 8829-1:2009(E) Contents Page Foreword. iv 1 Scope 2 Normative references 3 Terms and definitions .. 4 Tests of PTFE inner tubes .. 4.1 Density and relative density .. 4.2 4.3 Rolling and proof pressure tests 4.4 Electrical conductivity test .... 5 Tests on hoses and hose assemblies .... 5.1 Stress degradation test.. 5.2 Pneumatic effusion test . 5.3 Electrical conductivity test... 5.4 Visual and dimensional inspection, 10 5.5 Determination of elongation or contraction. 10 5.6 Volumetric expansion test. .11 5.7 Leakage test..... 12 5.8 Proof pressure test.. 5.9 Burst pressure tests. .13 5.10 Impulse test. 13 5.11 Flexure test.. .14 5.12 Fuel resistance test. 14 5.13 Low temperature flexure testing .... 5.14 Pneumatic leakage test... ..15 5.15 Vacuum test... 16 5.16 Pneumatic surge test , 16 5.17 Thermal shock test .... 5.18 Fire test... .17 Annex A (informative) Test fluids 18 Bibliography ii ted withoutlicensefromIHS Not for Resa