ISO INTERNATIONAL STANDARD 23935 First edition 2006-06-15 Aircraft Environmental test procedures for airborne fluid system components Resistance to fire in designated fire zones Aeronefs Methodes d'essai en environnement des éléments de systemes de fluides embarqués - Tenue au feu dans les zones désignées 《zone de feu》 Reference number ISO 23935:2006(E) @ ISO 2006 ISO23935:2006(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 ac- cepts 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 pa- rameters 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. ? ISO2006 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 ISO2006-All rightsreserved ISO 23935:2006(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO national 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 Interna tional Standard requires approval by at least 75 % of the member bodies casting a vote. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 23935 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 10, Aerospace fluid systems and components. izalion'ghts reserved ii Copvriaht International Oraanization for Standardizatior ISO 23935:2006(E) INTERNATIONAL STANDARD Aircraft Environmental test procedures for airborne fluid system components Resistance to fire in designated fire zones CAUTioN - Precautions shall be taken to safeguard the health of personnel conducting tests against the risk of fire, inhalation of smoke and/or toxic products of combustion. 1 Scope ponents located in zones designated as “fire zones" and built to satisfy the minimum level specified for with- standing fire. This International Standard does not relate to withstanding fire outside designated fire zones,nor to flammability requirements, or to those conditions induced by the flame coming from the combustion chamber. Normative references Thefollowingreferenceddocumentsareindispensablefortheapplicationofthisdocument.Fordatedrefer ences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2685:1998, Aircraft — Environmental test procedure for airborne equipment - Resistance to fire in designated fire zones. Terms and definitions 3 For the purposes of this document, the following terms and definitions apply. 3.1 designated fire zone region of an aircraft, for example comp