ISO INTERNATIONAL STANDARD 13785-1 First edition 2002-12-15 Reaction-to-fire tests for facades Part 1: Intermediate-scale test Essaisderéactionaufeudesfacades- Partie1:Essaiaéchelleintermediaire Reference number ISO 13785-1:2002(E) @ ISO 2002 No reproduction or networking permitted without license from IHS Not for Resale ISO 13785-1:2002(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, 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 @ISO2002 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.ch Printed in Switzerland yatigaaiSandardizato @ ISO 2002 - All rights reserved No reproduction or networking permitted without license from IHS Not for Resale ISO 13785-1:2002(E) Contents Page Scope 1 2 Normative references 1 Terms and definitions 2 4 Principle 3 Test facility 3 6 Fire source and exposure .. 3 7 Test specimen .... 5 8 Test specimen instrumentation 5 9 Test specimen conditioning 7 10 Test environment 7 11 Procedure ... 7 Expression of results 8 13Precision 8 14 Test report 8 Bibliography.. 10 ili No reproduction or networking permitted without license from IHS Not for Resale ISO 13785-1:2002(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. rights. IsO shall not be held responsible for identifying any or all such patent rights. SC 1, Fire initiation and growth. IsO 13785 consists of the following parts, under the general title Reaction-to-fire tests for facades: Part1:Intermediate-scaletest Part 2: Large-scale test Copyright International Organization for Standardization @ ISO 2002 - All rights reserved nse from IHS Not for Resale ISO 13785-1:2002(E Introduction Fire is a complex phenomenon. Its behaviour and effects depend on a number of interrelated factors. The behaviour environment in which they are exposed. The theory of "reaction to fire tests" is explained in ISO/TR 3814[2] buildings has led to an increased use of insulated and often ventilated facades With these types of construction products, there are three primary fire threats to the walls and ceilings/roofs of a building: a) an interior compartment fire venting through a window on to a facade; b) an exterior fire in combustibles accumulated near a wall (e.g. rubbish, vegetation); c) fire in an adjacent building, Item a) is generally the most severe and substantially the most significant. Fire can spread in several ways. The most significant is by spread over a combustible exterior surface or the fire insulationitself. The results may not, however, reflect the actual performance of exterior wall assemblies under all fire exposure conditions. typified by a fire within a building venting through a window and impinging directly on to a facade. The two parts of IsO 13785 provide two methods of test: an in