ISO INTERNATIONAL STANDARD 13785-2 First edition 2002-12-15 Reaction-to-fire tests for facades Part 2: Large-scale test Essais de réaction au feu des facades - Partie 2: Essai a grande échelle Reference number ISO 13785-2:2002(E) @ ISO 2002 No reproduction or networking permited without license from IHS Not for Resale ISO 13785-2:2002(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 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, 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 pyhatoganizatSandadizatio @ ISO 2002 - All rights reserved No reproduction or networking permitted without license from IHS Not for Resale ISO 13785-2:2002(E) Contents Page 1 Scope 1 2 Normative references 1 Terms and definitions 2 Principle 3 5 Test facility and test facility calibration 3 6 Fire source and exposure 5 7 Test specimen .... 6 Test specimen instrumentation 6 8 9 Test specimen conditioning 8 10 Test environment 9 11 Procedure 9 12 Expression of results 9 13 Precision 9 14 Test report 10 Annexes A Standard ignition source .. 11 BAlternative ignition sources 13 B.1Liquids 13 B.2 Wooden cribs . 13 Bibliography.. 16 ili No reproduction or networking permited without license from IHS Not for Resale ISO 13785-2:2002(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/lEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of IsO 13785 may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 13785-2 was prepared by Technical Commitee ISO/TC 92, Fire safety, Subcommittee 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 Annex A forms a normative part of this part of ISO 13785. Annex B is for information only. Copyright International Organization for Standardizatior @ ISO 2002 - All rights reserved Not fr Resale ISO13785-2:2002(E) Introduction Fire is a complex phenomenon. Its behaviour and effects depend on a number of interrelated factors. The behaviour of materials and products depends on the characteristics of the fire, the method of use of, the materials and the environment in which they are exposed. The theory of "reaction to fire tests" is explained in [2]. buildings, has led to an increased use of insulated and often ventilated facades. In their end use, facade assemblies can potentially be subjected to three primary fire exposure scenarios. These are: a) an interior compartment fire vent