ISO INTERNATIONAL STANDARD 12472 First edition 2003-05-15 Fire resistance of timber door assemblies Method of determining the efficacy of intumescent seals Résistance au feu d'assemblages de portes en bois-Methode de determination de I'efficacite des joints en renflage Reference number ISO 12472:2003(E) ISO @ ISO 2003 oyIHSunder Not for Resale ISO12472:2003(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. ?ISO2003 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 memberbody in the country of the requester. ISO copyright office Case postale 56.CH-1211Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland Copyihtinteratinal organization for Standardization @ ISO 2003 - All rights reserved itted without license from IHS Not for Resale ISO 12472:2003(E) Contents Page Foreword. Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Apparatus... 5 Test specimen 6 Pre-test analysis and installation... 7 Test procedure 8 Performance criteria .. 9 Expression of results.. 10 Test report. 11 Field of direct application.... Annex A (informative) Guidance and information on the role of intumescent seals and operation and limitations of the test.... Copyright International Organizaion for Standardization rights reserved ii from IHS Not for Resale ISO 12472:2003(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen non-governmental, in liaison with isO, also take part in the work. iso collaborates closely with the InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. 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 document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 12472 was prepared by Technical Committee ISO/TC 92, Fire safety, Subcommittee SC 2, Fire containment. onal Organization for Standardization @ISo2003-Allrightsreserved ISO 12472:2003(E) Introduction There are no recognized accelerated ageing methods suitable for use with intumescent sealing products and, as a consequence, real time ageing tests are carried out. It was considered that over a period of twenty years. manufacturing variations would probably occur on any type of proprietary fire-resisting door. The effect of such identified. The fact that the method has eradicated most of the variables, making it repeatable and reproducible, also makes it suitable for quality control purposes. As a quality control test it has the added advantage of heating the materials, the method also allows the pressure-forming charac