ISO/TR TECHNICAL REPORT 9705-2 First edition 2001-05-01 Reaction-to-fire tests Full-scale room tests for surface products - Part 2: Technical background and guidance Essais de réaction au feu- -Essais dans une piece en vraie grandeur pour lesmateriauxderevetementinterieur Partie 2: Données techniques et lignes directrices Reference number ISO/TR 9705-2:2001(E) ISO @ ISO 2001 THS under Not for Resale ISO/TR 9705-2:2001(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 @ISO2001 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 Casepostale56.CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.ch Web www.iso.ch Printed in Switzerland @ISO2001-Allrightsreserved itted without license from IHS Not for Resale ISO/TR 9705-2:2001(E) Contents Page Foreword. .iv Introduction 1 Scope. 2 Characteristics of the ignition sources .... 2.1 Standard ignition source 2.2 Alternative ignition source....... 3 Sensitivity analyses.. 3.1 General..... 3.2 Specimen configurations... 3.3 Effect of the burner size. 3.4 4 Heat balance in the room.. 4.1 General.. 4.2 Heat release by combustion.... 4.3 Heat loss by convection.... 8 4.4 Heat loss by conduction . .8 4.5 Heat loss by radiation . .8 4.6 Results of heat balance calculations.... .9 5 Measuring techniques.... 9 5.1 Mass flow through the doorway and interface height. .9 5.2 Measurementoftoxicgases... .10 5.3 Mass loss rate from the sample... 10 6 Extended calculations.. 10 6.1 Filling time of room and hood .. 10 6.2 Prediction of mass flow and interface position...... 6.3 Estimate of sample mass loss.... 14 6.4 Fire growth models.... 14 7 Precision data, 14 7.1 General...... .14 7.2 Iso round robin... 7.3 ASTM round robin .. .16 8 Other test protocols using similar equipment.... ..16 9 Specimen mounting ... 17 Annex A Calculation of HRR by means of different gas analysis data ... ...18 Annex B Practical example of the measurements of toxic gases by FTiR and ion chromatography .. ...26 Annex C Estimation of mass loss rate by means of HRR and gas analysis measurements.. ...32 Annex D Overview of other test protocols using similar equipment ..35 Bibliography ..38 ii IHS under li se from IHS Not for Resale