BS ISO 12136:2011 BSl Standards Publication Reaction to fire tests - Measurement of material properties using a fire propagation apparatus BSi raising standards worldwiderw BS ISO 12136:2011 BRITISH STANDARD National foreword This British Standard is the UK implementation ofISO 12136:2011. The UK participation in its preparation was entrusted to Technical Committee FSH/21/-/5, Reaction to fire tests - Heat release and smoke measurement. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @BSI 2011 ISBN978 0580633942 ICS 13.220.40; 13.220.50 Compliance witha British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2011. Amendments issued since publication Date Text affected BS ISO 12136:2011 ISO INTERNATIONAL STANDARD 12136 First edition 2011-08-15 ReactiontofiretestsMeasurementof material properties using a fire propagationapparatus Essaisdereactionaufeu-Mesuragedespropriétes des materiauxau moyend'unappareillagedepropagationdufeu Reference number ISO 12136:2011(E) @ISO 2011 BS ISO 12136:2011 ISO12136:2011(E) COPYRIGHTPROTECTEDDOCUMENT ? ISO2011 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 Casepostale 56.CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2011 - All rights reserved BSISO12136:2011 ISO12136:2011(E) Contents Page Foreword. Introduction. .vi 1 Scope. 2 Normative references... 3 Terms and definitions.. 4 Symbols.. 5 Principle 6 Apparatus. 6.1 General 6.1.1 Dimensions.. 6.1.2 Components... 6.2 Infrared (IR) heating system.... 6.3 Load cell system... 6.4 Ignitionpilotflame.. 6.5 Ignition timer... 6.6 Gas analysis system... 6.6.1 Gas sampling ... 6.6.2 Carbon dioxide/carbonmonoxideanalysers 6.6.3 Inlet air oxygen analyser... 6.6.4 Optionalproductanalysersforthecombustiontest. 6.7 Combustion air distribution system..... 6.7.1 6.7.2 Air distribution chamber.. 6.7.3 Air supply pipes... 6.8 Water-cooled shield .. 6.9 Exhaust system.... 6.10 Measuring section instruments 6.10.1 Measuring section thermocoupleprobe.. 6.10.2 AveragingPitotprobeandpressuretransducer 6.11 Heat flux gauge.... 6.12 Digital data acquisition system. 7 Hazards... 7.1 Laboratory safety 7.2 Safety precautions .... 7.3 Exhaustsystemoperation... 8 Test specimen.... 8.1 Specimen holders. 8.2 Specimen size and preparation.. 8.2.1 Ignition,pyrolysisandcombustiontestsofhorizontal specimens 8.2.2 Firepropagation test of vertical, rectangular specimens ..... 8.2.3 Fire propagation test of vertical, cable specimens.. 9 Calibration... 9.1 Radiant-flux heater.. 9.1.1 9.1.2 Positioning of radiant-flux heaters.... 10 9.2 Gas-analyser calibration... 10 9.2.1 Carbondioxide/carbonmonoxideanalysers 10 @ ISO 2011 - All rights reserved ii BSISO12136:2011 ISO12136:2011(E) 9.2.2 Oxygen analyser. .10 9.2.3 Optional hydrocarbon gas analyser .10 9.3 9.4 Heat release calibration ..11 10 Specimen conditioning .. ..11 11 Procedure.... 11.1 Procedure1Ignition test method. 11.2 Procedure2—Combustiontestmethod.. ..12 11.3 Procedure 3Pyrolysis test method.... 11.4 Procedure4—Firepropagationtestmethod ..14 12 Calculation. ..15 13 Test report.... 13.1 Procedure1Ignitiontest method.. ..16 13.2 Procedure2Combustiontestmethod. .17 13.3 Procedure 3Pyrolysis test method...... 13.4 Procedure4Firepropagationtest method... ..17 AnnexA(informative)Lasersmokemeasuring system Annex B (informative)Rationale.... A