ISO INTERNATIONAL STANDARD 17554 Second edition 2014-12-15 Reaction to fire tests Mass loss measurement Essais de réaction au feu Mesurage de la perte de masse Reference number IS0 17554:2014(E) ISO International Organization for Standardization see=Zhejiang Institute of Standardization 5956617 @IS02014 vided by IHS under I Not for Resale, 2015/3/11 02:32:23 No reproduction or networking permitted without license from IHS IS0 17554:2014(E) COPYRIGHT PROTECTED DOCUMENT @ISO2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested 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.org Published in Switzerland Inteationai br DrganizationforStandardization Not for Resale, 2015/3/11 02:32:23 No reproduction or networking permited without license from IHS IS0 17554:2014(E) Contents Page Foreword ..V 1 Scope .1 2 Normative references 3 Terms and definitions 4 Symbols. 5 Principle ..3 6 Apparatus. .3 6.1 General .3 6.2 Cone-shaped radiant electrical heater .4 6.3 Radiation shield .5 6.4 Irradiance control .5 6.5 Weighing device. ..5 6.6 Specimen holder and retainer frame ..5 6.7 Ignition circuit 7 6.8 Ignitiontimer 6.9 Heat flux meters. .8 6.10 Data collection and analysis system ..8 7 Suitability of a product for testing ..8 7.1 Surface characteristics. .8 7.2 Asymmetrical products .8 7.3 Materials of short burning time ..8 7.4 Composite specimens. .9 7.5 Dimensionally unstable materials 7.6 Materials that require testing under compression. .10 8 Specimen construction and preparation ..10 8.1 Specimens... .10 8.2 Conditioning of specimens. .11 8.3 Preparation 11 8.3.1 Specimen wrapping. .11 8.3.2 Specimen preparation ..11 8.3.3 Preparing specimens of materials that require testing under compression ..12 9 Test environment. .12 10 Calibration ..12 10.1 Preliminary calibrations .12 10.1.1 Irradiance control system response characteristics ..12 10.1.2 Weighing device response time .12 10.1.3Weighing device output drift. ..12 10.2 Operating calibrations. .13 10.2.1 Weighing device accuracy ..13 10.2.2 Heater calibration .13 10.3 Less frequent calibrations .13 10.3.1Operating heat flux meter calibration .13 11 Test procedure ..13 11.1 General precautions ..13 11.2 Initial preparation. .14 11.3 Procedure ..14 12 Calculations. ..15 12.1 Average mass loss rate .15 13 Test report. ..16 iii icensee=Zhejiang Institute of Standardization 5956617 d without license from IHS