BS IS0 13784-2:2020 BSI Standards Publication Reaction-to-fire tests for sandwich panel building systems Part 2: Test method for large rooms bsi. BSISO13784-2:2020 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 13784-2:2020. The UK participation inits preparation was entrustedto Technical Committee FSH/21/-/7, Reaction to fire tests - Large and intermediate scaletests. A list of organizations represented on this committee can be obtained on requestto its committeemanager. This publication does not purport to include all the necessary provisions ofa contract.Users areresponsiblefor its correctapplication. @TheBritishStandards Institution2020 Published byBSI Standards Limited 2020 ISBN9780539046984 ICS13.220.50 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Amendments/corrigendaissuedsincepublication Date Textaffected BSIS013784-2:2020 INTERNATIONAL ISO STANDARD 13784-2 Second edition 2020-10-30 Reaction-to-fire tests for sandwich panel building systems - Part 2: Test method for large rooms Essais de reaction au feu des systemes de fabrication de panneaux de type sandwich - Partie 2: Méthode d'essai pour des chambres de grande taille Reference number IS0 13784-2:2020(E) ISO @ISO 2020 BSISO13784-2:2020 IS013784-2:2020(E) COPYRIGHTPROTECTEDDOCUMENT ISo 2020,Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,or posting on the internet or an intranet, without prior 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 Ch. de Blandonnet 8. CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org i @ IS0 2020 - All rights reserved BSIS013784-2:2020 IS013784-2:2020 Contents Page Foreword ..iv Introduction. .. 1 Scope. ..1 2 Normative references 3 Termsand definitions 4 Principle 5 Types of structure. ..3 ..3 6 Testspecimen ..3 7 Test room design and construction 8 Ignition source. ..8 9 Apparatus ..10 .10 9.2 Additional equipment 10 Procedure ..12 10.1Initial conditions 10.2 Test 13 11 Precision .14 12 Test report ..14 Bibliography ..16 @ IS0 2020 - All rights reserved ili BSIS013784-2:2020 IS013784-2:2020 Foreword Iso (theInternational Organization for Standardization)is a worldwidefederation ofnational standards bodies (iso member bodies).The work of preparing International Standards is normally carried out throughIso technical committees.Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations,governmental and non-governmental, in liaison with IsO, also takepart in the work. ISo collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the Iso/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types ofIso documents should be noted.This document was drafted in accordance with the editorial rules of the Iso/IEC Directives, Part 2 (see www.iso.org/directives). Attention isdrawntothepossibilitythat some ofthe elementsof this document maybethesubject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. Details of anypatentrights identified duringthedevelopmentof thedocument will be in the Introductionand/or on the Iso list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitutean