ISO INTERNATIONAL STANDARD 834-14 First edition 2019-05 Fire-resistance tests Elements of building construction - Part 14: Requirements for the testing and assessment of applied fire protection to solid steel bar Essais de résistance au feu - Eléments de construction - Partie 14: Exigences pour les essais et I'évaluation de la protection contre I'incendie appliquée aux barres pleines en acier Reference number IS0 834-14:2019(E) @ IS0 2019 IS0 834-14:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +4122 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland i @ IS0 2019 - All rights reserved IS0 834-14:2019(E) Contents Page Foreword .V Introduction .vi 1 Scope. 1 2 Normative references .2 3 Terms and definitions .2 4 Symbols and abbreviated terms 5 Test equipment. .3 5.1 General. 3 5.2 Furnace. 4 5.3 Loading equipment 4 6 Test conditions 4 6.1 General. 4 6.2 Support conditions 4 6.3 Number of test specimens 4 6.4 Size of test specimens. 4 6.5 Construction of steel test specimens 4 6.5.1 Protected steel bars 4 6.5.2 Application of the fire protection material 5 6.6 Composition of test specimen component materials 5 6.6.1 Steel specification 5 6.6.2 Fire protection materials 5 6.7 Selection of test specimens. 7 6.7.1 Principle of selection .7 7 Installation of the test specimens. 8 7.1 Test specimen installation patterns 8 7.2 Installation of the test specimens .8 7.3 Furnace load. 8 8 Conditioning of the test specimens .8 9 Application of instrumentation .9 9.1 General 9 9.2 Instrumentation for measurement and control of furnace temperature 9 9.2.1 General 9 9.2.2 Furnace temperature in the region of test specimens. 9 9.2.3 Instrumentation for the measurement of steel temperatures 10 9.3 Instrumentation for the measurement of pressure. 11 10 Test procedure. 11 10.1 General 11 10.2 Furnace temperature and pressure 11 10.3 Steelwork temperature. 11 10.4 Observations .11 10.5 Termination of test 12 11 Test results 12 11.1 Acceptability of test results 12 11.2 Presentation of test results 12 12 Assessment 13 12.1 General .13 12.2 Assessment procedure for thermal performance 13 13 Assesment report 13 @ IS0 2019 - All rights reserved iii