ISO/TR TECHNICAL REPORT 20118 First edition 2019-04 Plastics Guidance on fire characteristics and fire performance of PVC materials used in building applications Plastiques - Lignes directrices relatives aux caracteristiques et aux performances au feu des matériaux en PvC utilisés dans les applicationsdeconstruction Reference number ISO/TR 20118:2019(E) osi @IS02019 IS0/TR 20118:2019(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: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0/TR 20118:2019(E) Contents Page Foreword ..V Introduction. ..vi 1 Scope. 2 Normative references 3 Terms and definitions ..1 4 PvC building materials and products ..3 4.1 Definition and description .3 4.1.1 General. .3 4.1.2 PVC-U based products. .4 4.1.3 PVC-P based products .4 4.1.4 PVC-C based products 5 4.1.5 Flame retardants. 4.2 Product standards.. .6 5 Fire safety strategy .8 5.1 Fire safety objectives ..8 5.1.1 General 5.1.2 Safety of life ..9 5.1.3 Conservation of property .9 5.1.4 Continuity of business or service operations .10 5.1.5 Protection of the environment.. 5.1.6 Preservation of heritage. ..11 5.2 Fire scenarios. ..11 6 Fire test methods - Description and relevance ..13 6.1 General ..13 6.1.1 Reaction to fire tests applicable to plastics construction products ..13 6.1.2 Intermediatescaleplasticsreactiontofiretests ..14 6.1.3 Fire stage and fire tests ..14 6.1.4 Assessment of the fire threatto people ..14 6.2 Relevance of results and studies comparisons. ..15 7 Material fire characteristics relevant for PvC construction products ..16 7.1 Combustibility ..16 7.2 Ignitability. .18 7.2.1 Ignition temperature ..18 7.2.2 Ignitability measured by the cone calorimeter test 19 7.3 Oxygen index. 20 7.4 Heat release and heat release rate. 21 7.4.1 General 21 7.4.2 Heat release data 22 7.5 Flame spread 24 7.5.1 General. .24 7.5.2 Flame spread by flame propagation .26 7.5.3 Flame spread by flaming droplets .26 7.6 Smoke generation. 27 7.6.1 Smoke obscuration.. 27 7.6.2 Smoke toxicity 28 7.6.3 Smoke corrosivity 31 7.6.4 HCl decay 32 7.7 Char formation and intumescence. .33 Annex A (informative) Example of reaction to fire performance - Pvc-U pipe. .34 Annex B (informative) Example case history Plastimet accident. ..35 @ IS0 2019 - All rights reserved iii