ISO INTERNATIONAL STANDARD 19353 Third edition 2019-01 Safety of machinery Fire prevention and fire protection Sécurité des machines - Prevention et protection contre I'incendie Reference number ISO 19353:2019(E) osi @IS02019 IS0 19353:2019(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 19353:2019(E) Contents Page Foreword ..iv Introduction. .. 1 Scope. ..1 2 Normative references ..1 3 Terms and definitions ..1 4 Fire hazards .3 4.1 General .3 4.2 Combustible materials .4 4.3 Oxidizers. .4 4.4 Ignition sources ..4 5 Strategy for fire risk assessment and risk reduction .5 5.1 General. .5 5.2 Determination of the limits of the machinery 7 5.3 Identification of fire hazards. 7 5.4 Risk estimation. .8 5.5 Risk evaluation .9 5.6 Risk reduction. .10 5.6.1 General .10 5.6.2 Inherently safe design measures .10 5.6.3 Safeguarding. ..11 5.6.4 Complementary protective measures .11 6 Procedure for the selection of complementary protective measures ..12 6.1 General ..12 6.1.1 Use of the procedure .12 6.1.2 Determination of the residual risk level 6.1.3 Specification of requirements for the choice of fire detection and fire suppressionsystem. ..13 6.1.4 Specification of safety and performance requirements ..13 6.1.5 Selection of system parts and suitable fire-extinguishing agent. ..13 6.1.6 Decision on the need for further complementary protective measures .13 6.1.7 Validation .13 6.2 Selection of the fire prevention and protection system in relation to the expected risk level .13 6.2.1 General. ..13 6.2.2 Injury to persons. .14 6.2.3 Safety considerations .14 6.2.4 Selection of system parts .14 6.2.5 Selection of fire-extinguishing agent ..14 6.2.6 Validation ..15 7 Information for use ..15 Annex A (informative) Examples of machines and their typical fire-related hazards ..17 Annex B (informative) Example of a methodology for selecting and qualifying a fire detection and fire suppression system .18 Annex C (informative) Example for the design of a fire suppression system integrated in machinery .35 Annex D (informative) Examples of ignition sources. ..36 Annex E (informative) Example for the risk assessment and risk reduction of a machining centre for the machining of metallic materials. .38 Bibliography. .49 @ IS0 2019 - All rights reserved ii