International ISO Standard IS0 20560-1 Second edition Safety information for the content 2024-06 of piping systems and tanks - Part 1: Piping systems Informations de sécurité relatives au contenu des systemes de tuyauteries et des reservoirs - Partie 1: Systemes de tuyauteries Reference number IS0 20560-1:2024(en) @ISO2024 IS0 20560-1:2024(en) COPYRIGHT PROTECTED DOCUMENT @ ISO 2024 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 ofthe requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+41227490111 Email: copyright@iso.org Website: www.iso.org Published in Switzerland @ IS0 2024 - All rights reserved ii IS0 20560-1:2024(en) Contents Page Foreword. iv Introduction. Scope 1 1 2 Normative references 1 3 Terms and definitions. 1 4 General requirements 2 5 Elements of safety information systems for piping 3 5.1 3 General 5.2 Colour coding to identify the nature of the content in the piping .3 5.3 .5 Contentname 5.4 Flow direction indicators. 6 5.5 Warning signs and GHS pictograms 6 Technical and operational information 6 7 6.1 7 General 6.2 Additional safety information 8 6.3 Additional technical information 8 6.4 Supplementary identification colours .8 7 Layout requirements. 9 8 Installation of safety information systems for piping .10 Maintenance, inspection and revision. 9 11 .12 Annex A (informative) Standard colours and equivalent colour codes ..13 Annex B (informative) Observation distance Annex C (informative) Examples of safety information systems .17 Annex D (informative) Firefighting systems 22 Annex E (informative) Maritime piping systems .23 Bibliography. .25 @ IS0 2024 - All rights reserved iii