ISO INTERNATIONAL STANDARD 13971 First edition 2012-09-01 Refrigeration systems and heat pumps Flexible pipe elements, vibration isolators, expansion joints and non- metallic tubes Requirements and classification Systemes de réfrigération et pompes a chaleur -Elementsflexibles detuyauterie,isolateursdevibration,jointsdedilatationettubesnon métalliquesExigences etclassification Reference number ISO 13971:2012(E) LSO @ ISO 2012 Provided by IHS ense from IHS Not for Resale ISO 13971:2012(E) COPYRIGHTPROTECTEDDOCUMENT ISO2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Casepostale56·CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 4122 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2012 -All rights reserved Provided by IHS ion or networking permitted without license from IHS Not for Resale ISO 13971:2012(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEc Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 13971 was prepared by Technical Committee ISO/TC 86, Refrigeration and air-conditioning, Subcommittee Sc 1, Safety and environmental requirements for refrigerating systems @ ISO 2012 -All rights reserved ii Not for Resale