ISO INTERNATIONAL STANDARD 11118 Second edition 2015-09-15 Gas cylinders Non-refillable metallic gas cylinders - Specification and test methods Bouteilles a gaz - Bouteilles a gaz meétalliques non rechargeables - Spécifications et méthodes d'essai Reference number ISO 11118:2015(E) ISO International Organization for Standardization @ IS0 2015 ng Institute of Sta ndardization 5956617 vided by IHS under I Not for Resale, 2015/11/11 08:38:22 itted without license from IHS IS0 11118:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. IsOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel.+41 22 749 0111 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Internationaibr PrganizationforStandardization Not for Resale, 2015/11/11 08:38:22 networking permitted without license from IHS IS0 11118:2015(E) Contents Page Foreword ..V Introduction. ..vii 1 Scope. 2 Normative references 3 Terms and definitions 4 Symbols. ..3 5 Materials .3 5.1 General requirements 3 5.2 Material types.. ..4 5.2.1 Carbon and low-alloy steels .4 5.2.2 Aluminium and aluminium alloy ..4 5.2.3 Austenitic stainless steels. .4 5.3 Chemical compositions. ..5 5.3.1 Carbon and low-alloy steels .5 5.3.2 Aluminium and aluminium alloys ..5 6 Inspection and testing .6 7 Design ..6 7.1 General requirements .6 7.2 Calculation of pressure containing parts 7.3 Design drawings. 1 8 Construction and workmanship 1 8.1 Construction .7 8.1.1 Types of construction of cylinder shell 1 8.1.2 Cylinder non-refillability .11 8.1.3 Pressure relief devices .11 8.2 Workmanship 11 9 Type approval procedure. .12 9.1 General requirements 12 9.2 Prototype tests .12 9.2.1 General .12 9.2.2 Material tests ..12 9.2.3 Tensile tests. .13 9.2.4 Burst tests. ..13 9.2.5 Drop tests. .15 9.2.6 Dimension checks ..16 9.2.7 Valve to cylinder interface test ..16 9.3 Design type approval .16 10 Batch tests .17 10.1 General requirements .17 10.2 Failure to meet test requirements ..17 11 Tests on every cylinder ..17 12 Markings. ..18 12.1 General, .18 12.2 Manufacturing and operational markings ..18 12.3 Other markings. .19 13 Test reports and certificate of compliance .19 Annex A (normative) Non-refillable sealing devices - Specifications and prototype testing .20 Annex B (informative) Type approval certificate .26 Inteatinal oganzation @stS201.5 - All rights reserved iii iseeZhejang Insttute of Standardization 5956617 ed without license from IHS