ISO INTERNATIONAL STANDARD 10462 Third edition 2013-12-15 Gas cylinders Acetylene cylinders Periodic inspection and maintenance Bouteilles a gaz - Bouteilles d'acetylene - Controle et entretien periodiques Reference number [S0 10462:2013(E) @ IS0 2013 IS0 10462:2013(E) COPYRIGHTPROTECTEDDOCUMENT IS02013 All rights reserved. Unless otherwise specified, 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 Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax+41227490947 E-mail copyright@iso.org Web www.iso.org Published in Switzerland ii @ IS0 2013 - All rights reserved IS0 10462:2013(E) Contents Page Foreword Introduction 1 Scope 2 Normative references. 3 Terms and definitions 4 General. 4.1 Intervals between periodic inspections 4.2 Requirements for inspection, 5 Preparation of the acetylene cylinder.. 5.1 Depressurizationoftheacetylenecylinder 5.2 Preparation for external visual inspection. 5.3 Removal of the valve.. 5.4 Removal of neck/core hole filters. 6 Inspection and maintenance. 6.1 External visual inspection. 6.2 Inspection of the porous material 6.3 Addition of non-monolithic porous material 6.4 Replacement of porous material 6.5 Inspection of fusible plugs. 6.6 Inspectionofvalves 6.7 Inspection of cylinder neck. 6.8 Reassembly.. 7 Cylinder marking and identification 8 Records 9 Rejection and rendering cylinders unserviceable 10 Disposal of unserviceable cylinders. Annex A (informative) Tops of acetylene cylinders containing monolithic porous material. 11 Annex B (normative) External visual inspection .14 Annex C (normative) Determination of the top clearance .17 Annex D (normative) Cracks in the porous material 19 Annex E (informative) Rings for indicating the date of the next periodic inspection for gas cylinders .20 Bibliography .22 @ IS0 2013 - All rights reserved iii