ISO INTERNATIONAL STANDARD 1496-3 Fifth edition 2019-04 Series 1 freight containers Specification and testing Part 3: Tank containers for liquids, gases and pressurized dry bulk Conteneurs de la série 1 - Spécifications et essais Partie 3: Conteneurs-citernes pour les liquides, les gaz et les produits solides en vrac pressurisés Reference number ISO 1496-3:2019(E) osi @ IS0 2019 IS0 1496-3:2019(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 1496-3:2019(E) Contents Page Foreword ..V 1 Scope .1 2 Normative references ..1 3 Terms and definitions 4 Dimensions and ratings. ..2 4.1 External dimensions .2 4.2 Ratings.... 5 Design requirements. .2 5.1 General .2 5.2 Corner fittings.. .3 5.2.1 General 3 5.2.2 Doubler plates. 5.3 Base structure. .3 5.4 End structure .4 5.5 Side structure. 4 5.6 Tank. .4 5.6.1 Design and construction ..4 5.6.2 Corrosion allowance. .4 5.6.3 Tank openings ..4 5.6.4 Pressure and vacuum relief devices ..5 5.6.5 Inspection and maintenance openings .6 5.6.6 Gauging devices. 6 5.6.7 Sealing (customs requirements) 5.7 Optional features .6 5.7.1 Gooseneck tunnels .6 5.7.2 Walkways. .6 5.7.3 Ladders. .6 5.7.4 Tank insulation. 5.7.5 Tank heating and refrigeration. 6 Testing .7 6.1 General 6.2 Test No. 1 Stacking ..8 6.2.1 General. 6.2.2 Procedure. .8 6.2.3 Requirements 8 6.3 Test No. 2 Lifting from the fourtop cornerfittings .9 6.3.1 General. 9 6.3.2 Procedure. .9 6.3.3 Requirements 9 6.4 Test No.3 — - Lifting from the four bottom corner fittings .9 6.4.1 General. .9 6.4.2 Procedure. 6.4.3 Reguirements .10 6.5 Test No. 4 External restraint (longitudinal) 10 6.5.1 General. ..10 6.5.2 Procedure ..10 6.5.3 Requirements ..10 6.6 Test No. 5 - Internal restraint (longitudinal) (dynamic) .10 6.6.1 General. ..10 6.6.2 Procedure. .10 6.6.3 Requirements ..10 6.7 Test No. 6 Internal restraint (lateral) ..10 IS0 2019 - All rights reserved ii