ISO INTERNATIONAL STANDARD 19901-6 First edition 2009-12-15 Petroleum and natural gas industries - Specific requirements for offshore structures Part 6: Marine operations Industries du peétrole et du gaz naturel Exigences spécifiques relativesauxstructuresenmer Partie 6: Operations marines Reference number ISO 19901-6:2009(E) @ ISO 2009 yIHS under Not for Resale ISO 19901-6:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO2009 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 Case postale 56 . CH-1211 Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2009 - All rights reserved I without license from IHS Not for Resale ISO 19901-6:2009(E) Contents Page Foreword .vii Introduction. ..ix 1 Scope, 2 Normative references. 3 Terms and definitions 2 4 Symbols and abbreviated terms .15 4.1 Symbols.. 15 4.2 Abbreviated terms 18 5 General considerations. .20 5.1 Introduction.... 5.2 Jurisdiction 21 5.3 HSEplan.. 22 5.4 Risk management. 22 5.5 Job safety analysis.. 23 5.6 Environmental impact study 23 5.7 Manning, qualifications, job and safety training. 23 5.8 Incident reporting................. 5.9 Personnel tracking ... 24 5.10 Approval by national authorities .. 24 6 Organization, documentation and planning .... 24 6.1 Introduction.... 24 6.2 Organization and communication ..... 6.3 Quality assurance and administrative procedures..... 26 6.4 Technical procedures .. 26 6.5 Technical documentation ..... 26 6.6 Certification and documentation ... 6.7 Systems and equipment.... .30 7 Metocean and earthquake requirements ... 32 7.1 Introduction..... 32 7.2 33 7.3 Metocean conditions.... 7.4 Metocean criteria.. 35 7.5 Weather windows 36 7.6 Operational duration .. 7.7 Metocean forecast. 37 7.8 Earthquake... 38 8 Weightcontrol 38 8.1 .38 8.2 Weight control classes. 8.3 Contingencies for class A 39 8.4 Weight and CoG constraints. 39 8.5 Weight control audits..... 8.6 Dimensional control. 9 Stability. .39 9.1 Introduction. 39 9.2 General requirements 39 9.3 Stability calculations... Copyrght InternationalOrganizaisadardizaoghtsreserved ili se from IHS Not for Resale ISO 19901-6:2009(E) 9.4 Intact stability....... 9.5 Damage stability .42 9.6 Single-barge transports . .45 9.7 Multi-barge transports..... .45 9.8 Classed vessels..... 9.9 Self-floating structures .. .45 9.10 Loadout operations . .47 9.11 9.12 Inclining tests.... ..48 10 Ballasting operations, .49 10.1 Introduction.... .49 10.2 Ballast system..... .50 10.3 Protection against damage and deterioration ... 10.4 Prevention of progressive flooding in damage condition ... .52 10.5 Control and indicating systems ... .52 10.6 Pumps .53 10.7 Valve arrangements. ..53 10.8 Vent systems... 10.9 Air cushion system capacity .... 10.10 System testing 11 11.1 Introduction. 11.2 Categories of loadout.. .55 11.3 Structure being loaded. 11.4 Site and quay.. 11.5 Barge.... ..56 11.6 Link beams, skidways an