ISO 17776:2016

INTERNATIONAL ISO
STANDARD 17776
Second edition
2016-12-15
Petroleum and natural gas
industries — Offshore production
installations — Major accident hazard
management during the design of new
installations
Industries du pétrole et du gaz naturel — Installations des plates-
formes en mer — Lignes directrices relatives aux outils et techniques
pour l’identification et l’évaluation des risques
Reference number
©
ISO 2016
© ISO 2016, Published in Switzerland
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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 4
4 Major accident hazard management overview . 5
4.1 General . 5
4.2 Project management commitment . 5
4.3 Project management accountability . 6
4.4 Project plan to manage major accident hazards . 6
4.5 Objectives of major accident hazard management . 6
4.6 Selection of hazard evaluation and risk assessment methods . 7
4.7 Good engineering practice . 7
4.8 Documentation . 8
4.8.1 General. 8
4.8.2 Register of major accident hazards . 9
4.9 Actions management . 9
4.10 Management of change . 9
5 Management of major accident hazards in design .10
5.1 Overview of MA hazard management .10
5.2 Key concepts .11
5.2.1 Understanding the MA hazards .11
5.2.2 Inherently safer design (ISD) .12
5.2.3 Design strategies for managing MA hazards.13
5.2.4 Barriers .13
5.2.5 Performance standards .14
5.2.6 Communication with technical and operational teams.15
6 Screening and concept selection process .15
6.1 General .15
6.2 Objectives.16
6.3 Functional requirements .17
6.3.1 Screening .17
6.3.2 Hazard identification.17
6.3.3 Major accident hazards evaluation .17
6.3.4 ISD and barriers.18
6.3.5 Performance standards .18
6.3.6 Sufficiency of measures .18
6.3.7 Documentation .18
7 Concept definition and optimization.19
7.1 General .19
7.2 Objectives.20
7.3 Functional requirements .20
7.3.1 Hazard identification.20
7.3.2 Major accident hazard evaluation .20
7.3.3 Risk assessment . .20
7.3.4 Inherently safer design (ISD) .20
7.3.5 Barriers .21
7.3.6 Performance standards .21
7.3.7 Sufficiency of measures .21
7.3.8 Documentation .22
8 Detailed design and construction phase .22
8.1 General .22
8.2 Objectives.23
8.3 Functional requirements .23
8.3.1 Overview .23
8.3.2 Hazard identification.24
8.3.3 Major accident hazards evaluation .24
8.3.4 Risk assessment . .24
8.3.5 Inherently safer design (ISD) .24
8.3.6 Barriers .24
8.3.7 Performance standards .25
8.3.8 Sufficiency of measures .25
8.3.9 Register of major accident hazards .25
8.3.10 Documentation .25
8.3.11 Procurement of equipment .26
8.3.12 Construction, completion and commissioning .26
8.3.13 Transfer to operation .26
8.3.14 Actions management .26
9 Major accident hazard management in operation .27
9.1 General .27
9.2 Objectives.27
9.3 Functional requirements .28
9.3.1 Barrier management .
...