SIST EN ISO 19900:2014

SLOVENSKI STANDARD
SIST EN ISO 19900:2014
01-februar-2014
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SIST EN ISO 19900:2004
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SORãþDGL,62
Petroleum and natural gas industries - General requirements for offshore structures (ISO
19900:2013)
Erdöl- und Erdgasindustrie - Allgemeine Anforderungen an Offshore-Bauwerke (ISO
19900:2013)
Industries du pétrole et du gaz naturel - Exigences générales pour les structures en mer
(ISO 19900:2013)
Ta slovenski standard je istoveten z: EN ISO 19900:2013
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
SIST EN ISO 19900:2014 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 19900:2014

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SIST EN ISO 19900:2014

EUROPEAN STANDARD
EN ISO 19900

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2013
ICS 75.180.10 Supersedes EN ISO 19900:2002
English Version
Petroleum and natural gas industries - General requirements for
offshore structures (ISO 19900:2013)
Industries du pétrole et du gaz naturel - Exigences Erdöl- und Erdgasindustrie - Allgemeine Anforderungen an
générales pour les structures en mer (ISO 19900:2013) Offshore-Bauwerke (ISO 19900:2013)
This European Standard was approved by CEN on 19 October 2013.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19900:2013 E
worldwide for CEN national Members.

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SIST EN ISO 19900:2014
EN ISO 19900:2013 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 19900:2014
EN ISO 19900:2013 (E)
Foreword
This document (EN ISO 19900:2013) has been prepared by Technical Committee ISO/TC 67 “Materials,
equipment and offshore structures for petroleum, petrochemical and natural gas industries” in collaboration
with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum,
petrochemical and natural gas industries” the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2014, and conflicting national standards shall be withdrawn at
the latest by June 2014.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 19900:2002.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 19900:2013 has been approved by CEN as EN ISO 19900:2013 without any modification.

3

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SIST EN ISO 19900:2014

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SIST EN ISO 19900:2014
INTERNATIONAL ISO
STANDARD 19900
Second edition
2013-12-15
Petroleum and natural gas
industries — General requirements
for offshore structures
Industries du pétrole et du gaz naturel — Exigences générales pour
les structures en mer
Reference number
ISO 19900:2013(E)
©
ISO 2013

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SIST EN ISO 19900:2014
ISO 19900:2013(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
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 + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

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SIST EN ISO 19900:2014
ISO 19900:2013(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 6
4.1 Symbols . 6
4.2 Abbreviated terms . 7
5 General requirements and conditions . 8
5.1 General . 8
5.2 Fundamental requirements . 8
5.3 Robustness . 8
5.4 Planning . 9
5.5 Durability, maintenance and inspection . 9
5.6 Hazards .10
5.7 Design basis .10
5.8 Service requirements .10
5.9 Operating requirements.11
5.10 Special requirements .11
5.11 Location and orientation .11
5.12 Structural configuration .12
5.13 Environmental conditions .14
5.14 Construction and deployment .18
5.15 Decommissioning and removal .18
6 Exposure levels.18
6.1 General .18
6.2 Life-safety categories .19
6.3 Consequence categories .20
6.4 Determination of exposure level .21
7 Limit states design .22
7.1 Limit states .22
7.2 Design .23
8 Basic variables .24
8.1 General .24
8.2 Actions .24
8.3 Resistances .26
9 Partial factor design approach .27
9.1 Principles .27
9.2 Actions and their combinations .28
9.3 Properties of materials and soils .30
9.4 Geometric parameters .31
9.5 Uncertainties of calculation models .31
9.6 Values for partial factors.31
9.7 Structural reliability analysis .32
10 Models and analysis .32
11 Quality management .33
11.1 General .33
11.2 Responsibilities .34
11.3 Quality management system .34
11.4 Quality control plan .34
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SIST EN ISO 19900:2014
ISO 19900:2013(E)

11.5 Installation inspection .35
11.6 In-service inspection, maintenance and repair .35
11.7 Records and documentation .36
12 Assessment of existing structures .37
12.1 General .37
12.2 Condition assessment .38
12.3 Action assessment .39
12.4 Resistance assessment .39
12.5 Component and system failure consequences and mitigation .39
12.6 Fatigue .39
12.7 Mitigation.39
Annex A (informative) Additional information and guidance .40
Bibliography .47
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SIST EN ISO 19900:2014
ISO 19900:2013(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 19900 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries, Subcommittee SC 7, Offshore structures.
This second edition cancels and replaces the first edition (ISO 19900:2002), which has been technically
revised.
ISO 19900 is one of a series of standards for offshore structures. The full series consists of the following
International Standards:
— ISO 19900, Petroleum and natural gas industries — General requirements for offshore structures
— ISO 19901 (all parts), Petroleum and natural gas industries — Specific requirements for offshore
structures
— ISO 19902, Petroleum and natural gas industries — Fixed steel offshore structures
— ISO 19903, Petroleum and natural gas industries — Fixed concrete offshore structures
— ISO 19904 (all parts), Petroleum and natural gas industries — Floating offshore structures
— ISO 19905 (all parts), Petroleum and natural gas industries — Site-specific assessment of mobile
offshore units
— ISO 19906, Petroleum and natural gas industries — Arctic offshore structures
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SIST EN ISO 19900:2014
ISO 19900:2013(E)

Introduction
The series of International Standards applicable to types of offshore structure, ISO 19900 to ISO 19906,
constitutes a common basis covering those aspects that address design requirements and assessments
of all offshore structures used by the petroleum and natural gas industries worldwide. Through their
application, the intention is to achieve reliability levels appropriate for manned and unmanned offshore
structures, whatever the nature or combination of the materials used.
It is important to recognize that structural integrity is an overall concept comprising models for
describing actions, structural analyses, design rules, safety elements, workmanship, quality control
procedures and national requirements, all of which are mutually dependent. The modification of one
aspect of design in isolation can disturb the balance of reliability inherent in the overall concept or
structural system. The implications involved in modifications, therefore, need to be considered in
relation to the overall reliability of all offshore structural systems.
The offshore structures International Standards are intended to provide wide latitude in the choice
of structural configurations, materials and techniques and to allow for innovative solutions. Sound
engineering judgement is, therefore, necessary in the use of these International Standards.
ISO 19900 applies to offshore structures and is in accordance with the principles of ISO 2394. ISO 19900
includes, where appropriate, additional provisions that are specific to offshore structures.
Figure 1 gives a general indication of the relationship among the various International Standards
applicable to types of offshore structure. ISO 19900 is the core of this set.
The ISO 19901 series of parts provides provisions on particular aspects of the design, construction,
and operation of offshore platforms for the petroleum and natural gas industries, whose provisions can
be applicable to platforms of different types, materials and operating environments. ISO 19901-7 has
specific relevance to floating structures.
In addition to the relationship among the specific provisions of the parts of ISO 19901 and the International
Standards for bottom-founded, floating, or Arctic structures, there is also some interdependence among
these latter International Standards, in that one International Standard can reference the design
provisions of one of the other International Standards in this set. Users need to be aware of these cross-
references when using any member of this set of International Standards.
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SIST EN ISO 19900:2014
ISO 19900:2013(E)

Figure 1 — Relationship among standards
© ISO 2013 – All rights reserved vii

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SIST EN ISO 19900:2014

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SIST EN ISO 19900:2014
INTERNATIONAL STANDARD ISO 19900:2013(E)
Petroleum and natural gas industries — General
requirements for offshore structures
1 Scope
This International Standard specifies general principles for the design and assessment of offshore
structures subjected to known or foreseeable types of actions. These general principles are applicable
worldwide to all types of offshore structures, including, bottom-founded structures as well as floating
structures, and to all types of materials used including steel, concrete and aluminium.
This International Standard specifies design principles that are applicable to:
— the successive stages in the construction of the structure (i.e. fabrication, transportation and
installation);
— use during its intended life; and
— its decommissioning.
The principles are also generally applicable to the assessment or modification of existing structures.
Aspects related to quality control are also addressed.
This International Standard is applicable to the design of complete structures, including substructures,
topsides structures, vessel hulls, foundations and mooring systems.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 2394:1998, General principles on reliability for structures
ISO 19901-1, Petroleum and natural gas industries — Specific requirements for offshore structures —
Part 1: Metocean design and operating considerations
ISO 19901-2, Petroleum and natural gas industries — Specific requirements for offshore structures —
Part 2: Seismic design procedures and criteria
ISO 19901-4, Petroleum and natural gas industries — Specific requirements for offshore structures —
Part 4: Geotechnical and foundation design considerations
ISO 19901-5, Petroleum and natural gas industries — Specific requirements for offshore structures —
Part 5: Weight control during engineering and construction
ISO 19901-6, Petroleum and natural gas industries — Specific requirements for offshore structures —
Part 6: Marine operations
ISO 19901-7, Petroleum and natural gas industries — Specific requirements for offshore structures —
Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units
ISO 19906, Petroleum and natural gas industries — Arctic offshore structures
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
© ISO 2013 – All rights reserved 1

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SIST EN ISO 19900:2014
ISO 19900:2013(E)

3.1
abnormal value
design value of a parameter of abnormal severity used in accidental limit state checks in which a
structure is intended not to suffer complete loss of integrity
Note 1 to entry: Abnormal events are typically accidental and environmental (including seismic) events having
−3 −4
probabilities of exceedance of the order of 10 to 10 per annum.
3.2
accidental situation
design situation involving exceptional conditions of the structure or its exposure
EXAMPLE Impact, fire, explosion, loss of intended differential pressure.
3.3
action
external load applied to the structure (direct action) or an imposed deformation or acceleration (indirect
action)
EXAMPLE An imposed deformation can be caused by fabrication tolerances, differential settlement,
temperature change or moisture variation.
Note 1 to entry: An earthquake typically generates imposed accelerations.
3.4
action effect
effect of actions on structural components
EXAMPLE Internal force, moment, stress or strain.
3.5
air gap
clearance between the highest water or ice surface that occurs during the extreme environmental
conditions and the lowest exposed part not designed to withstand wave or ice impingement
3.6
appurtenance
part of the structure that is installed to assist installation, to provide access or protection
3.7
basic variable
one of a specified set of variables representing physical quantities which characterize actions,
environmental influences, geometric quantities, or material properties, including soil properties
3.8
calibration
process used to determine partial factors using structural reliability analysis and target reliabilities
3.9
catenary mooring
mooring system where the restoring action is provided by the distributed weight of mooring lines
3.10
characteristic value
value assigned to a basic variable associated with a prescribed probability of not being violated by
unfavourable values during some reference period
Note 1 to entry: The characteristic value is the main representative value. In some design situations, a variable
can have two characteristic values, an upper and a lower value.
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SIST EN ISO 19900:2014
ISO 19900:2013(E)

3.11
compliant structure
structure that is sufficiently flexible that applied lateral dynamic actions are substantially balanced by
inertial reactions
3.12
conductor
tubular pipe extending upward from or beneath the sea floor containing pipes that extend into the
petroleum reservoir
3.13
consequence category
classification system for identifying the environmental, economic, and indirect personnel safety
consequences of failure of a platform
3.14
decommissioning
process of shutting down a platform and removing it from its current location at the end of its service
life
...