SIST EN ISO 13628-5:2010

SLOVENSKI STANDARD
01-februar-2010
,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD1DþUWRYDQMHLQGHORYDQMH
SRGYRGQLKSURL]YRGQLKVLVWHPRYGHO&HQWUDOQLSRGYRGQLNDEOL,62

Petroleum and natural gas industries - Design and operation of subsea production
systems - Part 5: Subsea umbilicals (ISO 13628-5:2009)
Erdöl- und Erdgasindustrie - Konstruktion und Betrieb von Unterwasser-
Produktionssystemen - Teil 5: Unterwasser-Versorgungskabel (ISO 13628-5:2009)
Industries du pétrole et du gaz naturel - Conception et exploitation des systèmes de
production immergés - Partie 5: Faisceaux de câbles immergés (ISO 13628-5:2009)
Ta slovenski standard je istoveten z: EN ISO 13628-5:2009
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 13628-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2009
ICS 75.180.10
English Version
Petroleum and natural gas industries - Design and operation of
subsea production systems - Part 5: Subsea umbilicals (ISO
13628-5:2009)
Industries du pétrole et du gaz naturel - Conception et Erdöl- und Erdgasindustrie - Konstruktion und Betrieb von
exploitation des systèmes de production immergés - Partie Unterwasser-Produktionssystemen - Teil 5: Unterwasser-
5: Faisceaux de câbles immergés (ISO 13628-5:2009) Versorgungskabel (ISO 13628-5:2009)
This European Standard was approved by CEN on 18 November 2009.

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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13628-5:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 13628-5:2009) 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 2010, and conflicting national standards shall be withdrawn at
the latest by June 2010.
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.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 13628-5:2009 has been approved by CEN as a EN ISO 13628-5:2009 without any
modification.
INTERNATIONAL ISO
STANDARD 13628-5
Second edition
2009-12-15
Petroleum and natural gas industries —
Design and operation of subsea
production systems —
Part 5:
Subsea umbilicals
Industries du pétrole et du gaz naturel — Conception et exploitation des
systèmes de production immergés —
Partie 5: Faisceaux de câbles immergés

Reference number
ISO 13628-5:2009(E)
©
ISO 2009
ISO 13628-5:2009(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
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
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.

©  ISO 2009
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. + 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 2009 – All rights reserved

ISO 13628-5:2009(E)
Contents Page
Foreword .vi
Introduction.vii
1 Scope.1
2 Normative references.1
3 Terms, abbreviated terms and definitions.3
3.1 Terms and definitions .3
3.2 Abbreviated terms .10
4 Functional requirements.11
4.1 General requirements .11
4.2 Project-specific requirements.12
5 Safety, design and testing philosophy.12
5.1 Application .12
5.2 Safety objective .12
5.3 Systematic review .12
5.4 Fundamental requirements .12
5.5 Design philosophy .13
5.6 Testing.14
6 Design requirements.16
6.1 General .16
6.2 Loads .16
6.3 Load effect analysis .20
6.4 Installation analysis .26
6.5 Fatigue life.27
7 Component design, manufacture and test .27
7.1 General .27
7.2 Electric cables .28
7.3 Hoses.38
7.4 Optical-fibre cable .49
7.5 Metallic tubes.54
8 Terminations and ancillary equipment design.71
8.1 Design principles.71
8.2 Design process.71
8.3 Armour terminations .71
8.4 Tube and hose terminations.72
8.5 Cable terminations .72
8.6 Pull-in head .73
8.7 Topside hang-off .73
8.8 Subsea termination interface .74
8.9 Subsea umbilical termination .74
8.10 Bend restrictors.74
8.11 Bend stiffeners .75
8.12 Ancillary equipment .75
9 Umbilical design .78
9.1 Temperature range .78
9.2 Maximum tensile load .78
9.3 Ultimate tensile load.78
9.4 Minimum bend radius .78
ISO 13628-5:2009(E)
9.5 Cross-sectional arrangement.78
9.6 Lay-up .79
9.7 Sub-bundles .79
9.8 Inner sheath.79
9.9 Armouring.79
9.10 Outer sheath.80
9.11 Length marking.80
10 Umbilical manufacture and test .80
10.1 Umbilical manufacture .80
10.2 Qualification and verification tests.83
11 Factory acceptance tests.84
11.1 General.84
11.2 Visual and dimensional inspection.84
11.3 Electrical continuity at the termination .84
11.4 Trial termination fit-up.84
11.5 Electric cable.84
11.6 Optical fibre cables.85
11.7 Hoses .85
11.8 Tubes .86
11.9 Terminations .86
11.10 Continuity check.86
12 Storage.86
12.1 General.86
12.2 Protection of unterminated umbilical components.86
12.3 Spare length .87
12.4 Repair kits.87
12.5 Handling for integration tests.87
13 Pre-installation activity .87
13.1 Umbilical information .87
13.2 Route information.88
13.3 Terminations and ancillary equipment information.88
13.4 Host facility information.89
13.5 Subsea structure information.89
13.6 Host facility visit .89
14 Load-out.90
14.1 General.90
14.2 Technical audit of load-out facilities.90
14.3 Load-out procedure.91
14.4 Pre-load-out meetings.91
14.5 Pre-load-out tests .91
14.6 Load-out operation .92
14.7 Stopping and starting the load-out.93
14.8 Handling of the umbilical .93
14.9 Load-out monitoring.94
14.10 Load-out on a reel or carousel .94
14.11 Post-load-out tests .95
15 Installation operations .95
15.1 General.95
15.2 Requirements for installation vessel and equipment .95
15.3 Pre-installation survey .96
15.4 I-tube or J-tube pull-in operations .97
15.5 Lay-down of subsea termination (first end).100
15.6 Lay route.100
15.7 Handling requirements for the main lay.100
15.8 Vessel positioning to achieve required touch-down .101
15.9 Control and monitoring of length laid .101
15.10 Integrity monitoring during lay.102
iv © ISO 2009 – All rights reserved

ISO 13628-5:2009(E)
15.11 Burial operations .103
15.12 Approach to subsea termination position (second end).104
15.13 Lay-down of subsea termination .104
15.14 Pull-in of subsea termination .105
15.15 Pipeline crossings.105
15.16 Buoyancy attachments .106
15.17 Arming of the weak link .106
15.18 Post-lay survey.106
15.19 Post-burial survey .106
15.20 Post-pull-in test .107
15.21 Post-hook-up test .107
15.22 Retrieval of installation aids.108
15.23 Contingencies.108
15.24 Repairs.108
15.25 Post-installation survey.108
Annex A (informative) Information that should be provided in a purchaser's functional
specification.109
Annex B (informative) Umbilical testing .116
Annex C (informative) Hose and tube preferred sizes .120
Annex D (normative) Characterization tests for hoses and umbilicals .121
Annex E (informative) Fatigue testing .125
Annex F (informative) Load-effect analysis.127
Annex G (informative) Umbilical full-scale tests.139
Annex H (informative) Tube material matrix.145
Annex I (informative) Tube-wall thickness example calculation.157
Annex J (informative) Buckling of metallic tubes.164
Bibliography.167

ISO 13628-5:2009(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 13628-5 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries, Subcommittee SC 4, Drilling and production
equipment.
This second edition cancels and replaces the first edition (ISO 13628-5:2002), which has been technically
revised.
ISO 13628 consists of the following parts, under the general title Petroleum and natural gas industries —
Design and operation of subsea production systems:
⎯ Part 1: General requirements and recommendations
⎯ Part 2: Unbonded flexible pipe systems for subsea and marine applications
⎯ Part 3: Through flowline (TFL) systems
⎯ Part 4: Subsea wellhead and tree equipment
⎯ Part 5: Subsea umbilicals
⎯ Part 6: Subsea production control systems
⎯ Part 7: Completion/workover riser systems
⎯ Part 8: Remotely Operated Vehicle (ROV) interfaces on subsea production systems
⎯ Part 9: Remotely Operated Tool (ROT) intervention systems
⎯ Part 10: Specification for bonded flexible pipe
⎯ Part 11: Flexible pipe systems for subsea and marine applications
A Part 12, dealing with dynamic production risers, a Part 13, dealing with remotely operated tool and
interfaces on subsea production systems, a Part 15, dealing with subsea structures and manifolds, a Part 16,
dealing with specification for flexible pipe ancillary equipment, and a Part 17, dealing with recommended
practice for flexible pipe ancillary equipment, are under development.
vi © ISO 2009 – All rights reserved

ISO 13628-5:2009(E)
Introduction
This part of ISO 13628 is based on the first edition of ISO 13628-5, which was based on API Spec 17E,
second edition and API RP 17I, first edition. The first edition of ISO 13628-5 was adopted by API as API
Spec 17E, third edition. It is intended that API Spec 17E, fourth edition, will be identical to this International
Standard.
It is important that users of this part of ISO 13628 be aware that further or differing requirements can be
needed for individual applications. This part of ISO 13628 is not intended to inhibit a vendor from offering, or
the purchaser from accepting, alternative equipment engineering solutions for the individual application. This
can be particularly applicable if there is innovative or developing technology. If an alternative is offered, it is
the responsibility of the vendor to identify any variations from this part of ISO 13628 and provide details.
In this part of ISO 13628, where practical, US Customary (USC) and other units are included in parentheses
for information.
INTERNATIONAL STANDARD ISO 13628-5:2009(E)

Petroleum and natural gas industries — Design and operation
of subsea production systems —
Part 5:
Subsea umbilicals
1 Scope
This part of ISO 13628 specifies requirements and gives recommendations for the design, material selection,
manufacture, design verification, testing, installation and operation of umbilicals and associated ancillary
equipment for the petroleum and natural gas industries. Ancillary equipment does not include topside
hardware. Topside hardware refers to any hardware that is not permanently attached to the umbilical, above
the topside hang-off termination.
This part of ISO 13628 applies to umbilicals containing components, such as electrical cables, optical fibres,
thermoplastic hoses and metallic tubes, either alone or in combination.
This part of ISO 13628 applies to umbilicals for static or dynamic service, with surface-surface, surface-
subsea and subsea-subsea routings.
This part of ISO 13628 does not apply to the associated component connectors, unless they affect the
performance of the umbilical or that of its ancillary equipment.
This part of ISO 13628 applies only to tubes with the following dimensions: wall thickness, t < 6 mm, internal
diameter, ID < 50,8 mm (2 in). Tubular products greater than these dimensions can be regarded as
pipe/linepipe and it is expected that they be designed and manufactured according to a recognised
pipeline/linepipe standard.
This part of ISO 13628 does not apply to a tube or hose rated lower than 7 MPa (1 015 psi).
This part of ISO 13628 does not apply to electric cable voltage ratings above standard rated voltages
UU/(U ) = 3,6/6(7,2) kV rms, where U , U and U are as defined in IEC 60502-1 and IEC 60502-2.
m
0m 0
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 527 (all parts), Plastics — Determination of tensile properties
ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing
ISO 4080, Rubber and plastics hoses and hose assemblies — Determination of permeability to gas
ISO 4406, Hydraulic fluid power — Fluids — Method for coding the level of contamination by solid particles
ISO 4672:1997, Rubber and plastics hoses — Sub-ambient temperature flexibility tests
ISO 13628-5:2009(E)
ISO 6801, Rubber or plastics hoses — Determination of volumetric expansion
ISO 6803:2008, Rubber or plastics hoses and hose assemblies — Hydraulic-pressure impulse test without
flexing
ISO 7751, Rubber and plastics hoses and hose assemblies — Ratios of proof and burst pressure to design
working pressure
ISO 13628-8, Petroleum and natural gas industries — Design and operation of subsea production systems —
Part 8: Remotely Operated Vehicle (ROV) interfaces on subsea production systems
ISO 8308, Rubber and plastics hoses and tubing — Determination of transmission of liquids through hose and
tubing walls
IEC 60228, Conductors of insulated cables
IEC 60502-1, Power cables with extruded insulation and their accessories for rated voltages from 1 kV
(U = 1,2 kV) up to 30 kV (U = 36 kV) — Part 1: Cables for rated voltages of 1 kV (U = 1,2 kV) and 3 kV
m m m
(U = 3,6 kV)
m
IEC 60502-2, Power cables with extruded insulation and their accessories for rated voltages from 1 kV
(U = 1,2 kV) up to 30 kV (U = 36 kV) — Part 2: Cables for rated voltages from 6 kV (U = 7,2 kV) up to
m m m
30 kV (U = 36 kV)
m
IEC 60793-1-1, Optical fibres — Part 1-1: Measurement methods and test procedures — General and
guidance
IEC 60793-2, Optical fibres — Part 2: Product specifications — General
IEC 60794-1-1, Optical fibre cables — Part 1-1: Generic specification — General
IEC 60794-1-2, Optical fibre cables — Part 1-2: Generic specification — Basic optical cable test procedures
EN 10204:2004, Metallic products — Types of inspection documents
ASTM A240, Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and
Strip for Pressure Vessels and for General Applications
ASTM A370, Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A480, Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting
Steel Plate, Sheet, and Strip
ASTM A789/A789M, Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel
Tubing for General Service
ASTM A1016/A1016M-04A, Standard Specification for General Requirements for Ferritic Alloy Steel,
Austenitic Alloy Steel and Stainless Steel Tubes
ASTM E8/E8M, Standard Test Methods for Tension Testing of Metallic Materials
ASTM E92, Standard Test Method for Vickers Hardness of Metallic Materials
ASTM E213, Standard Practice for Ultrasonic Examination of Metal Pipe And Tubing
ASTM E273, Standard Practice for Ultrasonic Examination of the Weld Zone of Welded Pipe and Tubing
ASTM E309, Standard Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic
Saturation
2 © ISO 2009 – All rights reserved

ISO 13628-5:2009(E)
ASTM E384, Standard Test Method for Microindentation Hardness of Materials
ASTM E426, Standard Practice for Electromagnetic (Eddy-Current) Examination of Seamless and Welded
Tubular Products, Austenitic Stainless Steel and Similar Alloys
ASTM E562, Standard Test Method for Determining Volume Fraction by Systematic Manual Point Count
ASTM E1001, Standard Practice for Detection and Evaluation of Discontinuities by the Immersed Pulse-Echo
Ultrasonic Method Using Longitudinal Waves
ASTM E1245, Standard Practice for Determining the Inclusion or Second-Phase Constituent Content of
Metals by Automatic Image Analysis
ASTM G48-03, Standard Test Methods for Pitting And Crevice Corrosion Resistance of Stainless Steels and
Related Alloys by Use of Ferritic Chloride Solution
BS 5099, Electric cables. Voltage levels for spark testing
ITU-T G.976, Test methods applicable to optical fibre submarine cable systems
3 Terms, abbreviated terms and definitions
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
allowable bend radius
minimum radius to which an umbilical, at a given tension, may be bent to without infringing design criteria or
suffering loss of performance
See Figure 1.
NOTE 1 The bend radius is measured to the centreline of the umbilical.
NOTE 2 Allowable bend radius increases with increasing tensile load and varies depending on internal pressure and
condition, i.e. safety level.
3.1.2
allowable tensile load
maximum tensile load that an umbilical, at a given bend radius, can be loaded to without infringing design
criteria or suffering loss of performance
See Figure 1.
NOTE Allowable tensile load decreases with decreasing bend radius and will vary depending on internal pressure
and condition, i.e. safety level.
3.1.3
ancillary equipment
accessory to the umbilical system that does not form part of the main functional purpose
EXAMPLES Weak link, buoyancy attachments, I-tube or J-tube seals, VIV strakes, centralizers, anchors external
clamps.
ISO 13628-5:2009(E)
3.1.4
bend restrictor
device for limiting the bend radius of the umbilical by mechanical means
NOTE A bend restrictor typically is comprised of a series of interlocking metallic or moulded rings, applied over the
umbilical. It is sometimes referred to as a bend strain reliever (BSR).
3.1.5
bend stiffener
device for providing a localized increase in bending stiffness, preserving the minimum bend radius of the
umbilical under defined bending moment conditions
NOTE The stiffener is usually a moulded device, sometimes reinforced, depending on the required duty, applied over
the umbilical. It is sometimes referred to as a bend strain reliever (BSR).
3.1.6
bird-caging
phenomenon whereby armour wires locally rearrange with an increase and/or decrease in pitch-circle
diameter as a result of accumulated axial and radial stresses in the armour layer(s)
3.1.7
bundle
laid-up functional components and associated fillers in the umbilical prior to further processing
NOTE Typical functional components in a bundle include hoses, tubes, electric cables, optical fibre cables.
3.1.8
capacity curve
curve that defines the relationship between the allowable bend radius and allowable tension for an internal
pressure condition
See Figure 1.
NOTE Curves can, therefore, differ for storage, testing, installation and operation scenarios.
4 © ISO 2009 – All rights reserved

ISO 13628-5:2009(E)
Key
X inverse of the normalized bend radius, MBR per radius
Y normalized allowable tensile load, tension per MTL
1 maximum tensile load (MTL) with no bending
2 increasing pressure and/or increasing safety level
3 inverse of minimum bend radius (MBR) with no tension
NOTE 1 Increasing the level of safety generally increases the allowable bend radius and decreases the allowable
tensile load, i.e. moves the capacity curves towards origin.
NOTE 2 Increasing the internal pressure generally increases the allowable bend radius and decreases the allowable
tensile load, i.e. moves the capacity curves towards origin.
Figure 1 — Capacity curves
3.1.9
carousel
storage container that can be rotated by a drive about a vertical axis
3.1.10
caterpillar
device that holds the umbilical between belts or pads and which transfers axial linear motive power to the
umbilical
NOTE A caterpillar is also known as an in-line cable engine, or haul off, or tensioner.
3.1.11
characterization data
data relating to a component or an umbilical giving an indication of performance but not giving specific
acceptance/rejection criteria
3.1.12
chinese finger
type of gripper used to hold the umbilical via its outer diameter, comprised of a number of spirally interwoven
wires or synthetic rope attached to a built-in anchorage arrangement
ISO 13628-5:2009(E)
3.1.13
core
generic term used to describe an individual electrically insulated conductor
3.1.14
crab lay
installation deployment activity whereby the installation vessel moves sideways along, or at the end of, the
installation route
3.1.15
crushing load
load that acts in the radial direction that might not be evenly distributed along the circumference and that is
limited in length along the umbilical
NOTE A crushing load is typically induced during installation.
3.1.16
deep water
water depth generally ranging from 610 m (2 000 ft) to 1 830 m (6 000 ft)
3.1.17
design life
service life multiplied by an appropriate factor that is equal to, or greater than, one
3.1.18
design working pressure
DWP
maximum working pressure at which a hose or tube is rated for continuous operation
3.1.19
design tensile load
maximum tensile load multiplied by an appropriate factor that is equal to, or less than, one
3.1.20
end termination
mechanical fitting that is attached to the end of an umbilical and that provides a means of transferring
installation and operating loads, fluid and electrical services to a mating assembly mounted on the subsea
facility or surface facility
3.1.21
factory acceptance test
series of tests carried out on the completed umbilical component or complete umbilical to demonstrate the
integrity of the item under test
3.1.22
filler
item wholly or partially filling the voids between the functional components (3.1.23) with the purpose(s) of
maintaining the relative location of the components, maintaining the shape of the cross-section, influencing
the weight-to-diameter ratio, separating components for wear considerations, or providing a certain radial
stiffness
3.1.23
functional component
hoses, tubes, electric/optical fibre cables included within an umbilical which are required to fulfil the
operational service needs
6 © ISO 2009 – All rights reserved

ISO 13628-5:2009(E)
3.1.24
functional specification
document that specifies the totality of needs expressed by features, characteristics, process conditions,
boundaries and exclusions defining the performance of a product or service including quality assurance
requirements
3.1.25
host facility
fixed or floating facility to which the umbilical is mechanically and functionally connected and that provides the
functions and services transmitted through the umbilical
EXAMPLES Platform, buoy, floating production system.
3.1.26
hydrogen scavenger
gel material applied inside the tube (metal or polymer) holding the optical fibre to absorb hydrogen ions that
prevent fibre from “darkening” and from reducing transmission capabilities
3.1.27
independent verification ag
...