SIST EN ISO 20519:2017

SLOVENSKI STANDARD
SIST EN ISO 20519:2017
01-junij-2017
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XWHNRþLQMHQL]HPHOMVNLSOLQ,62
Ships and marine technology - Specification for bunkering of liquefied natural gas fuelled
vessels (ISO 20519:2017)
Schiff- und Meerestechnik - Spezifikation für das Bunkern flüssigerdgasbetriebener
Schiffe (ISO 20519:2017)
Navires et technologie maritime - Spécification pour le soutage des navires fonctionnant
au gaz naturel liquéfié (ISO 20519:2017)
Ta slovenski standard je istoveten z: EN ISO 20519:2017
ICS:
47.020.99 Drugi standardi v zvezi z Other standards related to
ladjedelništvom in shipbuilding and marine
konstrukcijami na morju structures
75.060 Zemeljski plin Natural gas
SIST EN ISO 20519:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 20519:2017

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SIST EN ISO 20519:2017


EN ISO 20519
EUROPEAN STANDARD

NORME EUROPÉENNE

February 2017
EUROPÄISCHE NORM
ICS 47.020.99; 75.200
English Version

Ships and marine technology - Specification for bunkering
of liquefied natural gas fuelled vessels (ISO 20519:2017)
Navires et technologie maritime - Spécification pour le Schiff- und Meerestechnik - Spezifikation für das
soutage des navires fonctionnant au gaz naturel Bunkern flüssigerdgasbetriebener Schiffe (ISO
liquéfié (ISO 20519:2017) 20519:2017)
This European Standard was approved by CEN on 5 February 2017.

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, Serbia, 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
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20519:2017 E
worldwide for CEN national Members.

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SIST EN ISO 20519:2017
EN ISO 20519:2017 (E)
Contents Page
European foreword . 3
2

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SIST EN ISO 20519:2017
EN ISO 20519:2017 (E)
European foreword
This document (EN ISO 20519:2017) has been prepared by Technical Committee ISO/TC 8 "Ships and
marine technology" in collaboration with Technical Committee CEN/TC 282 “Installation and
equipment for LNG” 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 August 2017, and conflicting national standards shall
be withdrawn at the latest by August 2017.
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 has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 20519:2017 has been approved by CEN as EN ISO 20519:2017 without any modification.

3

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SIST EN ISO 20519:2017

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SIST EN ISO 20519:2017
INTERNATIONAL ISO
STANDARD 20519
First edition
2017-02
Ships and marine technology —
Specification for bunkering of
liquefied natural gas fuelled vessels
Navires et technologie maritime — Spécification pour le soutage des
navires fonctionnant au gaz naturel liquéfié
Reference number
ISO 20519:2017(E)
©
ISO 2017

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SIST EN ISO 20519:2017
ISO 20519:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, 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 2017 – All rights reserved

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SIST EN ISO 20519:2017
ISO 20519:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms . 5
5 Transfer system design requirements . 5
5.1 Vessel requirements . 5
5.2 Facility requirements . 6
5.3 Transfer equipment requirements . 6
5.4 Emergency shutdown and release systems . 6
5.5 Specific requirements . 8
5.5.1 System support . . 8
5.5.2 Hoses, corrugated metallic or composite . 8
5.5.3 Transfer arms . 8
5.5.4 Bunkering connections . . 8
5.5.5 Dry-disconnect/connect coupling . 9
5.5.6 Insulation flange . . 9
5.5.7 Fall arrest. 9
5.6 Identification of transfer equipment .10
5.7 Transfer system design analysis .10
5.8 Maintenance .11
5.9 Maintenance manual .11
6 LNG bunkering processes and procedures .11
6.1 Mooring .11
6.2 Communication in preparation for a transfer .11
6.3 Risk assessments.13
6.3.1 General.13
6.3.2 Risk assessment . .13
6.3.3 Conditions considered .13
6.3.4 Assessment methodology .13
6.3.5 Acceptable bunkering parameters .14
6.4 Vessel safety assessments .14
6.5 Transfer procedures .14
7 Management system/quality assurance .16
7.1 Management systems .16
7.2 Management systems for transfer equipment manufacturers .16
8 Personnel training .16
8.1 Vessel personnel training requirements .16
8.2 Additional training requirements for personnel involved in bunkering operations
on vessels .16
8.2.1 General.16
8.2.2 Personnel providing LNG from port or mobile facilities training .16
8.3 Documentation of training .16
9 Records and documentation .17
Annex A (normative) LNG bunker checklists .18
Annex B (normative) Risk assessment and controlled zones .30
Annex C (informative) Illustrations .36
Bibliography .39
© ISO 2017 – All rights reserved iii

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SIST EN ISO 20519:2017
ISO 20519:2017(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www . i so .org/ iso/ foreword .html.
The committee responsible for this document is ISO/TC 8, Ships and marine technology.
iv © ISO 2017 – All rights reserved

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SIST EN ISO 20519:2017
ISO 20519:2017(E)

Introduction
This document has been produced to meet an industry need identified by the International Maritime
Organization (IMO). This document has been designed to support the IMO International Code of Safety
for Ships using Gases or other Low-flashpoint Fuels (IGF Code).
Due to numerous economic and environmental factors, the use of liquefied natural gas (LNG) as a
vessel’s fuel has increased. While LNG fuelled ships and vessels have been in service for over 10 years,
most of these vessels have operated within small defined areas using LNG bunkering operations
designed for that particular vessel service. The increase in LNG fuelled vessels corresponds with an
increase in the number of the regions that these vessels will service. Therefore, there is a need to
standardize LNG bunkering operations internationally to a reasonable degree so that vessel operators
will have the tools to select vessel fuel providers that meet set safety and fuel quality standards and LNG
bunkering operations will be conducted safely. This document can be used for both vessels involved in
international and domestic service regardless of size.
This document does not replace existing laws or regulations. It is flexible so that it can be applied in
many situations and under various regulatory regimes as long as the requirements of this document
are met. If, however, local regulations preclude its use and do not provide the safety specified in this
document, compliance with this document should not be claimed.
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SIST EN ISO 20519:2017

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SIST EN ISO 20519:2017
INTERNATIONAL STANDARD ISO 20519:2017(E)
Ships and marine technology — Specification for
bunkering of liquefied natural gas fuelled vessels
1 Scope
This document sets requirements for LNG bunkering transfer systems and equipment used to bunker
LNG fuelled vessels, which are not covered by the IGC Code. This document includes the following five
elements:
a) hardware: liquid and vapour transfer systems;
b) operational procedures;
c) requirement for the LNG provider to provide an LNG bunker delivery note;
d) training and qualifications of personnel involved;
e) requirements for LNG facilities to meet applicable ISO standards and local codes.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 16904, Petroleum and natural gas industries — Design and testing of LNG marine transfer arms for
conventional onshore terminals
ASME B16.5, Pipe flanges and flanged fittings: NPS 1/2 through NPS 24 metric/inch standard
BS 4089, Specification for metallic hose assemblies for liquid petroleum gases and liquefied natural gases
EN 1474-2, Installation and equipment for liquefied natural gas — Design and testing of marine transfer
systems — Design and testing of transfer hose
EN 1474-3, Installation and equipment for liquefied natural gas — Design and testing of marine transfer
systems — Offshore transfer systems
EN 12434, Cryogenic vessels — Cryogenic flexible hoses
IEC 60079-10-1, Explosive atmospheres — Part 10-1: Classification of areas — Explosive gas atmospheres
IMO International Code of Safety for Ships using Gases or other Low-flashpoint Fuels (IGF Code)
IMO International Code of the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk
(IGC Code)
Oil Companies International Marine Forum. Design and Construction Specification for Marine Loading
Arms. Third edition, 1999. London, England: Oil Companies International Marine Forum
Society of International Gas Tanker and Terminal Operators (SIGTTO). ESD Arrangements &
Linked Ship/Shore Systems for Liquefied Gas Carriers [online]. First edition, 2009. Scotland, UK: Witherby
Seamanship International Ltd
© ISO 2017 – All rights reserved 1

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SIST EN ISO 20519:2017
ISO 20519:2017(E)

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
3.1
bunkering
operation of transferring LNG fuel to a vessel (3.22)
Note 1 to entry: For the purposes of this document, it refers to the delivery of LNG only. This document does not
address the transfer of CNG, propane or fuels other than LNG that may be covered by the IGF Code (see 3.2).
3.2
bunkering terminal
fixed operation on or near shore that is not regulated as a vessel (3.22) that can be used to provide LNG
bunkers to a receiving vessel
3.3
classed
classification
process in which the design and condition of a vessel (3.22) is evaluated to determine its compliance
with rules and standards developed by the Classification Society (3.5) issuing the classification
3.4
controlled zones
areas extending from the bunkering manifolds on the LNG receiving vessel and the LNG supply source
during LNG bunkering operations that have restrictions in place
Note 1 to entry: These restrictions include limitation on personnel access, sources of ignition and unauthorized
activities. The controlled zones are subdivided into hazardous zones, safety zones and the monitoring and
security areas as defined in Annex B.
3.5
Classification Society
non-governmental organization that establishes and maintains technical standards for the construction
and operation of ships and offshore structures
Note 1 to entry: They also validate that construction is according to these standards and carry out regular
surveys in service to verify compliance with the standards.
3.6
dry-disconnect
method that reduces LNG (3.10) or natural gas releases into the atmosphere under normal operation to
a negligible amount consistent with safety, either by equipment design or procedural practice
3.7
emergency release (break-away) coupling
ERC
coupling installed on LNG (3.10) and vapour lines, as a component of ERS, to ensure the quick physical
disconnection of the transfer system from the unit to which it is connected, designed to prevent damage
to loading/unloading equipment in the event that the transfer system’s operational envelope and/or
parameters are exceeded beyond a predetermined point
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SIST EN ISO 20519:2017
ISO 20519:2017(E)

3.8
emergency release system
ERS
system that provides a safe shut down, transfer system isolation and quick release of hoses or transfer
arms (3.19) between the facility or vessel (3.22) providing the LNG (3.10), and the vessel receiving the
LNG, preventing product release at disconnection time
Note 1 to entry: The ERS consists of an emergency release coupling (ERC) and interlocked isolating valves which
automatically close on both sides, thereby containing the LNG or vapour in the lines (dry disconnect), and, if
applicable, associated control system.
3.9
emergency shutdown system
ESD
system that safely and effectively stops the transfer of LNG (3.10) and vapour between the facility or
vessel (3.22) providing the LNG and the vessel receiving the LNG or vice versa
Note 1 to entry: The operation of this system can be referred to as an “ESD I”. Vessel ESD systems should not be
confused with other emergency shutdown systems within the terminal or on board vessels.
Note 2 to entry: An informative illustration of an ESD I and ESD II is provided in Figure C.2.
3.10
liquefied natural gas
LNG
natural gas that has been cooled and condensed into liquid form
Note 1 to entry: It is characterized as a cryogenic liquid having a temperature typically around −161 °C under
normal atmospheric pressure.
3.11
lower flammable limit
LFL
concentration of flammable gas or vapour in air below which there is insufficient amount of substance
to support and propagate combustion
3.12
management system
set of procedures an organization needs to follow in order to meet its objectives
3.13
member state authority
legal authority within a member state that has jurisdiction over maritime or port activities within
that state
3.14
mobile facility
mobile facilities are trucks, rail car or other mobile device (including portable tanks) used to transfer
LNG (3.10) to a vessel (3.22)
3.15
monitoring and security area
area around the bunkering facility and vessel (3.22) where vessel traffic and other activities are
monitored to mitigate harmful effects
3.16
recognized organization
competent organization with delegated authority on behalf of an Administration to assist in the uniform
and effective implementation of IMO Codes and Conventions
Note 1 to entry: Adapted from IMO A.739(18).
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SIST EN ISO 20519:2017
ISO 20519:2017(E)

3.17
LNG transfer system
consists of all equipment contained between the bunkering manifold flange on the facility or vessel
(3.22) providing LNG fuel and the bunkering manifold flange on the receiving LNG fuelled vessel
including but not limited to; vessel to vessel transfer arms, LNG transfer arms (articulated rigid piping)
or hoses, emergency release system (ERS) (3.8), insulation flanges; quick connect/disconnect couplings
(QC/DC), and in addition the ESD ship/shore or ship/ship link used to connect the supplying and
receiving ESD systems
Note 1 to entry: An illustration of a typical LNG transfer system is provided in Figure C.1.
3.18
technical standards
standards that prescribe requirements for one or more of the following: operations, equipment
design/fabrications or testing methodology
Note 1 to entry: Auditors cannot issue a certification or approval to a company that claims compliance with a
Technical Standard unless that standard is incorporated into a recognized management system as a management
objective.
3.19
transfer arm
articulated metal transfer system used for transferring LNG (3.10) to the vessel (3.22) being bunkered
Note 1 to entry: It can be referred to as a “loading arm” or “unloading arm”.
3.20
safety zone
area around the bunkering station where only dedicated and essential personnel and activities are
allowed during bunkering (3.1)
3.21
security zone
area established by the national or local authorities around a bunkering facility or area through which
vessel (3.22) and personnel movement is subject to regulatory restrictions
3.22
vessel
includes ships, barges (self-propelled or no propulsion) or boats of any size in domestic or
international service
Note 1 to entry: A bunkering vessel is a vessel used to transport LNG to a vessel using LNG as a fuel.
Note 2 to entry: A receiving vessel is a vessel that uses LNG as a fuel and does not transport LNG as a cargo.
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SIST EN ISO 20519:2017
ISO 20519:2017(E)

4 Abbreviated terms
Term Description Explanation
IGC International Maritime The IGC Code applies to ships involved in the carriage of bulk
Code Organization’s International Code for liquefied gases and prescribes the design and construction
the Construction and standards of ships involved in such carriage and the
Equipment of Ships Carrying equipment they should carry.
Liquefied Gases in Bulk
IGF International Maritime The IGF Code applies to ships fuelled by gases or other
Code Organization’s International Code of low-flashpoint fuels. The Code contains mandatory provisions
Safety for Ships using Gases or other for the arrangement, installation, control and monitoring of
Low-flashpoint Fuels, 2017 machinery, equipment and systems using low-flashpoint fuels.
IACS International Association of An organization that establishes, reviews, promotes and
Classification Societies develops minimum technical requirements in relation to
the design, construction, maintenance and survey of ships
and other marine related facilities; a
...