SIST EN ISO 20519:2022
(Main)Ships and marine technology - Specification for bunkering of liquefied natural gas fuelled vessels (ISO 20519:2021)
Ships and marine technology - Specification for bunkering of liquefied natural gas fuelled vessels (ISO 20519:2021)
This document specifies requirements for LNG bunkering transfer systems and equipment used to
bunker LNG fuelled vessels, which are not covered by the IGC Code. This document is applicable to
vessels involved in international and domestic service regardless of size, and addresses 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.
Schiffe und Meerestechnik - Spezifikation für das Bunkern flüssigerdgasbetriebener Schiffe (ISO 20519:2021)
Dieses Dokument legt Anforderungen für LNG-Bunkerübergabesysteme und Ausrüstung zum Bunkern von LNG-betriebenen Wasserfahrzeugen fest, die nicht durch den IGC-Code abgedeckt sind. Dieses Dokument gilt für Wasserfahrzeuge die im internationalen als auch im nationalen Verkehr zum Einsatz kommen, unabhängig von ihrer Größe und umfasst die folgenden fünf Elemente:
a) Hardware: Flüssigkeits- und Gas-Übergabesysteme;
b) Betriebsweisen;
c) Anforderung an den LNG-Bunkerlieferanten, einen LNG-Bunker-Lieferschein bereitzustellen;
d) Schulung und Qualifikation der beteiligten Mitarbeiter;
e) Anforderungen an LNG-Anlagen zur Einhaltung der geltenden ISO-Normen und örtlichen Vorschriften.
Navires et technologie maritime - Spécification pour le soutage des navires fonctionnant au gaz naturel liquéfié (ISO 20519:2021)
Le présent document établit les exigences applicables aux équipements et systèmes de transfert de GNL utilisés pour le soutage de navires fonctionnant au GNL, qui ne sont pas couverts par le Code IGC. Ce document peut être utilisé à la fois pour les navires participant au transport international et domestique, quelle que soit leur taille et comprend les cinq éléments suivants:
a) matériel: systèmes de transfert de liquide et de vapeur;
b) procédures opérationnelles;
c) exigence pour le fournisseur de GNL de fournir un bon de livraison de soute de GNL;
d) formation et qualifications du personnel intervenant;
e) exigence pour les installations de GNL de respecter les normes ISO et les codes locaux applicables.
Ladjarska in pristaniška tehnologija - Specifikacija za oskrbovanje plovil na utekočinjeni zemeljski plin (ISO 20519:2021)
Ta dokument določa zahteve za oskrbovanje pretakališč in opreme za utekočinjeni zemeljski plin, ki se uporabljajo za oskrbovanje plovil na utekočinjeni zemeljski plin, ki niso zajeta v kodeksu IGC. Ta dokument se uporablja za plovila, ki opravljajo mednarodne in domače prevoze, ne glede na velikost, in obravnava naslednjih
pet elementov:
a) strojna oprema: sistemi za prenos tekočin in hlapov;
b) operativni postopki;
c) zahteva, da dobavitelj utekočinjenega zemeljskega plina predloži potrdilo o dobavi za rezervoar utekočinjenega zemeljskega plina;
d) usposabljanje in kvalifikacije vključenega osebja;
e) zahteve, da objekti za utekočinjeni zemeljski plin izpolnjujejo veljavne standarde ISO in lokalne predpise.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 20519:2022
01-september-2022
Nadomešča:
SIST EN ISO 20519:2017
Ladjarska in pristaniška tehnologija - Specifikacija za oskrbovanje plovil na
utekočinjeni zemeljski plin (ISO 20519:2021)
Ships and marine technology - Specification for bunkering of liquefied natural gas fuelled
vessels (ISO 20519:2021)
Schiffe und Meerestechnik - Spezifikation für das Bunkern flüssigerdgasbetriebener
Schiffe (ISO 20519:2021)
Navires et technologie maritime - Spécification pour le soutage des navires fonctionnant
au gaz naturel liquéfié (ISO 20519:2021)
Ta slovenski standard je istoveten z: EN ISO 20519:2022
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 20519:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 20519:2022
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SIST EN ISO 20519:2022
EN ISO 20519
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2022
EUROPÄISCHE NORM
ICS 47.020.99 Supersedes EN ISO 20519:2017
English Version
Ships and marine technology - Specification for bunkering
of liquefied natural gas fuelled vessels (ISO 20519:2021)
Navires et technologie maritime - Spécification pour le Schiffe und Meerestechnik - Spezifikation für das
soutage des navires fonctionnant au gaz naturel Bunkern flüssigerdgasbetriebener Schiffe (ISO
liquéfié (ISO 20519:2021) 20519:2021)
This European Standard was approved by CEN on 23 February 2022.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, 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: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20519:2022 E
worldwide for CEN national Members.
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SIST EN ISO 20519:2022
EN ISO 20519:2022 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 20519:2022
EN ISO 20519:2022 (E)
European foreword
This document (EN ISO 20519:2022) 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 November 2022, and conflicting national standards
shall be withdrawn at the latest by November 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 20519:2017.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 20519:2021 has been approved by CEN as EN ISO 20519:2022 without any modification.
3
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SIST EN ISO 20519:2022
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SIST EN ISO 20519:2022
INTERNATIONAL ISO
STANDARD 20519
Second edition
2021-12
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 20519:2021(E)
© ISO 2021
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SIST EN ISO 20519:2022
ISO 20519:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
© ISO 2021 – All rights reserved
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SIST EN ISO 20519:2022
ISO 20519:2021(E)
Contents Page
Foreword .v
Introduction . vi
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 Bunker 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 . 9
5.5.4 Bunkering connections . 9
5.5.5 Dry-disconnect/connect coupling . 9
5.5.6 Insulation flange . 10
5.5.7 Fall arrest . 10
5.6 Identification of transfer equipment . 10
5.7 Transfer system design analysis . 11
5.7.1 General . 11
5.7.2 Additional items to be considered to meet the requirements of 5.4.5 . 11
5.8 Maintenance . 11
5.9 Maintenance manual . 12
6 LNG bunkering processes and procedures .12
6.1 Mooring . 12
6.2 Communication in preparation for a transfer .12
6.3 Risk assessments . 13
6.3.1 General .13
6.3.2 Risk assessment . 14
6.3.3 Conditions considered . 14
6.3.4 Assessment methodology . 14
6.3.5 Acceptable bunkering parameters . 14
6.4 Vessel safety assessments . 14
6.5 Bunkering transfer procedures . 15
7 Management system and 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 . 17
8.2.1 General . 17
8.2.2 Personnel providing LNG from port or mobile facilities training . 17
8.3 Documentation of training . 17
9 Records and documentation .17
Annex A (normative) LNG bunker checklists.19
Annex B (informative) Risk assessment and controlled zones .28
iii
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SIST EN ISO 20519:2022
ISO 20519:2021(E)
Annex C (informative) Illustrations of a typical LNG transfer system and
functional diagrams of EDS and ERS subsystems .33
Bibliography .36
iv
© ISO 2021 – All rights reserved
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SIST EN ISO 20519:2022
ISO 20519:2021(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 of the voluntary nature of standards, 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
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 8, Ships and marine technology, in
collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC
282, Installation and Equipment for LNG, in accordance with the Agreement on technical cooperation
between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 20519:2017), which has been technically
revised.
The main changes are as follows:
— in 5.5.5, dry connect and disconnect couplings, if used, are required to meet the applicable
requirements of ISO 21593, however, it is permitted to use, under specified conditions, couplings
manufactured before the publication of ISO 21593;
— in 6.2.2 a), if flowmeters are used to measure LNG being bunkered, the LNG provider to inform the
party receiving the LNG if the flowmeter conforms to ISO 21903.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
v
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SIST EN ISO 20519:2022
ISO 20519:2021(E)
Introduction
This document has been produced to meet an industry need identified by the International Maritime
Organization (IMO). It 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 since the early
2000s, 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 service. Therefore, there is a need to
standardize LNG bunkering operations internationally to a reasonable degree so that vessel operators
have the tools to select vessel fuel providers that meet set safety and fuel quality standards for LNG
bunkering operations to be conducted safely.
This document can be applied in many situations and under various regulatory regimes. Existing
regulations can cover the topics addressed in this document.
vi
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SIST EN ISO 20519:2022
INTERNATIONAL STANDARD ISO 20519:2021(E)
Ships and marine technology — Specification for
bunkering of liquefied natural gas fuelled vessels
1 Scope
This document specifies requirements for LNG bunkering transfer systems and equipment used to
bunker LNG fuelled vessels, which are not covered by the IGC Code. This document is applicable to
vessels involved in international and domestic service regardless of size, and addresses 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
1
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SIST EN ISO 20519:2022
ISO 20519:2021(E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
bunkering
operation of transferring LNG fuel to a vessel (3.24)
Note 1 to entry: For the purposes of this document, it refers to the delivery of LNG (3.12) only. This document
does not address the transfer of CNG, propane or fuels other than LNG that can be covered by the IGF Code
(see Clause 4).
3.2
bunkering terminal
fixed operation on or near shore that is not regulated as a vessel (3.24), and that can be used to provide
LNG bunkers to a receiving vessel
3.3
classification
process in which the design and condition of a vessel (3.24) is evaluated to determine its compliance
with rules and standards developed by the Classification Society (3.4) issuing the classification
3.4
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.
3.5
competent authority
legal authority within a member state that has jurisdiction over maritime or port activities within that
state
3.6
controlled zones
areas extending from the bunkering manifolds on the LNG receiving vessel (3.24) 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 (3.22) and the monitoring and
security areas (3.16) as defined in Annex B.
3.7
dry connection and disconnection
method that reduces LNG (3.12) or natural gas releases into the atmosphere under normal operation to
a negligible amount consistent with safety, either by equipment design or procedural practice
3.8
dry-disconnect/connect coupling
DD/CC
mechanical device used to connect the hose bunkering system to an LNG fuel manifold without
employing bolts
2
© ISO 2021 – All rights reserved
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SIST EN ISO 20519:2022
ISO 20519:2021(E)
3.9
emergency release coupling
ERC
break-away coupling
coupling installed on LNG (3.12) 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
3.10
emergency release system
ERS
system that provides a safe shut down, transfer system isolation and quick release of hoses or transfer
arms (3.21) between the facility or vessel (3.24) providing the LNG (3.12), 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) (3.9) and interlocked isolating valves
that automatically close on both sides, thereby containing the LNG or vapour in the lines (dry disconnect), and, if
applicable, associated control system.
3.11
emergency shutdown system
ESD
system that safely and effectively stops the transfer of LNG (3.12) and vapour between the facility or
vessel (3.24) providing the LNG and the vessel receiving the LNG, or vice versa
3.12
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.
3.13
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
3.14
management system
set of procedures an organization needs to follow in order to meet its objectives
3.15
mobile facility
facility used to transfer LNG (3.12) to a vessel (3.24)
EXAMPLE Trucks, rail car or other mobile devices (including portable tanks).
3.16
monitoring and security area
area around the bunkering facility and vessel (3.24), where vessel traffic and other activities are
monitored to mitigate harmful effects
3.17
nozzle
half part of the coupling, typically mounted on the hose bunkering system of the bunker facility, that
permits dry connection and disconnection (3.7) of the LNG bunkering system to the receptacle (3.18) of
the receiving vessel (3.24) in a safe manner
3
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SIST EN ISO 20519:2022
ISO 20519:2021(E)
3.18
receptacle
half part of the coupling, typically mounted to the manifold flange of the receiving vessel (3.24), that
permits dry connection and disconnection (3.7) in a safe manner
3.19
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).
3.20
LNG transfer system
equipment contained between the bunkering manifold flange on the facility or vessel (3.24) providing
LNG fuel and the bunkering manifold flange on the receiving LNG fuelled vessel, including but not
limited to: vessel to vessel transfer arms (3.21), LNG transfer arms (articulated rigid piping) or hoses,
emergency release system (ERS) (3.10), insulation flanges, dry-disconnect/connect couplings (DD/CC)
(3.8), and in addition the ESD ship/shore or ship/ship link used to connect the supplying and receiving
ESD systems
Note 1 to entry: Illustrations of a typical LNG transfer system and subsystems are provided in Figures C.1 to C.4.
3.21
transfer arm
articulated metal transfer system used for transferring LNG (3.12) to the vessel (3.24) being bunkered
Note 1 to entry: It can be referred to as a “loading arm” or “unloading arm”.
3.22
safety zone
area around the bunkering station where only dedicated and essential personnel and activities are
allowed during bunkering (3.1)
3.23
security zone
area established by the national or local authorities around a bunkering facility or area through which
vessel (3.24) and personnel movement is subject to regulatory restrictions
3.24
vessel
ship, barge (self-propelled or no propulsion) or boat of any size in domestic or international service
Note 1 to entry: A bunkering vessel is a vessel used to transport LNG (3.12) 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
...
SLOVENSKI STANDARD
oSIST prEN ISO 20519:2020
01-december-2020
Ladjarska in pristaniška tehnologija - Specifikacija za oskrbovanje plovil na
utekočinjeni zemeljski plin (ISO/DIS 20519:2020)
Ships and marine technology - Specification for bunkering of liquefied natural gas fuelled
vessels (ISO/DIS 20519:2020)
Schiffe und Meerestechnik - Spezifikation für das Bunkern flüssigerdgasbetriebener
Schiffe (ISO/DIS 20519:2020)
Navires et technologie maritime - Spécification pour le soutage des navires fonctionnant
au gaz naturel liquéfié (ISO/DIS 20519:2020)
Ta slovenski standard je istoveten z: prEN ISO 20519
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
oSIST prEN ISO 20519:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 20519:2020
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oSIST prEN ISO 20519:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 20519
ISO/TC 8 Secretariat: SAC
Voting begins on: Voting terminates on:
2020-11-03 2021-01-26
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
ICS: 47.020.99
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 20519:2020(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
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oSIST prEN ISO 20519:2020
ISO/DIS 20519:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
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oSIST prEN ISO 20519:2020
ISO/DIS 20519:2020(E)
Contents Page
Foreword .v
Introduction .vi
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 Bunker 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 . . 9
5.5.5 Dry-disconnect/connect coupling . 9
5.5.6 Insulation flange . .10
5.5.7 Fall arrest.10
5.6 Identification of transfer equipment .10
5.7 Transfer system design analysis .11
5.7.1 General.11
5.7.2 Additional items to be considered to meet the requirements of 5.4.5 .11
5.8 Maintenance .11
5.9 Maintenance manual .11
6 LNG bunkering processes and procedures .12
6.1 Mooring .12
6.2 Communication in preparation for a transfer .12
6.3 Risk assessments.13
6.3.1 General.13
6.3.2 Risk assessment . .14
6.3.3 Conditions considered .14
6.3.4 Assessment methodology .14
6.3.5 Acceptable bunkering parameters .14
6.4 Vessel safety assessments .14
6.5 Bunkering transfer procedures .15
7 Management s ystem/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 .17
8.2.1 General.17
8.2.2 Personnel providing LNG from port or mobile facilities training .17
8.3 Documentation of training .17
9 Records and documentation .17
Annex A (normative) LNG bunker checklists .19
Annex B (normative) Risk assessment and controlled zones .31
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Annex C (informative) Illustrations .37
Bibliography .40
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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 .iso .org/ iso/ foreword .html.
The committee responsible for this document is ISO/TC 8, Ships and marine technology.
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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 since the early
2000’s, 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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DRAFT INTERNATIONAL STANDARD ISO/DIS 20519:2020(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
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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 https:// 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-connection or disconnection
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
dry-disconnect/connect coupling (DD/CC)
mechanical device used to connect the hose bunkering system to LNG fuel manifold without
employing bolts
3.8
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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3.9
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.
3.10
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.
3.11
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.
3.12
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
3.13
management system
set of procedures an organization needs to follow in order to meet its objectives
3.14
member state authority
legal authority within a member state that has jurisdiction over maritime or port activities within
that state
3.15
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)
3.16
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
3.17
nozzle
half part of the coupling, which typically is mounted on the hose bunkering system of the bunker facility
which permits quick connection and disconnection of LNG bunkering system to the receptacle of the
receiving vessel in a safe manner
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3.18
receptacle
half part of the coupling, which is typically mounted to the manifold flange of the receiving vessel and
which permits quick connection and disconnection in a safe manner
3.19
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).
3.20
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; dry connect/disconnect couplings
(DD/CC), 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.
3.21
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.
3.22
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”.
3.23
safety zone
area around the bunkering station where only dedicated and essential personnel and activities are
allowed during bunkering (3.1)
3.24
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
3.25
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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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 liquefied gases and prescribes the design and construction
for 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 low-flashpoint fuels. The Code contains mandatory provisions
of Safety for Ships using Gases or for the arrangement, installation, control and monitoring of
other Low-flashpoint Fuels, 2017 machinery, equipment and systems using low-flashpoint fuels.
IACS International Association An organization that establishes, reviews, promotes and
of Classification Societies develops minimum technical requirements in relation to
the design, construction, maintenance and survey of ships
and other marine related facilities; and assists international
regulatory bodies and standards organizations to develop,
implement and interpret statutory regulations and industry
standards in ship design, construction and maintenance, with
a view to improving safety at sea and the prevention of marine
pollution.
IMO International Maritime A specialized agency of the United Nations whose purpose is
Organization “to provide machinery for cooperation among governments
in the field of governmental regulation and practices relating
to technical matters of all kinds affecting shipping engaged
in international trade; to encourage and facilitate the general
adoption of the highest practicable standards in matters
concerning efficiency of navigation, and prevention and
control of marine pollution from ships.”
ISM International Safety Management An IMO code that provides an international standard for the
Code safe management and operation of ships and for pollution
prevention.
STCW International Convention on This convention promotes the safety of life and property at sea
Standards of Training, Certification and the protection of the marine environment by establishing
and Watchkeeping for Seafarers in common agreement international standards of training,
certification and watchkeeping for seafarer.
SGMF Society for Gas as a Marine Fuel A non-governmental organization established to promote safe-
ty and industry best practice in the use of gas as a marine fuel.
5 Transfer system design requirements
5.1 Vessel requirements
5.1.1 In order to be compliant with this document, vessels involved shall meet the following
requirements (this applies to vessels of all sizes, in domestic or international service):
5.1.2 Bunkering vessels shall conform with this document and be approved by its Flag State, Recognized
Organization or Classification Society that complies with the applicable uniform interpretations and
requirements posted by IACS, indicating that it meets, at a minimum, the applicable requirements of the
IGC Code, this document and applicable Flag State requirements.
5.1.3 Receiving vessels shall conform with this document and be approved by its F
...
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