SIST EN ISO 16904:2016

Petroleum and natural gas industries - Design and testing of LNG marine transfer arms for conventional onshore terminals (ISO 16904:2016)

This European Standard specifies the design, minimum safety requirements and inspection and testing procedures for liquefied natural gas (LNG) transfer arms intended for use on conventional onshore (LNG) terminals 1). It also covers the minimum requirements for safe LNG transfer between ship and shore. Although the requirements for remote control power systems are covered, the standard does not include all
the details for the design and fabrication of standard parts and fittings associated with transfer arms. The content of this European Standard is supplementary to local or national standards and regulations and is additional to the requirements of EN 1532 and EN 1473.

Erdöl- und Erdgasindustrie - Auslegung und Prüfung von Schiffsverladearmen für Flüssigerdgas für konventionelle landseitige Terminals (ISO 16904:2016)

Diese Internationale Norm legt die Auslegung, die Mindestanforderungen an die Sicherheit und die Kontroll- und Prüfverfahren für Schiffsverladearme für Flüssigerdgas (LNG, en: Liquified Natural Gas) fest, die für den Gebrauch auf konventionellen landseitigen LNG-Terminals vorgesehen sind, an denen LNG Tanker für den internationalen Handel abgefertigt werden. Diese Norm enthält auch die Mindestanforderungen für den sicheren Umschlag von Flüssigerdgas zwischen Schiff und Land.
Obgleich die Anforderungen an Stromversorgungs- und Steuerungssysteme aufgeführt sind, gibt das Dokument nicht alle Einzelheiten für die Auslegung und Herstellung von genormten Teilen und Armaturen für Ladearme an.
Diese Internationale Norm gilt zusätzlich zu lokalen oder nationalen Normen und Verordnungen und ergänzt die Anforderungen der ISO 28460.
Diese Internationale Norm gilt nicht für bestehende Anlagen.

Industries du pétrole et du gaz naturel - Conception et essais des bras de transfert de GNL sur des terminaux terrestres conventionnels (ISO 16904:2016)

L'ISO 16904:2016 spécifie les règles de conception, les spécifications minimales de sécurité ainsi que les procédures de contrôle et d'essais relatifs aux bras de transfert de gaz naturel liquéfié (GNL) marins destinés à être utilisés sur des terminaux terrestres conventionnels, recevant des méthaniers engagés dans le commerce international. Elle peut fournir des lignes directrices pour des opérations côtières et au large. Elle fixe également les spécifications minimales permettant de garantir que le transfert de GNL entre le navire et le terminal s'effectue en toute sécurité.
Bien que les spécifications relatives aux systèmes d'alimentation/télécommande soient couvertes, l'ISO 16904:2016 ne fixe pas tous les détails relatifs à la conception et à la fabrication des pièces normalisées et des raccords des bras de transfert.
L'ISO 16904:2016 vient compléter les normes et règlements locaux ou nationaux, et s'ajoute aux spécifications de l'ISO 28460.
Il n'est pas nécessaire d'appliquer l'ISO 16904:2016 aux installations existantes.

Industrija nafte in zemeljskega plina - Načrtovanje in preskušanje rok za pretakanje utekočinjenega zemeljskega plina za konvencionalne terminale na kopnem (ISO 16904:2016)

Ta evropski standard določa načrtovanje, minimalne varnostne zahteve in preglede ter preskusne postopke za prenos utekočinjenega zemeljskega plina (LNG), namenjenega za rabo na konvencionalnih kopenskih LNG-terminalih 1. Ta standard zajema tudi minimalne zahteve za varen prenos utekočinjenega zemeljskega plina med ladjo in obalo. Kljub temu, da standard zajema tudi zahteve za daljinsko vodene napajalne sisteme, ne zajema vseh podrobnosti glede načrtovanja in izdelave standardnih delov in pritrdilnih elementov, povezanih z sistemom prenosa. Vsebina tega evropskega standarda dopolnjuje lokalne ali nacionalne standarde in predpise ter je dodatek k zahtevam iz standardov EN 1532 in EN 1473.

General Information

• Status: Published
• Public Enquiry End Date: 30-Jun-2013
• Publication Date: 16-Oct-2016
• ICS: 75.060 - Natural gas
• ICS: 75.200 - Petroleum products and natural gas handling equipment
• Technical Committee: DPL - Gas supply
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 06-Oct-2016
• Due Date: 11-Dec-2016
• Completion Date: 17-Oct-2016
• Ref Project: EN ISO 16904:2016 - Petroleum and natural gas industries - Design and testing of LNG marine transfer arms for conventional onshore terminals (ISO 16904:2016)

Relations

• Replaces: SIST EN 1474-1:2009 - Installation and equipment for liquefied natural gas - Design and testing of marine transfer systems - Part 1: Design and testing of transfer arms
• Effective Date: 01-Nov-2016
• Replaces: SIST EN 1474-1:2009 - Installation and equipment for liquefied natural gas - Design and testing of marine transfer systems - Part 1: Design and testing of transfer arms
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 16904:2016
01-november-2016
1DGRPHãþD
SIST EN 1474-1:2009
,QGXVWULMDQDIWHLQ]HPHOMVNHJDSOLQD1DþUWRYDQMHLQSUHVNXãDQMHURN]D
SUHWDNDQMHXWHNRþLQMHQHJD]HPHOMVNHJDSOLQD]DNRQYHQFLRQDOQHWHUPLQDOHQD
NRSQHP,62
Petroleum and natural gas industries - Design and testing of LNG marine transfer arms
for conventional onshore terminals (ISO 16904:2016)
Erdöl- und Erdgasindustrie - Auslegung und Prüfung von Schiffsverladearmen für
Flüssigerdgas für konventionelle landseitige Terminals (ISO 16904:2016)
Industries du pétrole et du gaz naturel - Conception et essais des bras de transfert de
GNL sur des terminaux terrestres conventionnels (ISO 16904:2016)
Ta slovenski standard je istoveten z: EN ISO 16904:2016
ICS:
75.060 Zemeljski plin Natural gas
75.200 2SUHPD]DVNODGLãþHQMH Petroleum products and
QDIWHQDIWQLKSURL]YRGRYLQ natural gas handling
]HPHOMVNHJDSOLQD equipment
SIST EN ISO 16904:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 16904:2016

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SIST EN ISO 16904:2016


EN ISO 16904
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2016
EUROPÄISCHE NORM
ICS 75.180.01 Supersedes EN 1474-1:2008
English Version

Petroleum and natural gas industries - Design and testing
of LNG marine transfer arms for conventional onshore
terminals (ISO 16904:2016)
Industries du pétrole et du gaz naturel - Conception et Erdöl- und Erdgasindustrie - Auslegung und Prüfung
essais des bras de transfert de GNL sur des terminaux von Schiffsverladearmen für Flüssigerdgas für
terrestres conventionnels (ISO 16904:2016) konventionelle landseitige Terminals (ISO
16904:2016)
This European Standard was approved by CEN on 24 July 2015.

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

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

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





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16904:2016 E
worldwide for CEN national Members.

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SIST EN ISO 16904:2016
EN ISO 16904:2016 (E)
Contents Page
European foreword . 3
2

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SIST EN ISO 16904:2016
EN ISO 16904:2016 (E)
European foreword
This document (EN ISO 16904:2016) 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 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 September 2016, and conflicting national standards
shall be withdrawn at the latest by September 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN 1474-1:2008.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 16904:2016 has been approved by CEN as EN ISO 16904:2016 without any modification.


3

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SIST EN ISO 16904:2016

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SIST EN ISO 16904:2016
INTERNATIONAL ISO
STANDARD 16904
First edition
2016-02-15
Petroleum and natural gas
industries — Design and testing
of LNG marine transfer arms for
conventional onshore terminals
Industries du pétrole et du gaz naturel — Conception et essais des
bras de transfert de GNL sur des terminaux terrestres conventionnels
Reference number
ISO 16904:2016(E)
©
ISO 2016

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SIST EN ISO 16904:2016
ISO 16904:2016(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

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SIST EN ISO 16904:2016
ISO 16904:2016(E)

Contents Page
Foreword .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms . 9
5 Design of the arms .10
5.1 Definition of the length and the configuration of the arms, arms description .10
5.1.1 General.10
5.1.2 Balancing .10
5.1.3 Arms dimensions and clearances .11
5.2 Design basis .11
5.2.1 Product line diameter and product data .11
5.2.2 Material and grades .11
5.2.3 Stress analysis .12
5.3 Swivel joints .15
5.3.1 General.15
5.3.2 Product sealing arrangement .16
5.3.3 Bearing system .16
5.3.4 External sealing arrangement .16
5.3.5 Design .16
5.4 Structural bearings .17
5.4.1 Design .17
5.4.2 Protection of structural bearings.18
5.4.3 Grease sampling point .18
5.5 Accessories .18
5.5.1 Adjustable support (jack) .18
5.5.2 Nitrogen injection line .18
5.5.3 Stowing locking device .18
5.5.4 Ladders and platforms . .19
5.5.5 Vapour recovery lines .19
5.5.6 Liquid nitrogen line .19
5.5.7 Thermal insulation .19
5.5.8 Ice fall protection .19
5.6 Pipework and fitting .19
5.6.1 Process connections . .19
5.6.2 Drain connection.19
5.6.3 Plugged connection .20
5.6.4 Valve .20
5.6.5 Connection flange.20
5.6.6 Gasket .20
5.7 Welding .20
5.8 Corrosion protection and embrittlement protection .20
5.8.1 Corrosion protection .20
5.8.2 Embrittlement protection .20
5.9 Maintenance .21
6 Safety systems .21
6.1 General .21
6.2 Two stage alarm and shutdown system .22
6.2.1 First stage .22
6.2.2 Second stage .22
6.3 Monitoring and alarm systems .22
6.3.1 Alarm envelopes .22
© ISO 2016 – All rights reserved iii

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SIST EN ISO 16904:2016
ISO 16904:2016(E)

6.3.2 Arm positioning alarms system .22
6.3.3 Arm constant position monitoring system (CPMS) .23
6.3.4 Pressure and hydraulic level alarm .23
6.4 ERS .23
6.4.1 General.23
6.4.2 Design of ERS .23
6.4.3 Safety devices on ERS .24
6.5 Safety devices .24
6.5.1 Fire safety requirements .24
6.5.2 Electrical safety requirements .25
6.5.3 Failure of electrical power supply.25
6.5.4 Stray current protectors .26
6.5.5 Bonding .26
7 Connection with the ship .26
7.1 General .26
7.2 Design of QCDC .26
7.3 QCDC system .27
7.4 Flange cover.27
8 Hydraulic and electric control systems .28
8.1 General .28
8.2 Arms operations .28
8.3 Hydraulic components .29
8.4 Electric components .30
8.5 Testing of control systems .30
8.6 Remote control .30
8.7 Transfer arms jetty control console .30
9 Inspection and tests .31
9.1 General .31
9.2 Prototype test .31
9.2.1 General.31
9.2.2 Swivel joint .31
9.2.3 ERS .34
9.2.4 QCDC .35
9.3 Manufacturing inspection and tests .37
9.3.1 General.37
9.3.2 Materials .37
9.3.3 Welding .37
9.3.4 Non-destructive test .37
9.3.5 Dimensional inspection .37
9.3.6 Pressure test .37
9.3.7 ERS .38
9.3.8 QCDC .38
9.3.9 Insulating flange (stray current protector) .39
9.3.10 Hydraulic circuit test .39
9.4 Factory acceptance tests .39
9.5 Site acceptance tests .40
9.5.1 General.40
9.5.2 Transfer arm assembly .41
9.5.3 Hydraulic circuit .42
10 Quality assurance and control.42
10.1 Quality system .42
10.2 Quality plan .42
11 Required documentation .43
Annex A (informative) Design data sheets .44
Annex B (informative) Reference table and figures .58
iv © ISO 2016 – All rights reserved

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SIST EN ISO 16904:2016
ISO 16904:2016(E)

Annex C (informative) Documentation requirements.62
Bibliography .67
© ISO 2016 – All rights reserved v

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SIST EN ISO 16904:2016
ISO 16904:2016(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 WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 67, Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries.
vi © ISO 2016 – All rights reserved

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SIST EN ISO 16904:2016
INTERNATIONAL STANDARD ISO 16904:2016(E)
Petroleum and natural gas industries — Design and
testing of LNG marine transfer arms for conventional
onshore terminals
1 Scope
This International Standard specifies the design, minimum safety requirements and inspection
and testing procedures for liquefied natural gas (LNG) marine transfer arms intended for use on
...

SLOVENSKI STANDARD
oSIST prEN ISO 16904:2013
01-junij-2013
,QGXVWULMDQDIWHLQ]HPHOMVNHJDSOLQD1DþUWRYDQMHLQSUHVNXãDQMHURN]D
SUHWDNDQMHXWHNRþLQMHQHJD]HPHOMVNHJDSOLQD]DNRQYHQFLRQDOQHWHUPLQDOHQD
NRSQHP,62',6
Petroleum and natural gas industries - Design and testing of LNG marine transfer arms
for conventional onshore terminals (ISO/DIS 16904:2013)
Erdöl- und Erdgasindustrie - Auslegung und Prüfung von Schiffsverladearmen für
Flüssigerdgas für konventionelle landseitige Terminals (ISO/DIS 16904:2013)
Industries du pétrole et du gaz naturel - Conception et essai de bras de transfert de gaz
naturel liquéfié sur des terminaux terrestres conventionnels (ISO/DIS 16904:2013)
Ta slovenski standard je istoveten z: prEN ISO 16904
ICS:
75.180.01 Oprema za industrijo nafte in Equipment for petroleum and
zemeljskega plina na splošno natural gas industries in
general
75.200 2SUHPD]DVNODGLãþHQMH Petroleum products and
QDIWHQDIWQLKSURL]YRGRYLQ natural gas handling
]HPHOMVNHJDSOLQD equipment
oSIST prEN ISO 16904:2013 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 16904:2013

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oSIST prEN ISO 16904:2013


EUROPEAN STANDARD
DRAFT
prEN ISO 16904
NORME EUROPÉENNE

EUROPÄISCHE NORM

March 2013
ICS 75.180.01 Will supersede EN 1474-1:2008
English Version
Petroleum and natural gas industries - Design and testing of
LNG marine transfer arms for conventional onshore terminals
(ISO/DIS 16904:2013)
Industries du pétrole et du gaz naturel - Conception et Erdöl- und Erdgasindustrie - Auslegung und Prüfung von
essai de bras de transfert de gaz naturel liquéfié sur des Schiffsverladearmen für Flüssigerdgas für konventionelle
terminaux terrestres conventionnels (ISO/DIS 16904:2013) landseitige Terminals (ISO/DIS 16904:2013)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 282.

If this draft becomes a European Standard, 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.

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

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

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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 16904:2013: E
worldwide for CEN national Members.

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oSIST prEN ISO 16904:2013
prEN ISO 16904:2013 (E)
Contents
Page
Foreword . 3


2

---------------------- Page: 4 ----------------------
oSIST prEN ISO 16904:2013
prEN ISO 16904:2013 (E)
Foreword
This document (prEN ISO 16904:2013) has been prepared by Technical Committee ISO/TC 67 "Materials,
equipment and offshore structures for petroleum, petrochemical and natural gas industries" in collaboration
with Technical Committee CEN/TC 282 “Installation and equipment for LNG” the secretariat of which is held
by AFNOR.
This document is currently submitted to the parallel Enquiry.
This document will supersede EN ISO 1474-1:2008.
Endorsement notice
The text of ISO/DIS 16904:2013 has been approved by CEN as prEN ISO 16904:2013 without any
modification.

3

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oSIST prEN ISO 16904:2013

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oSIST prEN ISO 16904:2013

DRAFT INTERNATIONAL STANDARD ISO/DIS 16904
ISO/TC 67 Secretariat: NEN
Voting begins on Voting terminates on

2013-03-14 2013-08-14
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION  •  МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ  •  ORGANISATION INTERNATIONALE DE NORMALISATION


Petroleum and natural gas industries — Design and testing of
LNG marine transfer arms for conventional onshore terminals
Industries du pétrole et du gaz naturel — Conception et essai de bras de transfert de gaz naturel liquéfié sur des
terminaux terrestres conventionnels

ICS 75.180.01





ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.

To expedite distribution, this document is circulated as r eceived from the committee
secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at
publication stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.



THIS DOCUMENT IS A DRAFT CIRCULATED 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 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 NATIONAL REGULATIONS.
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.
©  International Organization for Standardization, 2013

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oSIST prEN ISO 16904:2013
ISO/DIS 16904

Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user’s country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,
photocopying, recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to 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 [e-mail]
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.

ii © ISO 2013 – All rights reserved

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oSIST prEN ISO 16904:2013
ISO/DIS 16904

Contents Page
Foreword . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions and abbreviations . 2
3.1 Terms and definitions . 2
3.2 Abbreviations . 9
4 Design of the arms . 10
4.1 Definition of the length and the configuration of the arms, arms description . 10
4.2 Design basis . 11
4.3 Swivel joints . 16
4.4 Structural bearings . 17
4.5 Accessories . 19
4.6 Pipework and fitting . 20
4.7 Welding . 20
4.8 Corrosion protection and embrittlement protection . 21
4.9 Maintenance . 21
5 Safety systems . 21
5.1 General . 21
5.2 Two stage alarm and shut down system . 22
5.3 Monitoring and alarm systems . 22
5.4 ERS . 23
5.5 Safety devices . 25
6 Connection with the ship . 26
6.1 General . 26
6.2 Design of QCDC . 27
6.3 QCDC system . 27
6.4 Flange cover . 28
7 Hydraulic and electric control systems . 28
7.1 General . 28
7.2 Arms operations . 28
7.3 Hydraulic components . 29
7.4 Electric components . 30
7.5 Testing of control systems . 31
7.6 Remote control . 31
7.7 Transfer arms jetty control console . 31
8 Inspection and tests . 31
8.1 General . 31
8.2 Prototype test . 31
8.3 Manufacturing inspection and tests . 38
8.4 Factory acceptance tests. 40
8.5 Site acceptance tests . 42
9 Quality assurance and control . 44
9.1 Quality system . 44
9.2 Quality plan . 44
Annex A (informative) Design data sheets . 45
Annex B (informative) Reference figures . 60
© ISO 2012 – All rights reserved iii

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oSIST prEN ISO 16904:2013
ISO/DIS 16904

Annex C (informative) Documentation requirements . 63
Bibliography . 68

iv © ISO 2012 – All rights reserved

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oSIST prEN ISO 16904:2013
ISO/DIS 16904

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 16904 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries.
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DRAFT INTERNATIONAL STANDARD ISO/DIS 16904

Petroleum and natural gas industries — Design and testing of
LNG marine transfer arms for conventional onshore terminals
1 Scope
This International Standard specifies the design, minimum safety requirements and inspection and testing
procedures for liquefied natural gas (LNG) marine transfer arms intended for use on conventional onshore
LNG terminals, handling LNG carriers engaged in international trade. It can provide guidance for offshore and
coastal operations. It also covers the minimum requirements for safe LNG transfer between ship and shore.
Although the requirements for power/control systems are covered, this International Standard does not include
all the details for the design and fabrication of standard parts and fittings associated with transfer arms.
This International Standard is supplementary to local or national standards and regulations and is additional to
the requirements of ISO 28460.
This International Standard needs not be applied to existing facilities.
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.
IEC 60034-5, Rotating electrical machines  Part 5: Degrees of protection provided by the integral design of
rotating electrical machines (IP code)  Classification
IEC 60079-0, Explosive atmospheres  Part 0: General requirements
IEC 60079-1, Explosive atmospheres  Part 1: Equipment protection by flameproof enclosures ―d‖
IEC 60079-2, Explosive atmospheres  Part 2: Equipment protection by pressurized enclosures ―p‖
IEC 60079-5, Explosive atmospheres  Part 5: Equipment protection by powder filling ―q‖
IEC 60079-6, Explosive atmospheres  Part 6: Equipment protection by oil immersion ―o‖
IEC 60079-7, Explosive atmospheres  Part 7: Equipment protection by increased safety ―e‖
IEC 60079-10-1, Explosive atmospheres  Part 10-1: Classification of areas – Explosive gas atmospheres
IEC 60079-11, Explosive atmospheres  Part 11: Equipment protection by intrinsically safety ―i‖
IEC 60079-18, Electrical atmospheres  Part 18: Equipment protection by encapsulation ―m‖
IEC 60079-25, Electrical atmospheres  Part 25: Intrinsically safe electrical systems
IEC 60529, Degrees of protection provided by enclosures (IP Code) and IEC 60529/A1, Amendment 1
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IEC 61508 (all parts), Functional safety of electrical/electronic/programmable electronic safety-related systems
IEC 62305-3, Protection against lightning  Part 3: Physical damage to structures and life hazard
ISO 3452-1, Non-destructive testing  Penetrant testing  Part1: General principles
ISO 4406, Hydraulic fluid power – Fluids  Method for coding the level of contamination by solid particles
ISO 9000, Quality management systems  Fundamentals and vocabulary
ISO 9001, Quality management systems  Requirements
ISO 9934-1, Non-destructive testing  Magnetic particle testing – Part1: General principles
ISO 10474, Steel and steel products  Inspection documents
ISO 10497, Testing of valves  Fire type-testing requirements
ISO 17636, Non-destructive testing of welds  Radiographic testing of fusion-welded joints
ISO 28460, Installation and equipment for liquefied natural gas - Ship to shore interface and port operations
ASME B16.5, Pipe Flanges and Flanged Fittings
ASME Boiler and Pressure Vessel Code IX: Welding and Brazing Qualifications
3 Terms and definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
apex swivel
articulated, fluid-carrying joint located between the and
Note 1 to entry: See Figure B.2.
Note 2 to entry: It provides of the relative to the .
3.2
attitude
various modes of use and/or location of the (i.e. manoeuvring, stowed, connected, hydrostatic
test, and maintenance)
Note 1 to entry: The can take several positions for each .
3.3
base riser
riser
vertical assembly which bolts to the loading platform and supports the articulated assembly of the arm>
Note 1 to entry: See Figure B.2.
Note 2 to entry: Sometimes referred to as ‗standpost‘.
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3.4
bottom swivel
accommodates pitching motion of and is located adjacent to in horizontal
part of
Note 1 to entry: See Figure B.2.
3.5
brinelling
any permanent indentation in or raceways caused by excessive loading of balls
or rollers
3.6
cargo manifold
pipe assembly mounted onboard to which the or of the
is connected
Note 1 to entry: See Figure B.2.
3.7
cavitation
formation and collapse of bubbles in a liquid when the pressure falls to or below the liquid vapour pressure;
the collapse releases energy, sometimes with an audible sound and vibration
Note 1 to entry: Such low pressures occur in high velocity zones such as the inner radius of elbows, or at places with
variations of diameters.
3.8
clash
any contact during design operational conditions, or as a result of an emergency separation, between any part
of a and:
 adjacent while both s are operating or one is operating and the other
is stowed (e.g. the counterweights);
 adjacent section of the same (e.g. and );
 loading platform equipment (e.g. and piping or valves)
3.9
contact angle α
angle between the plane of the or balls or rollers and the centre of contact
at the ball or roller raceway interface
3.10
conventional onshore LNG terminal
LNG exporting or receiving terminal that is located on-shore and that has a marine transfer arms for the
loading or unloading of LNG carriers in a harbour or other sheltered coastal location
3.11
counterweight
system of weights used to balance the and assemblies
Note 1 to entry: Some s have a single for this function and others have multiple
s.
3.12
design pressure
pressure for which the is designed
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Note 1 to entry: See Table A.1.
3.13
design temperature
range of temperatures for which the is designed
Note 1 to entry: See Table A.1.
3.14
drift
longitudinal and/or lateral displacement of the under the influence of environmental forces
Note 1 to entry: See also ―surge fore or aft‖ in 3.51 and ―sway‖ in 3.53.
3.15
emergency release system
ERS
system that provides a positive means of quick release of s and safe isolation of
and shore
Note 1 to entry: See Figure B.2.
3.16
emergency shut down
ESD
method that safely and effectively stops the transfer of and vapour between the and
shore
3.17
freeboard
vertical distance between the ship's deck and the water level at the manifold location
Note 1 to entry: See Table A.3 and Figure A.1.
3.18
freewheel
ability of a hydraulically operated when connected to a to follow freely without
hydraulic restraint the vertical and horizontal motions of the ‘s manifold (draft changes and
and motions)
3.19
heave
vertical motion of the due to wave action
Note 1 to entry: See Table A.4 and Figure A.2.
3.20
inboard arm
product-carrying pipe and any structural members contained between the and the swivel>
Note 1 to entry: See Figure B.2.
3.21
included angle
angle formed between and
Note 1 to entry: See Figure B.2.
Note 2 to entry: The maximum and minimum s are left to the transfer arm manufacturer.
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Note 3 to entry: The in the stowed position of the s is such, that the s are
parked with the behind the berthing line.
3.22
insulating flange
electrical insulating system, usually dedicated, which is installed in the lower end of the
Note 1 to entry: Its purpose is to prevent stray currents from causing an arc at the ‘s flange as the
is connected or disconnected.
3.23
jack
permanent, adjustable load-carrying mechanism potentially installed in the to transfer
a portion of the fluid weight to the deck instead of the manifold
Note 1 to entry: See Figure B.2.
3.24
jetty control centre
control centre situated on or adjacent to the jetty primarily to control and/or monitor the s
Note 1 to entry: Sometimes referred to as ‗jetty control room‘ or ‗local control room‘.
3.25
LNG carrier
LNGC
tank ship designed for the carriage of
3.26
luffing
rotary motions of the and in the vertical plane
Note 1 to entry: See Figure B.2.
3.27
main hydraulic unit
MHU
hydraulic unit that generates hydraulic power to ensure the normal operation and emergency release
sequence of the arms
3.28
manifold setback
horizontal distance between the board side of and the face of
Note 1 to entry: See Table A.3 and Figure A.1.
3.29
manifold spacing
horizontal distance between the centerlines of the pipe assembly of the
Note 1 to entry: See Table A.3 and Figure A.1.
3.30
middle swivel
accommodates yawing and surge of and is located between and
in vertical part of
Note 1 to entry: See Figure B.2.
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3.31
operating envelope
volume in which (s) of a (group of) (s) is (are) required to operate
3.32
outboard arm
product-carrying pipe and any structural members contained between the and the assembly>
Note 1 to entry: See Figure B.2.
3.33
owner (or designated agent)
company or group of companies for whose use the s are installed, responsible for the safe
design and construction of the installation
3.34
pantograph system
system for transmitting balancing loads from the to the (s)
Note 1 to entry: The system comprises an assembly of linkages and pinned connections, or a cable and sheaves
system (respectively ―rigid link pantograph‖ and ―cables and sheaves pantograph‖).
3.35
pitch(ing)
rotation of the around transversal horizontal axis
Note 1 to entry: See Table A.4 and Figure A.2.
3.36
powered emergency release coupling
PERC
powered device to provide a means of quick release of the when such action is required only
as an emergency measure
3.37
presentation flange
flange for connection to either the or
Note 1 to entry: See Figure B.2.
3.38
product
fluid transferred using s
Note 1 to entry: Fluids are , or .
2
3.39
quick connect disconnect coupler
QCDC
coupler
manual or hydraulic mechanical device used to connect the to the without
employing bolts
Note 1 to entry: See Figure B.2.
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3.40
remote pendant control
remote control
device to facilitate the fine manoeuvring operation of the ...