SIST EN ISO 12617:2017

SLOVENSKI STANDARD
01-junij-2017
&HVWQDYR]LOD3ULNOMXþHN]DSROQMHQMHXWHNRþLQMHQHJD]HPHOMVNHJDSOLQD/1*
3ULNOMXþHN03D,62
Road vehicles - Liquefied natural gas (LNG) refuelling connector - 3,1 MPa connector
(ISO 12617:2015)
Verflüssigtes Erdgas (LNG) Betankung Anschluss - 3,1 MPa Anschluss (ISO
12617:2015)
Véhicules routiers - Connecteur pour le remplissage de gaz naturel liquéfié (GNL) -
Connecteur à 3,1 MPa (ISO 12617:2015)
Ta slovenski standard je istoveten z: EN ISO 12617:2017
ICS:
43.060.40 Sistemi za gorivo Fuel systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 12617
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2017
EUROPÄISCHE NORM
ICS 43.060.40
English Version
Road vehicles - Liquefied natural gas (LNG) refuelling
connector - 3,1 MPa connector (ISO 12617:2015)
Véhicules routiers - Connecteur de remplissage de gaz Straßenfahrzeuge - Betankungsanschluss für
naturel liquéfié (GNL) - Connecteur à 3,1 MPa (ISO verflüssigtes Erdgas (LNG) - 3,1 MPa Anschluss (ISO
12617:2015) 12617:2015)
This European Standard was approved by CEN on 24 March 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 12617:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 12617:2015 has been prepared by Technical Committee ISO/TC 22 “Road vehicles” of
the International Organization for Standardization (ISO) and has been taken over as EN ISO 12617:2017
by Technical Committee CEN/TC 301 “Road vehicles” 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 October 2017, and conflicting national standards shall
be withdrawn at the latest by October 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.
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 12617:2015 has been approved by CEN as EN ISO 12617:2017 without any modification.

INTERNATIONAL ISO
STANDARD 12617
First edition
2015-03-15
Corrected version
2016-01-15
Road vehicles — Liquefied natural
gas (LNG) refuelling connector — 3,1
MPa connector
Véhicules routiers — Connecteur pour le remplissage de gaz naturel
liquéfié (GNL) — Connecteur à 3,1 MPa
Reference number
ISO 12617:2015(E)
©
ISO 2015
ISO 12617:2015(E)
© ISO 2015, 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 2015 – All rights reserved

ISO 12617:2015(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General construction requirements . 3
4.1 General . 3
4.2 LNG refuelling nozzles . 3
4.3 LNG nozzles and receptacles. 3
4.4 Pressure rating . 4
4.4.1 Working pressure (maximum allowable pressure) . 4
4.4.2 Maximum service pressure . 4
4.4.3 Hydrostatic pressure . 4
4.4.4 Working temperature . 4
4.5 Materials . 4
4.5.1 Corrosion protection . 4
4.5.2 LNG nozzle and receptacles . 4
4.5.3 Material of the bodies of the receptacle and of the nozzle . 4
4.6 Hand operation . 4
4.7 Sealing exchange . 4
4.8 Installation . 5
5 Nozzles . 5
5.1 Venting depressurization . 5
5.2 Identification . 5
5.3 Internal check valve . 5
6 Standard receptacle dimensions . 5
6.1 Drawing . 5
7 Receptacle . 6
7.1 Cycle life . 6
7.2 Design . 6
7.3 Protective cap . 6
7.4 Mounting . 7
7.5 Maximum working temperature . 7
8 Instructions . 7
8.1 Clarity . 7
8.2 List of tools . 7
9 Marking . 7
9.1 Clarity . 7
9.2 Manufacturer and International Standard information . 7
9.3 Date of manufacture . 8
9.3.1 First and second digits . 8
9.3.2 Third and fourth digits . 8
9.4 Alternative marking . 8
9.5 Additional marking . 8
10 Tests . 8
10.1 General requirements . 8
10.2 User interface . 9
10.2.1 Positive locking . 9
10.2.2 Safe disconnection . 9
10.2.3 Manual force in warm conditions . 9
10.2.4 Manual force at cold conditions under frost . 9
10.3 Impact resistance of a nozzle. 9
ISO 12617:2015(E)
10.4 Receptacle protective cap .10
10.5 Leakage at room temperature .10
10.5.1 Nozzle .10
10.5.2 Receptacle .10
10.6 Abnormal loads .11
10.6.1 General.11
10.6.2 Test in the unpressurized condition .11
10.6.3 Test in pressurized condition .11
10.7 Durability of the device (Cycle life) .12
10.7.1 Concept of the test of a device .12
10.7.2 Cycle definition .12
10.7.3 Test series .12
10.7.4 Exchange of seal of the nozzle and/or receptacle .12
10.8 Electrical conductivity .12
10.9 Hydrostatic strength .13
10.9.1 Test configurations.13
10.9.2 Test procedure and evaluation .13
10.10 Corrosion resistance .13
10.11 Non-igniting evaluation .13
Bibliography .14
iv © ISO 2015 – All rights reserved

ISO 12617:2015(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 22, Road vehicles, Subcommittee SC 25, Vehicles
using gaseous fuels.
The corrected version of ISO 12617:2015 incorporates the following corrections.
Figure 1 has been corrected and the key to Figure 1 has been updated to reflect the changes.
INTERNATIONAL STANDARD ISO 12617:2015(E)
Road vehicles — Liquefied natural gas (LNG) refuelling
connector — 3,1 MPa connector
1 Scope
This International Standard specifies liquefied natural gas (LNG) refuelling nozzles and receptacles
constructed entirely of new and unused parts and materials for road vehicles powered by LNG. An
LNG refuelling connector consists of, as applicable, the receptacle and its protective cap (mounted on
the vehicle) and the nozzle. This International standard is applicable only to such devices designed
for a maximum working pressure of 3,4 MPa (34 bar) to those using LNG as vehicle fuel and having
standardized mating components.
NOTE All references to pressures given in megapascals and bar (1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm )
are to be considered gauge pressures, unless otherwise specified.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 14469, Road vehicles — Compressed natural gas (CNG) refuelling connector
ISO 15500-2, Road vehicles — Compressed natural gas (CNG) fuel system components — Part 2:
Performance and general test methods
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
check valve
part of the receptacle, or of the nozzle, mounted inside which prevents return flow or venting of fuel
after the nozzle was disconnected from the receptacle
3.2
cycle life
number of refuelling cycles, as specified in this International Standard, which the component can
withstand without leak or without another fail of function
3.3
device
nozzle or receptacle
3.4
dry air
air with moisture content such that the dew point of the air at the required test pressure is at least
11 °C below the ambient test temperature
3.5
hydrostatic pressure
pressure to which a component is taken to verify the structural strength of the component
ISO 12617:2015(E)
3.6
liquefied natural ga
...

SLOVENSKI STANDARD
01-junij-2017
Cestna vozila - Priključek za polnjenje z utekočinjenim zemeljskim plinom (LNG) -
Priključek 3,1 MPa (ISO 12617:2015)
Road vehicles - Liquefied natural gas (LNG) refuelling connector - 3,1 MPa connector
(ISO 12617:2015)
Verflüssigtes Erdgas (LNG) Betankung Anschluss - 3,1 MPa Anschluss (ISO
12617:2015)
Véhicules routiers - Connecteur pour le remplissage de gaz naturel liquéfié (GNL) -
Connecteur à 3,1 MPa (ISO 12617:2015)
Ta slovenski standard je istoveten z: EN ISO 12617:2017
ICS:
43.060.40 Sistemi za gorivo Fuel systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 12617
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2017
EUROPÄISCHE NORM
ICS 43.060.40
English Version
Road vehicles - Liquefied natural gas (LNG) refuelling
connector - 3,1 MPa connector (ISO 12617:2015,
Corrected version 2016-01-15)
Véhicules routiers - Connecteur de remplissage de gaz Straßenfahrzeuge - Betankungsanschluss für
naturel liquéfié (GNL) - Connecteur à 3,1 MPa (ISO verflüssigtes Erdgas (LNG) - 3,1 MPa Anschluss (ISO
12617:2015, Version corrigée 2016-01-15) 12617:2015, korrigierte Fassung 2016-01-15)
This European Standard was approved by CEN on 24 March 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 12617:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 12617:2015 , Corrected version 2016-01-15 has been prepared by Technical Committee
ISO/TC 22 “Road vehicles” of the International Organization for Standardization (ISO) and has been
taken over as EN ISO 12617:2017 by Technical Committee CEN/TC 301 “Road vehicles” 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 October 2017, and conflicting national standards shall
be withdrawn at the latest by October 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.
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 12617:2015, Corrected version 2016-01-15 has been approved by CEN as EN
ISO 12617:2017 without any modification.

INTERNATIONAL ISO
STANDARD 12617
First edition
2015-03-15
Corrected version
2016-01-15
Road vehicles — Liquefied natural
gas (LNG) refuelling connector — 3,1
MPa connector
Véhicules routiers — Connecteur pour le remplissage de gaz naturel
liquéfié (GNL) — Connecteur à 3,1 MPa
Reference number
ISO 12617:2015(E)
©
ISO 2015
ISO 12617:2015(E)
© ISO 2015, 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 2015 – All rights reserved

ISO 12617:2015(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General construction requirements . 3
4.1 General . 3
4.2 LNG refuelling nozzles . 3
4.3 LNG nozzles and receptacles. 3
4.4 Pressure rating . 4
4.4.1 Working pressure (maximum allowable pressure) . 4
4.4.2 Maximum service pressure . 4
4.4.3 Hydrostatic pressure . 4
4.4.4 Working temperature . 4
4.5 Materials . 4
4.5.1 Corrosion protection . 4
4.5.2 LNG nozzle and receptacles . 4
4.5.3 Material of the bodies of the receptacle and of the nozzle . 4
4.6 Hand operation . 4
4.7 Sealing exchange . 4
4.8 Installation . 5
5 Nozzles . 5
5.1 Venting depressurization . 5
5.2 Identification . 5
5.3 Internal check valve . 5
6 Standard receptacle dimensions . 5
6.1 Drawing . 5
7 Receptacle . 6
7.1 Cycle life . 6
7.2 Design . 6
7.3 Protective cap . 6
7.4 Mounting . 7
7.5 Maximum working temperature . 7
8 Instructions . 7
8.1 Clarity . 7
8.2 List of tools . 7
9 Marking . 7
9.1 Clarity . 7
9.2 Manufacturer and International Standard information . 7
9.3 Date of manufacture . 8
9.3.1 First and second digits . 8
9.3.2 Third and fourth digits . 8
9.4 Alternative marking . 8
9.5 Additional marking . 8
10 Tests . 8
10.1 General requirements . 8
10.2 User interface . 9
10.2.1 Positive locking . 9
10.2.2 Safe disconnection . 9
10.2.3 Manual force in warm conditions . 9
10.2.4 Manual force at cold conditions under frost . 9
10.3 Impact resistance of a nozzle. 9
ISO 12617:2015(E)
10.4 Receptacle protective cap .10
10.5 Leakage at room temperature .10
10.5.1 Nozzle .10
10.5.2 Receptacle .10
10.6 Abnormal loads .11
10.6.1 General.11
10.6.2 Test in the unpressurized condition .11
10.6.3 Test in pressurized condition .11
10.7 Durability of the device (Cycle life) .12
10.7.1 Concept of the test of a device .12
10.7.2 Cycle definition .12
10.7.3 Test series .12
10.7.4 Exchange of seal of the nozzle and/or receptacle .12
10.8 Electrical conductivity .12
10.9 Hydrostatic strength .13
10.9.1 Test configurations.13
10.9.2 Test procedure and evaluation .13
10.10 Corrosion resistance .13
10.11 Non-igniting evaluation .13
Bibliography .14
iv © ISO 2015 – All rights reserved

ISO 12617:2015(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 22, Road vehicles, Subcommittee SC 25, Vehicles
using gaseous fuels.
The corrected version of ISO 12617:2015 incorporates the following corrections.
Figure 1 has been corrected and the key to Figure 1 has been updated to reflect the changes.
INTERNATIONAL STANDARD ISO 12617:2015(E)
Road vehicles — Liquefied natural gas (LNG) refuelling
connector — 3,1 MPa connector
1 Scope
This International Standard specifies liquefied natural gas (LNG) refuelling nozzles and receptacles
constructed entirely of new and unused parts and materials for road vehicles powered by LNG. An
LNG refuelling connector consists of, as applicable, the receptacle and its protective cap (mounted on
the vehicle) and the nozzle. This International standard is applicable only to such devices designed
for a maximum working pressure of 3,4 MPa (34 bar) to those using LNG as vehicle fuel and having
standardized mating components.
NOTE All references to pressures given in megapascals and bar (1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm )
are to be considered gauge pressures, unless otherwise specified.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 14469, Road vehicles — Compressed natural gas (CNG) refuelling connector
ISO 15500-2, Road vehicles — Compressed natural gas (CNG) fuel system components — Part 2:
Performance and general test methods
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
check valve
part of the receptacle, or of the nozzle, mounted inside which prevents return flow or venting of fuel
after the nozzle was disconnected from the receptacle
3.2
cycle life
number of refuelling cycles, as specified in this International Standard, which the component can
withstand without leak or without another fail of function
3.3
device
nozzle or receptacle
3.4
dry air
air with moisture content such that the dew point of the air at the required test pressure is at least
11 °C below the ambient test temperature
3.5
hydrostatic pressure
pressure to which a component is taken to verify the structural strength of the component
...