SIST EN ISO 14469:2017

SLOVENSKI STANDARD
01-november-2017
Cestna vozila - Priključek za polnjenje s stisnjenim zemeljskim plinom (CNG) (ISO
14469:2017)
Road vehicles - Compressed natural gas (CNG) refuelling connector (ISO 14469:2017)
Straßenfahrzeuge - Betankungsanschluss für komprimiertes Erdgas (CNG) (ISO
14469:2017)
Véhicules routiers - Connecteur de remplissage en gaz naturel comprimé (GNC) (ISO
14469:2017)
Ta slovenski standard je istoveten z: EN ISO 14469:2017
ICS:
43.060.40 Sistemi za gorivo Fuel systems
75.060 Zemeljski plin Natural gas
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 14469
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2017
EUROPÄISCHE NORM
ICS 43.060.40
English Version
Road vehicles - Compressed natural gas (CNG) refuelling
connector (ISO 14469:2017)
Véhicules routiers - Connecteur de remplissage en gaz
naturel comprimé (GNC) (ISO 14469:2017)
This European Standard was approved by CEN on 11 September 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 14469:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 14469:2017 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 14469:2017
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 March 2018, and conflicting national standards shall
be withdrawn at the latest by March 2018.
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 has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 14469:2017 has been approved by CEN as EN ISO 14469:2017 without any modification.

INTERNATIONAL ISO
STANDARD 14469
First edition
2017-01
Road vehicles — Compressed natural
gas (CNG) refuelling connector
Véhicules routiers — Connecteur de remplissage en gaz naturel
comprimé (GNC)
Reference number
ISO 14469:2017(E)
©
ISO 2017
ISO 14469:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

ISO 14469:2017(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General construction requirements . 2
5 Nozzles . 3
6 Standard receptacle dimensions . 4
6.1 Standard receptacle dimensions Size 1 (B200, B250) . 4
6.2 Standard receptacle dimensions size 2 (C200, C250) . 7
7 Receptacles .10
8 Instructions .11
9 Marking .11
10 Tests .12
10.1 General requirements .12
10.2 User interface .12
10.3 Impact resistance .12
10.4 Receptacle protective caps.13
10.5 Leakage at room temperature .13
10.5.1 Nozzle .13
10.5.2 Receptacle .13
10.6 Valve operating handle .14
10.7 Abnormal loads .14
10.7.1 General.14
10.7.2 Test in the unpressurized condition .15
10.7.3 Test in the pressurized condition .15
10.8 Rocking/Twisting .15
10.9 Mounting hardware torque .16
10.10 Low and high temperatures .16
10.10.1 General.16
10.10.2 Leakage test . .16
10.10.3 Operation test .17
10.11 Durability .17
10.11.1 Durability cycling .17
10.11.2 Oxygen ageing .23
10.11.3 Seal material compatibility .23
10.11.4 Ten-day moist ammonia-air stress cracking .24
10.11.5 Electrical resistance .24
10.12 Hydrostatic strength .24
10.13 Corrosion resistance .24
10.13.1 Nozzles .25
10.13.2 Receptacles .25
10.14 Deformation .25
10.15 Non-igniting evaluation .25
10.16 Pressure-tight protective cap (PTPC) .25
10.16.1 General.25
10.16.2 Leakage .26
10.16.3 Durability cycling .26
10.16.4 Abuse.27
10.16.5 Impact resistance .27
ISO 14469:2017(E)
10.16.6 Corrosion resistance .27
10.16.7 Hydrostatic strength .27
Annex A (informative) Nozzle characteristics.28
Annex B (normative) Receptacle text fixture.29
Bibliography .37
iv © ISO 2017 – All rights reserved

ISO 14469:2017(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. 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. 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 41, Specific
aspects for gaseous fuels.
This first edition of ISO 14469:2016 cancels and replaces the first edition of ISO 14469-1:2004,
ISO 14469-2:2007 and ISO 14469-3:2006, which have been technically revised.
ISO 14469:2017(E)
Introduction
This document was developed to use in the examination, testing and certification of newly produced
compressed natural (CNG) gas vehicle fuelling nozzles and receptacles and, as such, applies only to the
nozzles and receptacles used in CNG fuelling systems, and not to the system itself.
A nozzle certified to this International Standard will be functionally compatible from a safety and
performance perspective with all listed receptacles of compatible profile and system pressure. Similarly,
a certified receptacle will be functionally compatible from a safety and performance perspective with
all listed nozzles of compatible profile and system pressure.
As there may eventually be many different kinds of nozzles and receptacles available from a variety
of manufacturers which, for safety reasons, have to be all compatible with one another, this document
specifies a series of receptacle profiles. These standard profiles incorporate the design specifications
(mating materials, geometry and tolerances) which may be considered in the certification of a submitted
nozzle or receptacle.
The construction and performance of nozzles and receptacles are based on the observation that three
main parameters affect user safety and system compatibility.
a) Service pressure
All nozzles and receptacles are designed to have a service pressure of either 20 MPa (200 bar) for B200
and C200 connectors or 25 MPa (250 Bar) for B250 and C250 connectors.
b) Design life
Frequency of use is the second parameter to be considered. Since frequency of use will differ with the
nozzle/receptacle application (i.e. public sector, fleet employee and residential), all receptacles will be
tested at 10 000 connect/disconnect cycles for compliance with this document. In addition, all nozzles
will be tested according to the following frequency use classifications, as applicable:
— Class A Nozzle, specifying high frequency use, with a cycle life of 100 000 cycles and equating to
approximately 100 fills per day for three years;
— Class B Nozzle, specifying medium frequency use, with a cycle life of 20 000 cycles and equating to
approximately 10 fills per day for five years.
c) Training
Operator training required is in accordance with national requirements.
vi © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 14469:2017(E)
Road vehicles — Compressed natural gas (CNG) refuelling
connector
1 Scope
This document specifies CNG refuelling nozzles and receptacles constructed entirely of new and unused
parts and materials, for road vehicles powered by compressed natural gas. A CNG refuelling connector
consists of, as applicable, the receptacle and its protective cap (mounted on the vehicle) and the nozzle.
This document is applicable only to such devices designed for a service pressure of 20 MPa (200 bar)
and 25 MPa (250 bar), to those using CNG according to ISO 15403-1 and ISO 15403-2 and having
standardized mating components, and to connectors that prevent natural gas vehicles from being
fuelled by dispensers with service pressures higher than that of the vehicle, while allowing them to
be fuelled by dispensers with service pressures less than or equal to the vehicle fuel system service
pressure.
This document refers to service pressures of 20 MPa and 25 MPa for:
— size 1: B200 and B250;
— size 2: C200 and C250.
1)
NOTE All references to pressures, given in megapascals and bar are 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 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
ISO 15500-2, Road vehicles — Compressed natural gas (CNG) fuel system components — Part 2:
Performance and general test methods
ISO 15501-1, Road vehicles — Compressed natural gas (CNG) fuel systems — Part 1: Safety requirements
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain
terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
5 2
1) (1 bar = 0,1 MPa = 10 Pa; 1 MPa = 1 N/mm )
ISO 14469:2017(E)
3.1
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
3.2
hydrostatic pressure
pressure to which a component is taken to verify the structural strength of the component
3.3
working pressure
maximum pressure that a CNG refuelling connector can be expected to withstand in actual service
3.4
service pressure
settled pressure of 20 MPa (200 bar) at a uniform gas temperature of 15 °C for B200 and C200
connectors or 25 MPa (250 Bar) for B250 and C250 connectors
3.5
positive locking means
feature which requires actuation of an interlocking mechanism to allow connection/disconnection of
the nozzle from the receptacle
3.6
CNG refuelling nozzle
device which permits quick connection and disconnection of fuel supply hose to the CNG receptacle in a
safe manner, hereafter referred to as nozzle
3.7
CNG refuelling receptacle
device connected to a vehicle or storage system which receives the CNG refuelling nozzle and permits
safe transfer of fuel, hereafter referred to as receptacle
3.8
CNG refuelling connector
joined assembly of CNG refuelling nozzle and receptacle, hereafter referred to as connector
4 General construction requirements
4.1 Nozzles and receptacles manufactured in accordance with this document shall be designed in
accordance with reasonable concepts of safety, durability and maintainability.
4.2 Nozzles and receptacles shall be well fitted and manufactured in accordance with good engineering
practice. All construction requirements may be met by either the construction specified in this document
or another construction that gives at least equivalent performance.
4.3 Nozzles and receptacles shall be
— designed to minimize the possibility of incorrect assembly,
— designed to be secure against displacement, distortion, warping or other damage, and
— constructed to maintain operational integrity under normal and reasonable conditions of handling
and usage.
2 © ISO 2017 – All rights reserved

ISO 14469:2017(E)
4.4 Nozzles and receptacles shall be manufactured of materials suitable and compatible for use with
CNG at the pressure and the temperature ranges to which they will be subjected (see Clause 1).
The minimum temperature range shall be selected by the manufacturer between the following ranges:
— 40 °C to 85 °C or 120°C as applicable;
— 20 °C to 85°C or 120 °C as applicable.
NOTE 1 The lower temperature limit depends on whether the component is to be used for mild or cold weather
NOTE 2 The high temperature limit depends on whether the component will be installed inside the engine
compartment (120°C) or outside of the engine compartment (85°C).
4.5 Nozzles and receptacles constructed of brass shall use brass alloys with a copper mass
content ≤70 %. This will ensure proper material compatibility with all the constituents of natural gas.
4.6 Separate external three-way valves shall be constructed and marked so as to indicate clearly the
open, shut and vent positions.
4.7 Nozzles and receptacles shall be operated either to connect or disconnect without the use of tools.
4.8 The receptacle shall be mounted on the vehicle in accordance with ISO 15501-1.
4.9 Jointing components shall provide gas-tight sealing performance.
5 Nozzles
5.1 Nozzles shall be one of the three types according to a), b) and c). See also Annex A.
a) Type 1 is a nozzle for use with dispensing hoses that remain fully pressurized at dispenser
shutdown.
The nozzle shall not allow gas to flow until a positive connection has been achieved. The nozzle shall be
equipped with an integral valve or valves, incorporating an operating mechanism which first stops the
supply of gas and safely vents the trapped gas before allowing the disconnection of the nozzle from the
receptacle. The operating mechanism shall ensure that the vent valve is in the open position before the
release mechanism can be operated and that the gas located between the nozzle shut-off valve and the
receptacle check valve is safely vented prior to nozzle disconnection (see 10.2).
b) Type 2 is a nozzle for use with dispensing hoses that remain fully pressurized at dispenser
shutdown. A separate three-way valve connected directly, or indirectly, to the inlet of the nozzle is
required to safely vent trapped gas prior to nozzle disconnection. The nozzle shall not permit the
flow of gas if unconnected. Venting is required prior to disconnection of the nozzle (see 10.2).
c) Type 3 is a nozzle for use with dispensing hoses which are automatically depressurized — 0,5 MPa
(5 bar) and below — at dispenser shutdown (see 10.2).
In addition, nozzles shall be classified in terms of cycle life as follows:
— Class A, specifying high frequency use, with a cycle life of 100 000;
— Class B, specifying low frequency use, with a cycle life of 20 000.
5.2 Venting or de-pressurization of all nozzle types is required prior to disconnection. Disconnection
of all nozzles shall be able to be accomplished in accordance with 10.2.
ISO 14469:2017(E)
5.3 The method for attaching the nozzle to the fuel dispensing system hose shall not rely on the joint
threads between the male and female threads for sealing (e.g. conical threads).
5.4 The three-way valve exhaust port of Type 1 and Type 2 nozzles shall be protected from the ingress
of foreign particles and fluid which would hamper the operation of the valve.
5.5 The portions of a nozzle which are held by the user for connection or disconnection may be
thermally insulated.
5.6 A Type 1 nozzle shall bear a marking indicating the direction of the open and shut operation if it
contains a rotating actuation mechanism.
5.7 The interface surface of the nozzle shall be constructed of material having a hardness >75 Rockwell
B (HRB 75) and shall be non-sparking and conductive (see 10.11.5 and 10.15).
The exposed surfaces of the nozzles shall be made of non-sparking materials (see 10.11.5 and 10.15).
5.8 Nozzles shall comply with the performance requirements of Clause 10 to ensure interchangeability.
6 Standard receptacle dimensions
6.1 Standard receptacle dimensions Size 1 (B200, B250)
A Size 1 receptacle shall comply with the design specifications shown in Figure 1 and 2.
4 © ISO 2017 – All rights reserved

ISO 14469:2017(E)
Dimensions in millimetres
Surface roughness ≤ Ra 3,2 µm
Key
This area shall be kept free of all components
a
Minimum length of the receptacle that is clear of provisions for attachment of the receptacle or
protective caps.
b
Sealing surface equivalent to N°110 O-ring of dimensions:
—  Internal diameter: 9,19 ± 0,127; width: 2,62 ± 0,076;
—  Sealing surface finish: 0,8 μm to 0,05 μm;
—  Material hardness: 75 HRB minimum.
Figure 1 — B200 receptacle
ISO 14469:2017(E)
Dimensions in millimetres
Key
This area shall be kept free of all components
a
Minimum length of the receptacle that is clear of provisions for attachment of the receptacle or protective caps.
b
Sealing surface equivalent to N°110 O-ring of dimensions:
—  Internal diameter: 9,19 ± 0,127; width: 2,62 ± 0,076;
—  Sealing surface finish: 0,8 μm to 0,05 μm;
—  Material hardness: 75 HRB minimum.
Figure 2 — B250 receptacle
6 © ISO 2017 – All rights reserved

ISO 14469:2017(E)
6.2 Standard receptacle dimensions size 2 (C200, C250)
A Size 2 receptacle shall comply with the design specifications detailed in Figures 3 and 4.
ISO 14469:2017(E)
Key
This area shall be kept free of all components
a
Minimum length of the receptacle that is clear of provisions for attachment of the receptacle or protective caps.
b
Sealing surface equivalent to N°208 O-ring of dimensions:
—  Internal diameter: 15,47 ± 0,23; width: 3,53 ± 0,1;
—  Sealing surface finish: 0,8 μm to 0,05 μm;
—  Material hardness: 75 HRB minimum.
Figure 3 — C200 receptacle
8 © ISO 2017 – All rights reserved

ISO 14469:2017(E)
Key
This area shall be kept free of all components
a
Minimum length of the receptacle that is clear of provisions for attachment of the receptacle or protective caps.
b
Sealing surface equivalent to N°208 O-ring of dimensions:
—  Internal diameter: 15,47 ± 0,23; width: 3,53 ± 0,1;
—  Sealing surface finish: 0,8 μm to 0,05 μm;
—  Material hardness: 75 HRB minimum.
Figure 4 — C250 receptacle
ISO 14469:2017(E)
7 Receptacles
7.1 Receptacles shall be evaluated using at least two different test nozzles, each nozzle representing a
different locking technology.
The failure of any test conducted with the receptacle and nozzle test samples shall constitute a failure of
the submitted receptacle, unless the manufacturer can prove the problem was caused by the test nozzle.
7.2 Receptacle designs which employ means, on the back diameter as shown in Figure 5, to
accommodate mounting, or for mounting accessories or marking purposes, shall not have such means
extend beyond the back diameter dimensions of the profile as specified by Figure 1 to Figure 4, as
applicable. Acceptable means include wrench flats, dust cap anchoring grooves, use of hex stock,
undercutting for marking, and threads for pressure-tight caps. Receptacle designs shall not compromise
the interchangeability requirements specified in Annex B.
Key
1 back diameter
Figure 5 — Receptacle design
7.3 The receptacle shall be equipped with an internal check valve to prevent the escape of gas. The
check valve shall be of the non-contact type, opening by differential pressure only.
7.4 The method for attaching the receptacle to the vehicle fuel system shall not rely on the joint
between the male and female threads for sealing, such as conical threads.
7.5 The interfacing surface of the receptacle shall be constructed of material having a
hardness >75 Rockwell B (HRB 75) and shall be non-sparking and conductive (see 10.11.5 and 10.15).
The exposed surfaces of devices shall be made of non-sparking materials (see 10.11.5).
7.6 Receptacles shall have a means to prevent the ingress of fluids and foreign matter.
7.7 The function specified in 7.6 may also be met by either a protective cap (see 10.4) or a pressure-
tight protective cap (see 10.16).
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ISO 14469:2017(E)
7.8 The receptacle shall have provisions to be firmly attached to the vehicle and shall comply with
applicable abnormal load tests (see 10.7).
7.9 Receptacles shall have a cycle life of >10 000 cycles.
8 Instructions
8.1 Information required under this clause for instructions and provisions to be specified shall be
given in an easily understood form.
8.2 Special tools required for connection of receptacles to tubing and assembly and disassembly of
three-way valve parts shall be clearly identified in the instructions.
8.3 The manufacturers of receptacles, nozzles and three-way valves shall provide clear and concise
printed instructions and diagrams in a form that can be easily understood and adequate for
a) proper field assembly,
b) installation,
c) maintenance,
d) replacement of components as appropriate,
e) safe operation by all users,
f) suitability and use,
g) storage and handling.
9 Marking
9.1 Information required under this clause shall be clear and legible. Marking should be embossed,
engraved, cast, stamped or otherwise formed in the part. This includes markings baked into an enamelled
surface.
9.2 Nozzles and receptacles shall bear the following information:
a) manufacturer’s or dealer’s name, trademark or symbol;
b) model designation;
c) B200 or B250 or C200 or C250;
d) applicable type and class (see 5.1);
e) operating temperature range.
9.3 Nozzles and receptacles shall each bear a manufacturing date code.
9.4 Marking to identify this document shall be provided for each system, it may be located on the
device, on the package or on a notice placed inside the package in which the device is shipped.
ISO 14469:2017(E)
10 Tests
10.1 General requirements
The nozzle and receptacle tested shall be of the receptacle and nozzle designs specified from Clauses 1
to 9. Unless otherwise stated,
a) tests shall be conducted at room temperature (20 ± 5) °C,
b) all pressure or leak tests shall be conducted with dry air or dry nitrogen, and
c) devices shall be conditioned to attain equilibrium conditions.
Unless otherwise specified all pressures, temperatures and dimensions shall have a maximum tolerance
of ±5 %.
Type 2 nozzles shall be tested in series, with either a three-way valve or some other means to
independently pressurize and vent the nozzle. The three-way valve shall not affect the temperature,
durability or flow characteristics of the nozzle. Failure of the three-way valve shall not constitute
failure of the nozzle. A three-way valve supplied for utilization with a Type 2 nozzle shall be evaluated
separately.
Nozzle tests shall be done with the test fixtures, specified in Annex B, as applicable. A new receptacle
test sample shall be used for each nozzle test. The failure of any test conducted with the nozzle and
receptacle test sample shall constitute a failure of the nozzle design.
10.2 User interface
The appearance of the nozzle and receptacle shall be such as to clearly suggest the proper method of use.
It shall not be possible to deliver gas using Type 1 nozzles unless the nozzle and receptacle are connected
properly and positively locked.
Upon disconnection, Type 1, 2 and 3 nozzles shall stop the flow of gas. No hazardous condition shall
result from disconnection. Type 3 nozzles shall be under a pressure of 0,7 MPa (7 bar) during this test.
When the contained pressure is less than or equal to 0,7 MPa (7 bar), all nozzles shall be capable of
being disconnected with forces or torques not exceeding 225 N or 7 N·m.
The disconnection force/torque shall be applied in a direction that tends to unhook and release the
nozzle. The force/torque shall be applied to the unhooking/release actuator. The torque shall be
applied through axis rotation of the nozzle handle equal to the exterior handling surface of the nozzle
uncoupling mechanism and in a direction such that the nozzle tends to unhook and be released.
On depressurized devices, the axial force to connect and lock or unlock and disconnect the device shall
be ≤90 N.
On a positive locking device that incorporates a rotary locking means, the torque to lock or unlock the
locking means shall not exceed 1 N·m for a device having a diameter of ≤25,4 mm and 1,7 N⋅m for a
device having a diameter >25,4 mm.
The minimum force to facilitate disconnection at pressures of 6,25 MPa (62,5 bar) or more, shall be 2,5
times compared to the disconnection force when Types 1 and 2 nozzles are depressurized or when type
3 nozzles are at a pressure of 0,7 MPa (7 bar). Type 1 nozzles shall be tested with the vent port plugged.
10.3 Impact resistance
A nozzle shall be connected to a 4,6 m length of 9,5 mm internal diameter (ID) fuelling hose, conditioned
at −40 °C or lower for 24 h and then dropped 1,8 m onto a concrete floor as shown in Figure 6. The nozzle
shall be dropped 10 times, then pressurized to service pressure and subjected to 10 additional drops.
12 © ISO 2017 – All rights reserved

ISO 14469:2017(E)
Following this, the nozzle shall be capable of normal connection and disconnection to the receptacle. In
addition, the nozzle shall comply with all leakage tests specified in this document (see 10.5).
Key
1 suitable support
2 refuelling hose (9,5 mm diameter)
3 nozzle
4 concrete floor
Figure 6 — Impact resistance test arrangement
10.4 Receptacle protective caps
There shall be no permanent distortion or damage to any receptacle protective cap when tested as
follows.
A solid steel ball with a diameter 50 mm shall be dropped from a height of 300 mm striking the
protective cap installed on the receptacle. The test shall be conducted at −40 °C or lower and at 85 °C
or higher at a minimum of five points of impact most likely to cause damage to the receptacle and the
protective cap.
10.5 Leakage at room temperature
10.5.1 Nozzle
A nozzle, whether coupled or uncoupled, shall be either bubble-free for 1 min during the leak test or
have a leak rate of <20 cm /h (normal), when tested as follows.
Tests shall be conducted at 0,5 MPa (5 bar), then at 1,5 times the service pressure and then again at
0,5 MPa (5 bar).
Pressurized air or nitrogen shall be applied to the inlet of the coupled (or uncoupled) device. The external
body shall then be checked for bubble-tight leakage using immersion in room temperature water.
All connectors shall be checked for leakage from the time of connection, through full fuel flow, to the
time of disconnection.
NOTE The trapped volume of gas released during disconnection is not considered as leakage.
If there are no bubbles for a period of 1 min, the sample passes the test. If bubbles are detected, then the
leak rate shall be measured by either a vacuum test using helium gas (global accumulation method) or
an equivalent method.
10.5.2 Receptacle
The receptacle check valve shall be either bubble-free for 1 min during the leak test or have a leak rate
of <20 cm /h (normal) when tested as follows.
ISO 14469:2017(E)
Tests shall be conducted at 0,5 MPa (5 bar), then at 1,5 times the service pressure and then again at
0,5 MPa (5 bar).
The receptacle shall be connected to a pressure vessel capable of safely accommodating the specified
test pressures. The receptacle and pressure vessel shall then be pressurized. Once the pressure
vessel has reached the specified test pressure, the upstream portion of the receptacle shall be quickly
depressurized and the receptacle check valve checked for leakage.
10.6 Valve operating handle
If a nozzle is equipped with a valve operating handle, it shall be capable of withstanding double the
manufacturer’s specified operating torque or force, without damage to the operating handle or the
operating handle stops.
The test shall be performed with the torque or force applied in both the opening and closing directions
a) with the nozzle properly connected to a receptacle, and
b) with the nozzle intentionally misaligned relative to the receptacle.
10.7 Abnormal loads
10.7.1 General
The connected nozzle and receptacle shall be subjected to the following abnormal loads for a period of
5 min in service. These tests are to be conducted separately:
a) pulls a along the longitudinal axis of the nozzle or receptacle;
b) moments b applied in a worst-case manner.
The nozzle and receptacle shall be able to withstand abnormal loads of a = 1 350 N and b = 120 N·m
without distortion or damage, and of a = 2 700 N and b = 240 N·m without becoming so damaged as to
leak. The load and moment arm shall be measured about a point 41 mm from the front of the receptacle
to the hose inlet of the nozzle (see Figure 6).
After completing these tests, the receptacle shall comply with 10.5.
14 © ISO 2017 – All rights reserved

ISO 14469:2017(E)
Key
1 receptacle
2 abnormal load reference
3 moment
4 nozzle
Figure 7 — Abnormal load test
10.7.2 Test in the unpressurized condition
The receptacle test fixture and nozzle shall not be pressurized during the abnormal load tests.
The receptacle shall be mounted as a cantilever to a supporting member in accordance with the
manufacturer’s instructions. For the purposes of this test, the supporting member shall be capable of
withstanding the specified loads without displacement or deflection.
The loads applied and the device’s ability to resist damage shall be as specified in 10.7.1. After
completion of the tests, the receptacle shall comply with 10.5.
10.7.3 Test in the pressurized condition
The receptacle test fixture and nozzle shall be pressurized 1,25 times service pre
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