SIST EN ISO 16380:2018

SLOVENSKI STANDARD
01-oktober-2018
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]GRSROQLORP$
Road vehicles - Blended fuels refuelling connector (ISO 16380:2014, including Amd
1:2016)
Straßenfahrzeuge - Krafstofftankstutzen (ISO 16380:2014, including Amd 1:2016)
Véhicules routiers - Pistolet de remplissage pour les mélanges de carburants gazeux
(ISO 16380:2014, including Amd 1:2016)
Ta slovenski standard je istoveten z: EN ISO 16380:2018
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 16380
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2018
EUROPÄISCHE NORM
ICS 75.200
English Version
Road vehicles - Blended fuels refuelling connector (ISO
16380:2014, including Amd 1:2016)
Véhicules routiers - Pistolet de remplissage pour les Straßenfahrzeuge - Betankungsanschluss für
mélanges de carburants gazeux (ISO 16380:2014, y Mischkraftstoffe (ISO 16380:2014, einschließlich Amd
compris Amd 1:2016) 1:2016)
This European Standard was approved by CEN on 2 February 2018.

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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16380:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 16380:2014, including Amd 1:2016 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 16380:2018 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 December 2018, and conflicting national standards
shall be withdrawn at the latest by December 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.
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 16380:2014, including Amd 1:2016 has been approved by CEN as EN ISO 16380:2018
without any modification.
INTERNATIONAL ISO
STANDARD 16380
First edition
2014-06-01
Road vehicles — Blended fuels
refuelling connector
Véhicules routiers — Pistolet de remplissage pour les mélanges
de carburants gazeux
Reference number
ISO 16380:2014(E)
©
ISO 2014
ISO 16380:2014(E)
© ISO 2014
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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved

ISO 16380:2014(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 General construction requirements . 3
5 Nozzles . 5
6 Standard receptacle dimensions . 6
6.1 Standard receptacle dimensions Size 1 (M200, M250, M350) . 6
6.2 Standard receptacle dimensions size 2 (N200, N250) .10
7 Receptacles .12
8 Instructions .12
9 Marking .13
10 Tests .14
10.1 General requirements .14
10.2 User interface .14
10.3 Impact resistance .15
10.4 Receptacle protective caps.15
10.5 Leakage at room temperature .15
10.6 Valve operating handle .16
10.7 Abnormal loads .16
10.8 Rocking/twisting.17
10.9 Mounting hardware torque .18
10.10 Leakage test at low and high temperatures .18
10.11 Durability .19
10.12 Hydrostatic strength .22
10.13 Corrosion resistance .22
10.14 Deformation .23
10.15 Non-igniting evaluation .23
10.16 Vibration resistance .23
10.17 Hydrogen embrittlement .23
10.18 Pressure tight protective cap (PTPC) .24
Annex A (informative) Table of nozzle characteristics .32
Annex B (informative) Manufacturing and production test plan .33
Annex C (informative) Receptacle test fixture .34
Annex D (informative) Nozzle clearance dimensions .44
Bibliography .45
ISO 16380:2014(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 fuel.
iv © ISO 2014 – All rights reserved

ISO 16380:2014(E)
Introduction
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 receptacle certified to this International Standard will be functionally compatible from a safety and
performance perspective with all listed nozzles of compatible profile and system pressure.
As there can eventually be many different kinds of nozzles and receptacles available from a variety
of manufacturers which, for safety reasons, shall all be compatible with each other, this International
Standard specifies a series of receptacle profiles. These standard profiles incorporate the design
specifications (mating materials, geometry, and tolerances) which can 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 four
main parameters affect user safety and system compatibility.
INTERNATIONAL STANDARD ISO 16380:2014(E)
Road vehicles — Blended fuels refuelling connector
1 Scope
This International Standard applies to compressed blended fuels vehicle nozzles and receptacles
hereinafter referred to as devices, constructed entirely of new, unused parts and materials. Compressed
blended fuels fuelling connection nozzles consist of the following components, as applicable:
a) Receptacle and protective cap (mounted on vehicle) (see Clause 7);
b) Nozzle (mounted on dispenser side) (see Clause 5).
This International Standard applies to devices which have a service pressure of 20 MPa, 25 MPa, and
35 MPa hereinafter referred to in this International Standard as [see 9.1 c)]:
— size 1: M200, M250, and M350;
— size 2: N200 and N250.
This International Standard refers to service pressures of 20 MPa, 25 MPa, and 35 MPa for size 1 and
20 MPa and 25 MPa for size 2.
This International Standard applies to devices with standardised mating components (see 5.8 and 7.7).
This International Standard applies to connectors which
a) prevent blended fuels vehicles from being fuelled by dispenser stations with working pressures
higher than the vehicle fuel system working pressure,
b) allow blended fuels vehicles to be fuelled by dispenser stations with working pressures equal to or
lower than the vehicle fuel system working pressure,
c) allow blended fuels vehicles to be fuelled by dispenser stations for compressed natural gas,
d) allow blended fuels vehicles to be fuelled by compressed natural gas dispenser stations with working
pressures equal to or lower than the vehicle fuel system working pressure,
e) prevent blended fuels vehicles size 1 being refuelled on blended fuels dispenser stations equipped
with a size 2 nozzle and vice versa,
f) prevent natural gas vehicles from being fuelled by blended fuels station, and dispensers, and
g) prevent pure hydrogen vehicles from being fuelled by blended fuels station dispensers.
This International Standard is applicable to mixtures of hydrogen from 2 % to 30 % in volume and
compressed natural gas containing:
a) natural gas in accordance with ISO 15403-1 and ISO 15403-2;
b) pure hydrogen in accordance with ISO 14687-1 or ISO/TS 14687-2.
All references to pressures (MPa) throughout this International Standard are to be considered gauge
pressures unless otherwise specified.
ISO 16380:2014(E)
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 1431-1, Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Part 1: Static and
dynamic strain testing
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
ISO 11114-4, Transportable gas cylinders — Compatibility of cylinder and valve materials with gas
contents — Part 4: Test methods for selecting metallic materials resistant to hydrogen embrittlement
ISO 14175, Welding consumables — Gases and gas mixtures for fusion welding and allied processes
ISO 14687-1, Hydrogen fuel — Product specification — Part 1: All applications except proton exchange
membrane (PEM) fuel cell for road vehicles
ISO/TS 14687-2, Hydrogen Fuel — Product Specification — Part 2: Proton exchange membrane (PEM) fuel
cell applications for road vehicles
ISO 15500-2:2012, Compressed natural gas (CNG) fuel system components — Part 2: Performance and
general test methods
ISO 15403-1, Natural gas — Natural gas for use as a compressed fuel for vehicles — Part 1: Designation of
the quality
ISO/TR 15403-2, Natural gas — Natural gas for use as a compressed fuel for vehicles — Part 2: Specification
of the quality
EN 10204, Metallic products — Types of inspection documents
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
air, dry
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 tested to verify the structural strength of the component
3.3
working pressure
maximum pressure that the blended fuels refuelling connector can be expected to withstand in actual
service (calculatory base: service pressure times 1,25)
3.4
service pressure
settled pressure of 20 MPa, 25 MPa, and 35 MPa at a uniform gas temperature of 15 °C
3.5
positive locking means
feature which requires actuation of an interlocking mechanism to allow connection/disconnection of
the nozzle from the receptacle
2 © ISO 2014 – All rights reserved

ISO 16380:2014(E)
3.6
compressed blended fuels refuelling nozzle
device which permits quick connection and disconnection of fuel supply hose to the compressed blended
fuels receptacle in a safe manner, hereafter referred to as compressed blended fuels nozzle
3.7
compressed blended fuels refuelling receptacle
device connected to a vehicle or storage system which receives the compressed blended fuels nozzle and
permits safe transfer of fuel, hereafter referred to as receptacle
3.8
compressed blended fuels refuelling connector
joint assembly of compressed blended fuels nozzle and receptacle, hereafter referred to as connector
3.9
hydrogen embrittlement
process by which various metals, most importantly high-strength steel, become brittle and crack
following exposure to hydrogen
3.10
compressed blended fuels
blended fuel is a mixture out of hydrogen from 2 % to 30 % in volume and natural gas which is used as
a vehicular fuel at a specified pressure as in the Introduction point 2
3.11
leak test gas
gas used for leak testing purposes
3.12
cycle life
connections and disconnections to a nozzle
3.13
service life
operations of the check valve
4 General construction requirements
a) There are two different sizes of refuelling systems, size 1 and size 2.
Size 1 should suit the need of smaller vehicles with a limited tanks size. Therefore, the flow diameter is
limited by the inner front diameter of the receptacle – in this case ⌀ 7,8 mm ± 0,2 mm.
Size 2 should suit the need of commercial vehicles like busses and trucks. Therefore, the flow diameter
is limited by the inner front diameter of the receptacle – in this case ⌀ 12 mm ± 0 2mm.
Also, the profile of the two different sizes is so different that no cross connection between the sizes is
possible.
b) Working pressure (= 1,25 times service pressure). All nozzles and receptacles are designed to have
a working pressure of:
ISO 16380:2014(E)
Code Service pressure Working pressure
Size 1
M200 20 MPa 25 MPa
M250 25 MPa 31,25 MPa
M350 35 MPa 43,75 MPa
Size 2
N200 20 MPa 25 MPa
N250 25 MPa 31,25 MPa
c) 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
International Standard. In addition, all nozzles shall be tested according to the following frequency
use classifications, as applicable.
— Class A Nozzle - This class specifies high frequency use, with a cycle life of 100 000. This equates
to approximately 100 fills per day for three years.
— Class B Nozzle - This class specifies medium frequency use, with a cycle life of 20 000 cycles.
This equates to approximately 10 fills per day for five years.
d) Training. Operator. Training required is in accordance with national requirements.
4.1 Compressed blended fuels nozzles and receptacles shall be well fitted and manufactured in
accordance with good engineering practice. All construction requirements can be met by either the
construction specified in this International Standard or another construction that gives at least equivalent
performance.
4.2 Compressed blended fuels nozzles and receptacles shall be:
— designed to minimize the possibility of incorrect assembly;
— designed to be secure against displacement, distortion, warping, or other damage;
— constructed to maintain operational integrity under normal and reasonable conditions of handling
and usage.
4.3 Nozzles and receptacles shall be manufactured of materials suitable and compatible for use with
compressed blended fuels at the pressure and the temperature ranges to which it will be subjected.
4.3.1 The temperature ranges shall be:
Table 1 — Temperature ranges
Location on board
Location a Location b
Cold −40 °C to 120 °C −40 °C to 85 °C
Moderate −20 °C to 120 °C −20 °C to 85 °C
Location a — Inside the engine compartment in case of internal combustion engine vehicle. The
receptacle shall be installed far from either heat or sparking sources and in a vented area.
Location b — Elsewhere in case of internal combustion engine vehicle.
4 © ISO 2014 – All rights reserved

ISO 16380:2014(E)
4.4 Compressed blended fuels nozzles and receptacles shall be constructed out of materials which have
to be proven for the intent of withstanding a blended fuels mixture at the given pressures, temperatures,
and contents of the fuel that can be expected in this system.
4.5 Separate external three-way valves shall be constructed and marked so as to indicate clearly the
open, shut, and vent positions.
4.6 Compressed blended fuels nozzles and receptacles shall be operated either to connect or disconnect
without the use of tools.
4.7 Jointing components shall provide gas tight sealing performance.
Unless otherwise specified, all tests shall be conducted using dry hydrogen, helium, or blends of nitrogen
with a minimum 5 % of hydrogen. Test shall be performed by qualified personnel and appropriate safety
measures shall be taken. The dew point of the test gas at the test pressure shall be at the temperature at
which there is no icing, or hydrate or liquid formation. The dew point of the test gas at the test pressure
shall be at the temperature at which there is no icing, or hydrate or liquid formation.
5 Nozzles
5.1 Nozzles shall be one of three types as described in a) to c). (See also Annex A)
a) Type 1, which 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 the vent valve is in the
open position before the release mechanism can be operated and 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, which 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, which is a nozzle for use with dispensing hoses which are automatically depressurised
(0,5 MPa and below) at dispenser shutdown (see 10.2).
In addition, nozzles shall be classified in terms of cycle life as follows:
— Class A - This class specifies high frequency use, with a cycle life of 100 000.
— Class B - This class specifies 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 capable of being accomplished in accordance with 10.2.
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, such as conical threads.
5.4 The three-way valve vent 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. It has to be considered that the
vented gas has to be lead into a safe direction.
5.5 The portions of a nozzle which are held by the user for connection or disconnection can be thermally
insulated or it shall be ensured that no abnormal dangerous temperatures can be transferred to the user.
ISO 16380:2014(E)
5.6 A Type 1 nozzle shall bear a marking in accordance with Clause 9, indicating the direction of the
open and shut operation of the actuating mechanism, if necessary.
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).
A proof for adequate hardness shall be either a Mill Sheet or an EN 10204-3.1 certificate or a similar
acceptable certificate if hardness is mentioned on there.
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.
5.9 The vent line of Type 1 and Type 2 nozzles must withstand the maximum working pressure at full
flow conditions.
6 Standard receptacle dimensions
6.1 Standard receptacle dimensions Size 1 (M200, M250, M350)
A receptacle size 1 shall comply with the design specifications detailed in Figures 1 to 3.
6 © ISO 2014 – All rights reserved

ISO 16380:2014(E)
Key
this area shall be kept free of all components
1 sealing surface equivalent to No. 110 O-ring of dimensions:
9,19 mm ± 0, 127 mm ID
2,62 mm ± 0, 076 mm width
sealing surface finish 0,8 μm to 0, 05 μm
material hardness 75 Rockwell B (HRB 75) minimum
Figure 1 — Size 1 — M200 Receptacle
ISO 16380:2014(E)
Key
this area shall be kept free of all components
1 sealing surface equivalent to No. 110 O-ring of dimensions:
9,19 mm ± 0, 127 mm ID
2,62 mm ± 0, 076 mm width
sealing surface finish 0,8 μm to 0, 05 μm
material hardness 75 Rockwell B (HRB 75) minimum
Figure 2 — Size 1 — M250 Receptacle
8 © ISO 2014 – All rights reserved

ISO 16380:2014(E)
Key
this area shall be kept free of all components
1 sealing surface equivalent to No. 110 O-ring of dimensions:
9,19 mm ± 0, 127 mm ID
2,62 mm ± 0, 076 mm width
sealing surface finish 0,8 μm to 0, 05 μm
material hardness 75 Rockwell B (HRB 75) minimum
Figure 3 — Size 1 — M350 Receptacle
Depending on the pressure range, M200 and M250 receptacles have to have a minimum length of 42 mm
and M350, 48,5 mm which is clear of provisions for attachment of receptacle or protective caps.
NOTE This space can be used from nozzle manufacturers for coding purposes.
ISO 16380:2014(E)
6.2 Standard receptacle dimensions size 2 (N200, N250)
A receptacle size 2 shall comply with the design specifications detailed in Figures 4 to 5.
Key
1 sealing ID = ⌀15,47 ± 0,1 width = ⌀3,53 ± 0,2
this area shall be kept free of all components
surface roughness < Ra 3,2 μm
sealing surface finish 0,8 μm to 0,05 μm
material hardness 75 Rockwell B (HRB 75) minimum
Figure 4 — Size 2 N200 Receptacle
10 © ISO 2014 – All rights reserved

ISO 16380:2014(E)
Key
1 sealing ID = ⌀15,47 ± 0,1 width = ⌀3,53 ± 0,2
this area shall be kept free of all components
surface roughness < Ra 3,2 μm
sealing surface finish 0,8 μm to 0,05 μm
material hardness 75 Rockwell B (HRB 75) minimum
Figure 5 — Size 2 — N250 Receptacle
ISO 16380:2014(E)
Depending on the pressure range, N200 and N250 receptacles have to have a minimum length of 60,5 mm
which is clear of provisions for attachment of receptacle or protective caps.
NOTE This space can be used from nozzle manufacturers for coding purposes.
7 Receptacles
7.1 Receptacles shall comply with Clauses 1 to 10 of this International Standard and shall be evaluated
with at least two different test nozzles which are already certified to this International Standard – if
available in the market - each nozzle representing a different locking technology. If in future other locking
mechanisms will be invented the amount of nozzle types tested to shall reflect the actual 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 position of the back side ring as specified in
Figures 1 to 3 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 in Figures 1
to 3, 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 C.
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 use of threaded connections which rely on the joint between the male and female threads for
sealing is prohibited.
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 described in 7.6 can also be met by either a protective cap (see 10.4) or a pressure
tight protective cap (see 10.18).
7.8 Additionally a filter of adequate size should be integrated.
7.9 The receptacle shall have provisions to be firmly attached to the vehicle and shall comply with
applicable abnormal load tests (see 10.7).
7.10 Receptacles shall have a cycle life of >10 000 cycles but a service life of >100 000 cycles.
8 Instructions
Information required under this section for instructions and provisions specified are required to be in
an easily understood form.
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.
12 © ISO 2014 – All rights reserved

ISO 16380:2014(E)
Manufacturers of receptacles, nozzles, and three-way valves shall provide clear and concise printed
instruction 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, and
g) storage and handling.
9 Marking
Information required under this section for marking, provisions specified are required to be in a form
easily understood. Marking should be embossed, cast, stamped or otherwise formed in the part. This
includes markings baked into an enamelled surface.
9.1 Nozzles and receptacles shall bear the following information.
a) The manufacturer’s or dealer’s name, trademark or symbol.
b) The model designation.
c) M200 or M250 or M350 or N200 or N250.
d) The applicable Type and Class (see 5.1).
e) If required, a certification mark.
Marking shall remain legible for the life of the component and shall not be removable without destroying
or defacing the marking. Permanent adhesive labels are permissible, or markings can be etched, stamped,
or moulded into the component.
9.2 Nozzles and receptacles shall each bear a date code marking.
The four-digit date code marking shall consist of at least four adjacent digits determined as follows:
a) the first and second digits shall indicate the calendar year in which the nozzle, receptacle or three-
way valve was manufactured (e.g. 96 for 1996 and 00 for 2000);
b) the third and fourth digits shall indicate the week in which the nozzle, receptacle or three-way valve
was manufactured (e.g. 03 for the third week of the year). For the purpose of this marking, a week
shall begin at 00:01 h on Sunday and end at 24:00 h on Saturday.
A date code can be used for more than one week, however, it shall not be used for more than four
consecutive weeks, or for more than two weeks into the next calendar year.
When a four digit date code is not practical, the manufacturer shall submit a plan acceptable to the
certifying agency which will outline means of establishing the date of manufacture so that it is traceable
to the purchaser.
Additional numbers, letters, or symbols can follow the four digit number specified in “a” and “b”. If
additional numbers are used, they shall be separated from the date code.
ISO 16380:2014(E)
9.3 A marking to identify this International Standard shall be provided for each system. This marking
can be located on the package or on a notice placed inside the package in which the device is shipped.
10 Tests
10.1 General requirements
A nozzle and receptacle shall be tested with receptacle and nozzle designs specified under Clause 1
through Clause 9.
Unless otherwise stated
a) tests shall be conducted at room temperature (20 ± 5) °C,
b) all pressure tests shall be conducted with dry air or dry nitrogen,
c) all leak tests shall be conducted with 99,996 % Helium (Helium 4.6 according to ISO 14175), and
d) devices shall be conditioned to attain equilibrium conditions.
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 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 that is supplied for utilization with a Type 2 nozzle, shall be evaluated separately.
Nozzle tests are to be done with the test fixtures, as specified in Annex C, 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 at 0,7 MPa during this test.
When the contained pressure is less than or equal to 0,7 MPa, all nozzles shall be capable of being
disconnected with forces or torques not exceeding 225 N or 7 Nm.
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 such a direction that tends to unhook and release the nozzle.
On depressurised devices, the axial force to connect and lock or unlock and disconnect the device shall
be less than or equal to 90 N.
On a positive locking device which incorporates a rotary locking means, the torque to lock or unlock the
locking means shall not exceed 1 Nm for a device having a diameter of 25,4 mm or smaller and 1,7 Nm
for a device having a diameter larger than 25,4 mm.
The minimum force to facilitate disconnection at pressures of 6 25 MPa or more, shall be 2,5 times the
force when depressurised (Types 1 and 2) or 7 bar (Type 3). Type 1 nozzles shall be tested with the vent
port plugged.
14 © ISO 2014 – All rights reserved

ISO 16380:2014(E)
10.3 Impact resistance
A nozzle shall be connected to a 4,6 m length of 9,5 mm (for size 1) and 12 mm (for size 2) internal
diameter (ID) refuelling hose, conditioned at −40 °C 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 20 MPa (M200,
N200), 25 MPa (M250, N250) and 35 MPa (M350) and subjected to 10 additional drops. Following the
above drops, 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 International Standard (see
10.5).
Key
1 suitable support
2 refuelling hose
3 concrete floor
4 nozzle
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 and at 85 °C at least 5 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 on the leak test for 1 min or have a
leak rate less than 20 cm (n)/h, when tested as specified herein.
Tests shall be conducted at 0,5 MPa, 30 MPa (M200, N200), 37,5 MPa (M250, N250) and 52,5 MPa (M350),
and then 0,5 MPa again.
Pressurized helium 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.
The leak rate shall be measured by either a vacuum test using helium gas (global accumulation method)
or an equivalent method.
ISO 16380:2014(E)
The leak rate less than 20 Ncm /h (normal referred to helium) shall be accepted.
10.5.2 Receptacle
The receptacle check valve shall be either bubble free on the leak test for 1 min or have a leak rate less
than 20 cm (n)/h when tested as specified herein. If leakages are notified they have to be quantified by
using adequate technical methods.
Tests shall be conducted at 0,5 MPa, 30 MPa (M200, N200), 35 MPa (M250, N250), 45 MPa (M350), and
then 0,5 MPa again.
The receptacle shall be connected to a pressure vessel capable of safely accommodating the specified
test pressures. The recept
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