ISO 12619-2:2014
(Main)Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 2: Performance and general test methods
Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 2: Performance and general test methods
ISO 12619-2:2014 specifies performance and general test methods for compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components, intended for use on the types of motor vehicles defined in ISO 3833. This part of ISO 12619-2:2014 is applicable to vehicles using CGH2 in accordance with ISO 14687‑1 or ISO 14687‑2 and hydrogen/natural gas blends using natural gas in accordance with ISO 15403‑1 and ISO/TR 15403‑2. It is not applicable to the following: -liquefied hydrogen (LH2) fuel system components; -fuel containers; -stationary gas engines; -container mounting hardware; -electronic fuel management; -refuelling receptacles.
Véhicules routiers — Composants des circuits d'alimentation pour hydrogène gazeux comprimé (CGH2) et mélanges de gaz naturel et hydrogène — Partie 2: Performance méthodes d'essai en général
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INTERNATIONAL ISO
STANDARD 12619-2
First edition
2014-06-15
Road vehicles — Compressed gaseous
hydrogen (CGH2) and hydrogen/
natural gas blend fuel system
components —
Part 2:
Performance and general test
methods
Véhicules routiers — Composants des circuits d’alimentation pour
hydrogène gazeux comprimé (CGH2) et mélanges de gaz naturel et
hydrogène —
Partie 2: Performance méthodes d’essai en général
Reference number
ISO 12619-2:2014(E)
©
ISO 2014
---------------------- Page: 1 ----------------------
ISO 12619-2:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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Published in Switzerland
ii © ISO 2014 – All rights reserved
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ISO 12619-2:2014(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General . 2
5 Hydrostatic strength . 2
6 Leakage. 3
6.1 General . 3
6.2 External leakage . 3
6.3 Internal leakage . 3
6.4 Test conditions . 4
7 Excess torque resistance . 4
8 Bending moment . 4
9 Continued operations . 5
9.1 General . 5
9.2 Test method . 6
10 Corrosion resistance . 6
11 Oxygen ageing . 7
12 Ozone ageing . 7
13 Electrical over voltages . 7
14 Non-metallic material immersion . 8
15 Vibration resistance . 8
16 Brass material compatibility . 9
17 Non metallic material compatibility to hydrogen . 9
18 Metallic material compatibility to hydrogen. 9
19 Pre-cooled hydrogen exposure test . 9
20 Insulation resistance . 9
21 Ultraviolet resistance of external surfaces.10
22 Automotive fluid exposure .10
22.1 Fluids .10
22.2 Pass criteria .10
Bibliography .11
© ISO 2014 – All rights reserved iii
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ISO 12619-2:2014(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 fuels.
ISO 12619 consists of the following parts, under the general title Road vehicles — Compressed gaseous
hydrogen (CGH2) and hydrogen/natural gas blends fuel system components:
— Part 1: General requirements and definitions
— Part 2: Performance and general test methods
— Part 3: Pressure regulator
iv © ISO 2014 – All rights reserved
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INTERNATIONAL STANDARD ISO 12619-2:2014(E)
Road vehicles — Compressed gaseous hydrogen
(CGH2) and hydrogen/natural gas blend fuel system
components —
Part 2:
Performance and general test methods
1 Scope
This part of ISO 12619 specifies performance and general test methods for compressed gaseous
hydrogen (CGH2) and hydrogen/natural gas blends fuel system components, intended for use on the
types of motor vehicles defined in ISO 3833.
This part of ISO 12619 is applicable to vehicles using CGH2 in accordance with ISO 14687-1 or ISO 14687-2
and hydrogen/natural gas blends using natural gas in accordance with ISO 15403-1 and ISO/TR 15403-
2. It is not applicable to the following:
— liquefied hydrogen (LH2) fuel system components;
— fuel containers;
— stationary gas engines;
— container mounting hardware;
— electronic fuel management;
— refuelling receptacles.
NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to
meet the criteria of this part of ISO 12619 and tested according to the appropriate functional tests.
NOTE 2 All references to pressure in this part of ISO 12619 are to be considered gauge pressures unless
otherwise specified.
NOTE 3 This part of ISO 12619 may not apply to fuel cell vehicles in compliance with international regulations.
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 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 11114-2, Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 2:
Non-metallic materials
© ISO 2014 – All rights reserved 1
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ISO 12619-2:2014(E)
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 12619-1:2014, Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blend
fuel system components — Part 1: General requirements and definitions
ISO 12619-3:2014, Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blend
fuel system components — Part 3: Pressure regulator
ISO 14687-1, Hydrogen fuel — Product specification — Part 1: All applications except proton exchange
membrane (PEM) fuel cell for road vehicles
ISO 14687-2, Hydrogen fuel — Product specification — Part 2: Proton exchange membrane (PEM) fuel cell
applications for road vehicles
ISO 15500-2, Road vehicles — 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
ASTM G154, Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic
Materials
ASTM D4814 −11b, Standard Specification for Automotive Spark-Ignition Engine Fuel
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12619-1 apply.
4 General
4.1 Unless otherwise stated, the tests shall be conducted at room temperature, i.e. 20 °C ± 5 °C.
4.2 Components shall comply with the tests specified in ISO 12619-3 and subsequent parts, as well as
the applicable tests specified in this part of ISO 12619. Because of the peculiarities of some components,
the list of tests given in this part of ISO 12619, (Clauses 5 to 17) is not exhaustive. Where additional tests
are required, their provisions are given in another relevant part.
4.3 Unless otherwise specified, all tests shall be conducted using dry hydrogen, helium or blends of
nitrogen with a minimum 5 % of hydrogen. The tests 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.
4.4 It is recognized that new technology may not be covered in ISO 12619-3 or subsequent parts of
ISO 12619.
4.5 Hydrogen used for testing shall comply with either ISO 14687-1 or ISO 14687-2.
5 Hydrostatic strength
A component shall not show any visible evidence of rupture when subjected to the following test
procedure.
2 © ISO 2014 – All rights reserved
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ISO 12619-2:2014(E)
Plug the outlet opening of the component and have the valve seats or internal blocks assume the open
position. Apply, with a test fluid, the hydrostatic pressure specified in the applicable part of ISO 12619
to the inlet of the component for a period of at least 3 min.
The hydrostatic pressure shall be increased at a rate of less than or equal to 1,4 MPa/sec until component
failure. The hydrostatic pressure at failure shall be recorded. The failure pressure of components which
have been subjected to previous durability and corrosion tests shall be no less than 80 % of the failure
pressure of the virgin component.
The samples used in this test shall not be used for any other testing.
6 Leakage
6.1 General
6.1.1 Prior to conditioning, purge the component or device with nitrogen and then seal it at 30 % of
working pressure using test gases as defined in 4.3. In case of components subjected to more than one
working pressure, the test may be conducted in subsequent steps.
6.1.2 Conduct all tests while the device is continuously exposed to the specified test temperatures. The
3
device passes the test if it shall have a leakage rate of less than 10 Ncm /h (normal referred to hydrogen)
of hydrogen gas using the test method specified in 6.2, 6.3 and 6.4. If test gas other than pure hydrogen is
used, the leak rate shall be converted to a 100 % hydrogen gas leak rate equivalent.
6.2 External leakage
6.2.1 Plug each device outlet with the appropriate mating connection and apply the test pressure to the
inlet.
6.2.2 Apply test gases as defined in 4.3 to the test device.
6.2.3 At all test temperatures, immerse the components in a suitable test medium for at least 2 min or
use a helium vacuum test (global accumulation method) or other equivalent method.
6.2.4 Measure the leak rate by an appropriate method. It should not be more than as specified in 6.1.2.
6.3 Internal leakage
6.3.1 The internal leakage test is applicable only to devices having a closed position. The aim of this test
is to check the pressure tightness of the closed system.
6.3.2 Connect the inlet or outlet, as applicable, of the device, with the appropriate mating connection,
while leaving the opposite connection or connections open.
6.3.3 Apply the test pressure to the inlet or outlet, as applicable, of the device using test gas.
6.3.4 At all applicable temperatures mentioned in 6.4, immerse the component in a suitable test
medium for at least 2 min or other equivalent method.
6.3.5 Measure the leak rate at any applicable test pressure mentioned in 6.4, or otherwise specified
in the other parts of the ISO 12619 series, by an appropriate method and it should not be more than as
specified in 6.1.2.
© ISO 2014 – All rights reserved 3
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ISO 12619-2:2014(E)
6.4 Test conditions
6.4.1 The device shall be pressurized at 100 % of service pressure and then conditioned until
temperature equilibrium is achieved at low temperature of −40 °C or −20 °C, as applicable, and maintained
at that temperature for at le
...
DRAFT INTERNATIONAL STANDARD ISO/DIS 12619-2
ISO/TC 22/SC 25 Secretariat: UNI
Voting begins on Voting terminates on
2012-01-06 2012-06-06
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ ORGANISATION INTERNATIONALE DE NORMALISATION
Road vehicles — Compressed Gaseous Hydrogen (CGH2) and
Hydrogen/Natural Gas blend fuel system components —
Part 2:
Performance and general test methods
Véhicules routiers — Composants des circuits d'alimentation pour hydrogène gazeux comprimé (CGH2) et
mélanges de gaz naturel et hydrogène —
Partie 2: Performance méthodes d'essai en général
ICS 43.060.40
In accordance with the provisions of Council Resolution 15/1993 this document is circulated in
the English language only.
Conformément aux dispositions de la Résolution du Conseil 15/1993, ce document est distribué
en version anglaise seulement.
To expedite distribution, this document is circulated as received 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, 2012
---------------------- Page: 1 ----------------------
ISO/DIS 12619-2
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 copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
ii © ISO 2012 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/DIS 12619-2
Contents Page
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General . 2
5 Hydrostatic strength . 2
6 Leakage . 3
6.1 General . 3
6.2 External leakage . 3
6.4 Test conditions . 4
7 Excess torque resistance . 4
8 Bending moment . 4
9 Continued operations . 5
9.1 General . 5
9.2 Test method . 6
9.2.1 Test procedure . 6
9.2.2 Room temperature cycling . 6
9.2.3 High temperature cycling . 6
9.2.4 Low temperature cycling . 6
10 Corrosion resistance . 7
11 Oxygen ageing . 7
12 Ozone ageing . 7
13 Electrical overvoltages . 7
14 Non-metallic immersion . 8
15 Vibration resistance . 8
16 Brass material compatibility . 9
17 Non-metallic material compatibility to hydrogen . 9
18 Metallic material compatibility to hydrogen . 9
19 Pre-Cooled Hydrogen Exposure Test . 9
20 Insulation resistance . 10
© ISO 2011 – All rights reserved iii
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ISO/DIS 12619-2
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 12619-2 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 25, Road
vehicles using gaseous fuels.
ISO 12619 consists of the following parts, under the general title Road vehicles — Compressed Gaseous
Hydrogen (CGH2) and Hydrogen/Natural Gas blends fuel system components:
Part 1: General requirements and definitions
Part 2: Performance and general test methods
Part 3: Pressure regulator
iv © ISO 2011 – All rights reserved
---------------------- Page: 4 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 12619-2
Road vehicles — Compressed Gaseous Hydrogen (CGH2) and
Hydrogen/Natural Gas blends fuel system components —
Part 2: Perfromance and general test methods
1 Scope
This Standard specifies performance and general test methods for Compressed Gaseous Hydrogen (CGH2)
or Hydrogen/CNG blends fuel system components, intended for use on the types of motor vehicles defined in
ISO 3833.
It is applicable to vehicles using Compressed Gaseous Hydrogen (CGH2) in accordance with ISO 14687 and
Hydrogen/Natural Gas blends. It is not applicable to the following:
a) liquefied hydrogen (LH2) fuel system components;
b) fuel containers;
c) stationary gas engines;
d) container mounting hardware;
e) electronic fuel management;
f) refuelling receptacles.
NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to meet the
criteria of this Standard and tested according to the appropriate functional tests.
NOTE 2 All references to pressure in this Standard are to be considered gauge pressures unless otherwise specified.
NOTE 3 This Standard may not apply to fuel cell vehicles in compliance with international Regulations.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute
provisions of this Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are
encouraged to investigate the possibility of applying the most recent editions of the normative documents
indicated below. For undated references, the latest edition of the normative document referred to applies.
Members of ISO and IEC maintain registers of currently valid International Standards.
ISO 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
ISO 1817, Rubber, vulcanized — Determination of the effect of liquids
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
ISO 14687, Hydrogen fuel - Product specification (all parts)
© ISO 2011 – All rights reserved 1
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ISO/DIS 12619-2
1)
ISO 12619-1 , Road vehicles - Compressed Gaseous Hydrogen (CGH2) and Hydrogen/Natural Gas blends
fuel system components - Part 1: General requirements and definitions
2)
ISO 12619-3 and subsequent parts , Road vehicles - Compressed Gaseous Hydrogen (CGH2) and
Hydrogen/Natural Gas blends fuel system components
ISO 11114-2: Transportable gas cylinders – Compatibility of cylinders and valve material with gas contents –
Part-2 – Non-metallic materials
ISO 11114-4: Transportable gas cylinders – Compatibility of cylinders and valve material with gas contents –
Part-4 – Tests methods for selecting metallic materials resistant to hydrogen embritlement
3)
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 Standard, the terms and definitions given in ISO 12619-1 apply.
4 General
4.1 Unless otherwise stated, the tests shall be conducted at room temperature: i.e. 20 °C ± 5 °C.
4.2 Components shall comply with the tests specified in ISO 12619-3 and subsequent parts, as
well as the applicable tests specified in this Standard. Because of the peculiarities of some
components, the list of tests given in this Standard (clauses 5 to 17) is not exhaustive. Where
additional tests are required, their provisions are given in another relevant part.
4.3 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.
4.4 It is recognized that new technology may not be covered in ISO 12619-3 or subsequent parts
of ISO 12619.
4.5 Hydrogen used for testing shall comply with ISO 14687:1999, Hydrogen fuel - Product
specification.
5 Hydrostatic strength
A component shall not show any visible evidence of rupture when subjected to the following test procedure.
Plug the outlet opening of the component and have the valve seats or internal blocks assume the open
1) Under development
2) Under development
3) Under development
2 © ISO 2011 – All rights reserved
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ISO/DIS 12619-2
position. Apply, with a test fluid, the hydrostatic pressure specified in the applicable part of ISO 12619 to the
inlet of the component for a period of at least 3 min.
The hydrostatic pressure shall be increased at a rate of less than or equal to 1.4 MPa/sec until component
failure. The hydrostatic pressure at failure shall be recorded. The failure pressure of components which have
been subjected to previous durability and corrosion tests shall be no less than 80 per cent of the failure
pressure of the virgin component, unless the hydrostatic pressure exceeds 1.5 times the working pressure.
The samples used in this test shall not be used for any other testing.
6 Leakage
6.1 General
6.1.1 Prior to conditioning, purge the component or device with nitrogen and then seal it at 30 % of working
pressure using test gases as defined in 4.3. In case of components subjected to more than one working
pressures, the test may be conducted in subsequent steps
6.1.2 Conduct all tests while the device is continuously exposed to the specified test temperatures. The
3
device passes the test if it shall have a leakage rate of less than 10 Ncm /h (normal referred to helium) of
hydrogen gas. If test gas other than pure hydrogen is used, the leak rate shall be converted to a 100 percent
hydrogen gas leak rate equivalent using the following test method.
6.2 External leakage
6.2.1 Plug each device outlet with the appropriate mating connection and apply the test pressure to the inlet
6.2.2 Apply test gases as defined in 4.3 to the test device.
6.2.3 At all test temperatures, immerse the components in a suitable test medium for at least 2 min or use a
helium vacuum test (global accumulation method) or other equivalent method.
6.3 Internal leakage
6.3.1 The internal leakage test is applicable only to devices having a closed
...
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