ISO 12619-3:2014/Amd 1:2016

DRAFT AMENDMENT
ISO 12619-3:2014/DAM 1
ISO/TC 22/SC 41 Secretariat: UNI
Voting begins on: Voting terminates on:
2015-09-07 2015-12-07
Road vehicles — Compressed gaseous hydrogen (CGH2)
and hydrogen/natural gas blend fuel system components —
Part 3:
Pressure regulator
AMENDMENT 1
Véhicules routiers — Composants des circuits d’alimentation pour hydrogène gazeux comprimé (CGH2) et
mélanges de gaz naturel et hydrogène —
Partie 3: Regulateur de pression
AMENDEMENT 1
ICS: 43.060.40
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
Reference number
NATIONAL REGULATIONS.
ISO 12619-3:2014/DAM 1:2015(E)
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. ISO 2015

ISO 12619-3:2014/DAM 1:2015(E)

© ISO 2015, Published in Switzerland
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ii © ISO 2015 – All rights reserved

ISO/FDIS 12619-3:2013(E)
Contents Page
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Marking and labelling . 2
5 Qualifications for construction and assembly . 3
6 Tests . 3
Bibliography . 8

ISO/FDIS 12619-3:2013(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.
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 12619-3 was prepared by Technical Committee 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 2013 – All rights reserved

FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 12619-3:2013(E)

Road vehicles — Compressed Gaseous Hydrogen (CGH2) and
Hydrogen/Natural Gas blends fuel system components —
Part 3: Pressure regulator
1 Scope
This Standard specifies tests and requirements for the pressure regulator, a Compressed Gaseous Hydrogen
(CGH2) and Hydrogen/Natural Gas blends fuel system component 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 14687-1 or
ISO/TS 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:
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 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 referenced document (including any amendments)
applies. Members of ISO and IEC maintain registers of currently valid International Standards.
 ISO 11114-2, Gas cylinders — Compatibility of cylinder and valve materials with gas contents —
Part 2: Non-metallic materials
 ISO 12619-1, Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas
blend fuel system components — Part 1: General requirements and definitions
ISO/FDIS 12619-3:2013(E)
 ISO 12619-2, Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas
blend fuel system components — Part 2: Performance and general test methods
 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 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
3 Terms and definitions
For the purposes of this Standard, the terms and definitions given in ISO 12619-1 and the following apply.
3.1
lock-up pressure
stabilized outlet pressure of the regulator at 0 (zero) flow
4 Marking and labelling
Marking of the component shall provide sufficient information to allow the following to be traced:
a) the manufacturer’s or agent’s name, trademark or symbol
b) the model designation (part number)
c) the working pressure or working pressure and temperature range
d) the maximum outlet pressure
e) the type of fuel
The following additional markings are recommended:
f) the direction of flow (when necessary for correct inst
...