ISO 19880-9:2024

International
Standard
ISO 19880-9
First edition
Gaseous hydrogen — Fuelling
2024-07
stations —
Part 9:
Sampling for fuel quality analysis
Reference number
© ISO 2024
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Published in Switzerland
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Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms . 7
5 Sampling hydrogen at fuelling stations for hydrogen fuel quality analysis . 8
5.1 General .8
5.2 Sampling hydrogen at the dispenser for off-line hydrogen fuel quality .8
6 Safety for sampling hydrogen gas at the dispenser nozzle .10
6.1 General .10
6.2 Safety training .10
6.3 Operational safety during sample collection .11
6.4 Safe operation limits .11
6.5 Warning signs . .11
7 Hydrogen sampling apparatus – hardware .12
7.1 Sampling apparatus – design requirements . 12
7.1.1 General . 12
7.1.2 Maximum allowable working pressure for parts of a sampling system directly
connected to the dispenser nozzle . 13
7.1.3 Maximum allowable working pressure for parts of a sampling system
downstream of pressure regulation . 13
7.2 Gas sample containers to be used with HQSA . 13
7.3 Sampling apparatus technical documentation .14
7.4 Marking of sampling apparatus .14
8 Hydrogen sampling apparatus –operational requirements .15
8.1 General . 15
8.2 Inspection and maintenance of the sampling system . 15
8.3 Sampling equipment requiring the use of an FCEV . 15
8.4 Sampling with venting to atmosphere .16
8.5 Reporting .16
Annex A (informative) Hydrogen gas sampling — Method A . 17
Annex B (informative) Hydrogen gas sampling — Method B .23
Annex C (informative) Hydrogen gas sampling – Method C .25
Annex D (informative) Hydrogen particulate sampling – Method D .28
Annex E (informative) Hydrogen particulate sampling – Method E .31
Annex F (informative) Combining gas collection and particle collection with the same device .36
Annex G (informative) Sampling report example .37
Bibliography .38

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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
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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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
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rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
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this may not represent the latest information, which may be obtained from the patent database available at
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related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 197, Hydrogen technologies.
A list of all parts in the ISO 19880 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
International Standard ISO 19880-9:2024(en)
Gaseous hydrogen — Fuelling stations —
Part 9:
Sampling for fuel quality analysis
WARNING — The use of sampling apparatuses, such as those described in the annexes to this
document, is associated with the safety risks associated with high pressure flammable gases. This
document explains the general concepts of how gaseous and particulate samples may be taken.
Sampling should be performed only by highly trained technicians experienced with the hazards of
high-pressure hydrogen.
1 Scope
This document outlines requirements for sampling from hydrogen fuelling stations for samples taken at the
dispenser. The document defines the best practice for sampling at the nozzle of a hydrogen fuelling station
as part of the fuelling station acceptance testing, and ongoing operation.
Further, the document describes the minimum safety requirements for sampling.
This document is targeted for the sampling from the hydrogen fuelling station dispenser. Many of the generic
requirements within this document are applicable to sampling at other locations within the hydrogen
fuelling station, which can be carried out for hydrogen quality assurance, see ISO 19880-8, however, further
specific requirements that can be necessary for safe sampling are not addressed in this document.
The intention of sampling hydrogen is to enable analysis against the requirements of ISO 14687, and by
analytical methods validated by protocols described in ISO 21087.
This document supersedes, and is an extension to, the guidance published in ISO 19880-1:2020, Annex K.
NOTE Analytical methods are divided into on-line analyses and off-line analyses. On-line analysis allows for real
time analysis at hydrogen stations and is not covered in this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 14687, Hydrogen fuel quality — Product specification
ISO 21087, Gas analysis — Analytical methods for hydrogen fuel — Proton exchange membrane (PEM) fuel cell
applications for road vehicles
ISO 17268, Gaseous hydrogen land vehicle refuelling connection devices
ISO 19880-1, Gaseous hydrogen — Fuelling stations — Part 1: General requirements
ISO 19880-8, Gaseous hydrogen — Fuelling stations — Part 8: Hydrogen quality control
SAE J2600, Compressed Hydrogen Surface Vehicle Fuelling Connection Devices

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
bleed
intentional expiration of a fluid from a fluid system
3.2
building
structure, usually enclosed by walls and a roof, constructed to provide support or shelter for intended
occupancy
3.3
canopy
roof, overhead shelter, or hood which affords a degree of weather protection
3.4
compressed hydrogen storage system
CHSS
hydrogen storage on-board vehicle
3.5
component pressure rating
maximum pressure at which it is permissible to operate a component as specified by the manufacturer at a
specified temperature
Note 1 to entry: See ISO 19880-1 for further details.
3.6
connector
matching parts (such as male and female parts) that can be put together to form a "connection" which
permits the transfer of fluids, electric power, or control signals
Note 1 to entry: Fitting (3.12) are a type of connector used in piping systems.
Note 2 to entry: Examples of connectors commonly used in hydrogen systems are as follows:
a) The fuelling nozzle (3.28) “connector” mates with the receptacle (3.36) “connector” on the vehicle to form the
connection for transfer of compressed hydrogen between the dispenser (3.7) and the vehicle, as defined in
ISO 17268 for this specific application;
b) The hose assemblies have connectors on each end that allow coupling to the hoses and connection to the piping
syst
...