ISO 19880-2

Gaseous hydrogen — Fuelling stations — Part 2: Dispensers and dispensing systems

This document describes the safety requirements and test methods for the components and systems that enable the transfer of compressed hydrogen to a hydrogen vehicle as addressed in ISO 19880-1 by a hydrogen dispenser with dispensing pressures up to the H70 pressure class.

Carburant d'hydrogène gazeux — Stations de ravitaillement — Partie 2: Dispositifs et systèmes de distribution

General Information

• Status: Not Published
• ICS: 43.060.40 - Fuel systems
• ICS: 71.100.20 - Gases for industrial application
• Technical Committee: ISO/TC 197 - Hydrogen technologies
• Drafting Committee: ISO/TC 197 - Hydrogen technologies
• Current Stage: 6000 - International Standard under publication
• Due Date: 05-Dec-2024
• Completion Date: 05-Dec-2024

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 19880-2
ISO/TC 197
Gaseous hydrogen — Fuelling
Secretariat: SCC
stations —
Voting begins on:
2024-10-09
Part 2:
Dispensers and dispensing systems
Voting terminates on:
2024-12-04
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 SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 19880-2:2024(en) © ISO 2024

FINAL DRAFT
ISO/FDIS 19880-2:2024(en)
International
Standard
ISO/FDIS 19880-2
ISO/TC 197
Gaseous hydrogen — Fuelling
Secretariat: SCC
stations —
Voting begins on:
Part 2:
Dispensers and dispensing systems
Voting terminates on:
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 SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 19880-2:2024(en) © ISO 2024

ii
ISO/FDIS 19880-2:2024(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General . 7
5 Requirements . 8
5.1 General material requirements .8
5.2 Construction and assembly requirements .9
5.2.1 General construction and assembly .9
5.2.2 Housings and cabinets . .10
5.3 Dispenser hydrogen systems .10
5.4 Piping and fittings .11
5.5 Overpressure protection devices . 12
5.6 Filters . 12
5.7 Valves . 13
5.8 Venting . 13
5.9 Dispenser fuelling assembly . 13
5.10 Breakaway devices .14
5.11 Instruments for gaseous hydrogen systems .14
5.12 Metering . 15
5.13 Precoolers and precooler control . 15
5.14 Electrical equipment and wiring . 15
5.14.1 General electrical requirements . 15
5.14.2 Bonding and grounding . 15
5.14.3 Safety instrumented systems . 15
5.14.4 Illumination .16
5.14.5 Payment terminals or fuelling authorizing systems .16
5.14.6 Electromagnetic compatibility and interference (EMC).16
5.15 Emergency shutdown system (ESS) .16
6 Dispensing requirements . 17
6.1 Control of dispensing .17
6.2 Dispensing temperature, pressure and flow rate .17
6.3 Pressure integrity check (leak check) .17
6.4 Fuelling protocol and process limits .18
6.5 Post dispensing .18
7 Dispenser fault management . .18
8 Marking . .18
8.1 General requirements .18
8.2 Dispenser name plate .19
8.3 Self-serve dispenser instructions .19
9 Qualification tests . 19
9.1 General .19
9.2 Standard test conditions . .19
9.3 Proof pressure test . 20
9.3.1 Acceptance criteria . 20
9.3.2 Test method . 20
9.4 Leakage test . 20
9.4.1 Acceptance criteria . 20
9.4.2 Test method . 20
9.5 Impact test . 20

iii
ISO/FDIS 19880-2:2024(en)
9.5.1 Acceptance criteria . 20
9.5.2 Test method .21
9.6 Dispenser shutdown test .21
9.6.1 Acceptance criteria .21
9.6.2 Test method .21
9.7 Hose rupture . 22
9.7.1 General . 22
9.7.2 Acceptance criteria . 22
9.7.3 Test method . 22
9.8 Hose breakaway test . 23
9.8.1 Acceptance criteria .
...

ISO/FDIS 19880-2
Second edition
ISO/TC 197
Secretariat: SCC/BNQ
Prepared by ISO/TC 197/WG 19
Date: June 26, 2024-09-25
Gaseous Hydrogen hydrogen — Fuelling stations —
Part 2:
Dispensers and dispensing systems

Edited Edited
DIS DIS --
MUST MUST
ISO #####-#:####(X)
FDIS stage
2 © ISO #### – All rights reserved

ISO/DISFDIS 19880-2:2024(Een)
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
E-mail: [e-mail]
Website: www.iso.org
Published in Switzerland
Edited Edited
DIS DIS --
© ISO 2024 – All rights reserved iii
iii
MUST MUST
ISO/DIS FDIS 19880-2:2024(Een)
Contents
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General . 8
5 Requirements. 1
6 Dispensing requirements . 10
7 Dispenser fault management . 12
8 Marking . 12
9 Qualification tests . 13
10 Routine tests . 22
11 Product literature . 22
Annex A (Informative) Dispenser system types. 24
Annex B (Informative) Examples of hazardous area classification . 2
Annex C (Normative) Marking class requirements . 9
Bibliography . 11

iv
iv
ISO/DISFDIS 19880-2:2024(Een)
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 documentsdocument 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).
Field Code Changed
Attention is drawnISO draws attention to the possibility that some of the elementsimplementation of this
document may beinvolve the subjectuse of (a) patent(s). ISO takes no position concerning the evidence,
validity or applicability of any claimed patent rights. in respect thereof. As of the date of publication of this
document, ISO had not received notice of (a) patent(s) which may be required to implement this document.
However, implementers are cautioned that this may not represent the latest information, which may be
obtained from the patent database available at www.iso.org/patents. 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 onof the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO’sISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see the following URL:
www.iso.org/iso/foreword.htmlwww.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.

Edited Edited
DIS DIS --
© ISO 2024 – All rights reserved iii
v
MUST MUST
ISO/DIS FDIS 19880-2:2024(Een)
Introduction
The purpose of this document is to promote the implementation of hydrogen-powered land vehicles through
the creation of performance-based safety and testing requirements for compressed hydrogen fuel dispensers.
The successful commercialization of hydrogen land vehicle technologies requires codes and standards
pertaining to fuelling stations, vehicle fuel system components and the global homologation of standards
requirements for technologies with the same end use. This will allow manufacturers to achieve economies of
scale in production through the ability to manufacture one product for global use.
This document is a part of the ISO 19880 series for hydrogen fuelling stations with its scope limited to
compressed hydrogen dispensers for land vehicles that use hydrogen as fuel. Dispensers are a major
component of hydrogen fuelling stations, without which hydrogen vehicles will not become a significant
element of mobility in the future. This document includes requirements for manufacture, commissioning and
routine maintenance of dispensers in order to ensure the safe operation of dispensing hydrogen to vehicles.
Note Annex AAnnex A has additional information about the range of options for dispenser systems.
vi
vi
ISO/DISFDIS 19880-2:2024(Een)
Table of Contents
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4. General . 8
5. Requirements. 1
5.1 General material requirements . 1
5.2 Construction and assembly requirements . 1
5.2.1 General construction and assembly . 1
5.2.2 Housings and cabinets . 2
5.3 Dispenser hydrogen systems . 3
5.4 Piping and fittings . 4
5.5 Overpressure protection devices . 4
5.6 Filters . 5
5.7 Valves . 5
5.8 Venting . 6
5.9 Dispenser fuelling assembly . 6
5.10 Breakaway devices . 7
5.11 Instruments for gaseous hydrogen systems . 7
5.12 Metering . 7
5.13 Precoolers and precooler control . 8
5.14 Electrical equipment and wiring . 8
5.14.1 General electrical requirements . 8
5.14.2 Bonding and grounding . 8
5.14.3 Safety instrumented systems . 8
5.14.4 Illumination . 9
5.14.5 Payment terminals or fuelling authorizing systems . 9
5.14.6 Electromagnetic compatibility and interference (EMC) . 9
5.15 Emergency shutdown system (ESS) . 9
6 Dispensing requirements . 10
6.1 Control of dispensing . 10
6.2  Dispensing temperature, pressure and flow rate . 10
6.3 Pressure integrity check (leak check). 10
6.4  Fuelling protocol and process limits . 11
6.5 Post dispensing . 11
7 Dispenser fault management . 11
8 Marking . 11
8.1 General requirements . 11
8.2 Dispenser name plate . 12
8.3 Self-serve dispenser instructions . 12
9 Qualification tests . 12
9.1 General . 12
9.2 Standard test conditions . 12
Edited Edited
9.3 Proof pressure test .
...