ISO 14687

Hydrogen fuel quality — Product specification

Qualité du carburant hydrogène — Spécification de produit

General Information

• Status: Not Published
• ICS: 27.075 - Hydrogen technologies
• 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: 08-Jan-2025
• Completion Date: 08-Jan-2025

Relations

• Revises: ISO 14687:2019 - Hydrogen fuel quality — Product specification
• Effective Date: 06-Jun-2022

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 14687
ISO/TC 197
Hydrogen fuel quality — Product
Secretariat: SCC
specification
Voting begins on:
Qualité du carburant hydrogène — Spécification de produit 2024-11-12
Voting terminates on:
2025-01-07
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 14687:2024(en) © ISO 2024

FINAL DRAFT
ISO/FDIS 14687:2024(en)
International
Standard
ISO/FDIS 14687
ISO/TC 197
Hydrogen fuel quality — Product
Secretariat: SCC
specification
Voting begins on:
Qualité du carburant hydrogène — Spécification de produit
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 14687:2024(en) © ISO 2024

ii
ISO/FDIS 14687:2024(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviations . 1
3.1 Terms and definitions .1
3.2 Abbreviated terms .3
4 Classification and application. 3
4.1 Classification .3
4.2 Application .3
5 Hydrogen quality requirements for PEM fuel cell road vehicle application . 4
5.1 Fuel quality specification .4
5.2 Analytical method .5
5.3 Sampling .6
5.4 Hydrogen quality control .6
6 Hydrogen and hydrogen-based fuel, quality requirements for PEM fuel cell stationary
applications . 6
6.1 Fuel quality specification .6
6.2 Quality verification .8
6.2.1 General requirements .8
6.2.2 Analytical requirements of the qualification tests .8
6.2.3 Report results .8
6.3 Sampling .8
6.3.1 Sample size .8
6.3.2 Selection of the sampling point .8
6.3.3 Sampling procedure .8
6.3.4 Particulates in gaseous hydrogen .9
7 Hydrogen quality requirements for applications other than PEM fuel cell road vehicle
and stationary applications . 9
7.1 Fuel quality specification .9
7.2 Quality verification .11
7.2.1 General requirements .11
7.2.2 Production qualification tests .11
7.3 Sampling .11
7.3.1 Sample size .11
7.3.2 Gaseous samples .11
7.3.3 Liquid samples (vaporized) .11
Annex A (informative) Rationale for the selection of hydrogen impurities for PEM fuel cell road
vehicle application .12
Annex B (informative) Guidance on the selection of the boundary point for PEM fuel cell
stationary applications .15
Annex C (informative) Rationale for the selection of hydrogen impurities to be measured for
PEM fuel cell stationary applications .18
Annex D (informative) Pressure swing adsorption and applicability of CO as an indicator for
PEM fuel cell stationary applications .20
Annex E (informative) Grade A: Gaseous hydrogen for applications other than PEM fuel cell
road vehicle and stationary applications — rationale for parameter selection and value
specifications .21
Annex F (informative) Hydrogen quality for internal combustion engine applications .23

iii
ISO/FDIS 14687:2024(en)
Bibliography .27

iv
ISO/FDIS 14687:2024(en)
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 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)
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.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
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.
This second edition cancels and replaces the first edition (ISO 14687:2019), which has been technically
revised.
The main changes are as follows:
— a new Grade of hydrogen quality for internal combustion engine (Grade F) applications has been added
in Informative Annex F;
— rationale for each Grade D specification has been moved from ISO19880-8 to this document;
— each specification for each Grade has been modified reflecting recent research work and change in
industrial needs.
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.

v
ISO/FDIS 14687:2024(en)
Introduction
In recent years, the lan
...

ISO/DISFDIS 14687:2024(E)
ISO/TC 197
Secretariat: SCC
Date: 2024-10-29
Hydrogen fuel quality — Product specification
Qualité du carburant hydrogène — Spécification de produit
FDIS stage
ISO/DISFDIS 14687:2024(Een)
© ISO 2024
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
ii © ISO 2024 – All rights reserved
ii
ISO/DISFDIS 14687:2024(Een)
Contents
Foreword .vii
Introduction . viii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviations . 1
4 Classification and application . 3
5 Hydrogen quality requirements for PEM fuel cell road vehicle application . 4
6 Hydrogen and hydrogen-based fuel, quality requirements for PEM fuel cell stationary
applications . 6
7 Hydrogen quality requirements for applications other than PEM fuel cell road vehicle
and stationary applications . 9
Annex A (informative) Rationale for the selection of hydrogen impurities for PEM fuel cell road
vehicle application . 12
Annex B (informative) Guidance on the selection of the boundary point for PEM fuel cell
stationary applications . 16
Annex C (informative) Rationale for the selection of hydrogen impurities to be measured for
PEM fuel cell stationary applications . 20
Annex D (informative) Pressure swing adsorption and applicability of CO as an indicator for
PEM fuel cell stationary applications . 22
Annex E (informative) Grade A: Gaseous hydrogen for applications other than PEM fuel cell
road vehicle and stationary applications — rationale for parameter selection and value
specifications . 23
Annex F (informative) Hydrogen quality for internal combustion engine applications . 25
Bibliography . 29

Foreword . vi
Introduction . vii
Hydrogen fuel quality — Product specification . 1
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification and application . 3
4.1 Classification . 3
4.2 Application . 3
5 Hydrogen quality requirements for PEM fuel cell road vehicle application . 4
5.1 Fuel quality specification . 4
5.2 Analytical method . 5
5.3 Sampling . 6
5.4 Hydrogen quality control . 6
© ISO 2024 – All rights reserved
iii
ISO/DISFDIS 14687:2024(Een)
6 Hydrogen and hydrogen-based fuel, quality requirements for PEM fuel cell stationary
applications .
6.1 Fuel quality specification . 6
6.2 Quality verification . 7
6.2.1 General requirements . 7
6.2.2 Analytical requirements of the qualification tests . 7
6.2.3 Report results . 8
6.3 Sampling . 8
6.3.1 Sample size . 8
6.3.2 Selection of the sampling point . 8
6.3.3 Sampling procedure . 8
6.3.4 Particulates in gaseous hydrogen . 8
7 Hydrogen quality requirements for applications other than PEM fuel cell road vehicle and
stationary applications . 8
7.1 Fuel quality specification . 8
7.2 Quality verification . 10
7.2.1 General requirements . 10
7.2.2 Production qualification tests . 10
7.3 Sampling . 10
7.3.1 Sample size . 10
7.3.2 Gaseous samples . 10
7.3.3 Liquid samples (vaporized) . 11
Annex A (informative) Rationale for the selection of hydrogen impurities for PEM fuel cell road
vehicle application . 12
A.1 General . 12
A.2 Inert gases . 12
A.3 Oxygen . 12
A.4 Carbon dioxide . 12
A.5 Carbon monoxide . 12
A.6 Methane . 13
A.7 Water . 13
A.8 Sulfur compounds . 13
A.9 Ammonia . 13
A.10 Hydrocarbons. 13
A.11 Formaldehyde . 14
A.12 Halogenated compounds . 14
A.13 Helium . 14
A.14 Solid and liquid particulates (aerosols) . 14
Annex B (informative) Guidance on the selection of the boundary point for PEM fuel cell
stationary applications . 16
B.1 Purpose . 16
B.2 Hydrogen production guidance . 16
B.3 Identification of the party responsible for hydrogen quality at the sampling point . 16
iv © ISO 2024 – All rights reserved
iv
ISO/DISFDIS 14687:2024(Een)
B.4 Selection of the sampling point . 18
Annex C (informative) Rationale for the selection of hydrogen impurities to be measured for
PEM fuel cell stationary applications . 19
C.1 Water . 19
C.2 Hydrocarbon . 19
C.3 Oxygen . 19
C.4 Helium, nitrogen and argon . 19
C.5 Carbon dioxide . 19
C.6 Carbon monoxide . 19
C.7 Sulfur compounds . 19
C.8 Formaldehyde . 20
C.9 Ammonia . 20
C.10 Halogenated compounds .
...