National foreword

This British Standard is the UK implementation of ISO 14687:2019. It supersedes BS ISO 14687‑2:2012 and BS ISO 14687‑3:2014, which are withdrawn.

The UK participation in its preparation was entrusted to Technical Committee PVE/3/8, Gas containers - Hydrogen technologies.

A list of organizations represented on this committee can be obtained on request to its secretary.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2020.

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 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 first edition of ISO 14687 cancels and replaces ISO 14687‑1:1999, ISO 14687‑2:2012 and ISO 14687‑3:2014. It also incorporates the Technical Corrigenda ISO 14687‑1:1999/Cor 1:2001 and ISO 14687‑1:1999/Cor 2:2008.

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.

Introduction

As mentioned in the Foreword, this document is a combination of three former standards for the specifications of hydrogen fuel, ISO 14687‑1, ISO 14687‑2 and ISO 14687‑3, incorporating their revisions at the same time.

In recent years, PEM (proton exchange membrane) fuel cell technologies have shown a remarkable progress such as lowering of platinum (Pt)‑loading, thinned electrolyte membrane, operation with high current density and operation under low humidity. With this progress, it has become necessary to reconsider the tolerances of hydrogen impurities for the PEM fuel cells which were previously specified in ISO 14687‑2 and ISO 14687‑3.

Therefore, this document has been mainly revised based on the research and development of PEM fuel cells focusing on the following items^[¹^{], [}³^{] to [}¹⁵^]:

PEM fuel cell catalyst and fuel cell tolerance to hydrogen fuel impurities;
effects/mechanisms of impurities on fuel cell power systems and components;
impurity detection and measurement techniques for laboratory, production and in-field operations;
fuel cell vehicle demonstration and stationary fuel cell demonstration results.

The grade D and the grade E of this document are intended to apply to PEM fuel cells for road vehicles and stationary appliances respectively. These aim to facilitate the provision of hydrogen of reliable quality balanced with acceptable lower cost for the hydrogen fuel supply.

This document reflects the state of the art at the date of its publication, but since the quality requirements for hydrogen technology applications are developing rapidly, this document may need to be further revised in the future according to technological progress.

1 Scope

This document specifies the minimum quality characteristics of hydrogen fuel as distributed for utilization in vehicular and stationary applications.

It is applicable to hydrogen fuelling applications, which are listed in Table 1.

2 Normative references

3 Terms and definitions

4 Classification and application

4.1 Classification

4.2 Application

5 Hydrogen quality requirements for PEM fuel cell road vehicle application

5.1 Fuel quality specification

5.2 Analytical method

5.3 Sampling

5.4 Hydrogen quality control

6 Hydrogen and hydrogen-based fuels, quality requirements for PEM fuel cell stationary applications

6.1 Fuel quality specification

6.2 Quality verification

6.3 Sampling

7 Hydrogen quality requirements for applications other than PEM fuel cell road vehicle and stationary applications

7.1 Fuel quality specification

7.2 Quality verification

7.3 Sampling

Bibliography

BS ISO 14687:2019

Hydrogen fuel quality. Product specification

Published:

30 Apr 2020

Withdrawn:

18 Feb 2025