National foreword

This British Standard is the UK implementation of ISO 19880‑2:2025.

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 committee manager.

Contractual and legal considerations

This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will be made, and no responsibility or liability is or will be accepted by BSI in relation to the adequacy, accuracy, completeness or reasonableness of this publication. All and any such responsibility and liability is expressly disclaimed to the full extent permitted by the law.

This publication is provided as is, and is to be used at the recipient’s own risk.

The recipient is advised to consider seeking professional guidance with respect to its use of this publication.

This publication is not intended to constitute 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 28 February 2025.

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.

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.

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 A has additional information about the range of options for dispenser systems.

1 Scope

This document specifies 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 designation.

This document applies to a hydrogen dispensing system, referred to as a “dispenser”; the configuration of the dispenser can range from:

a) a dispenser cabinet, located in the fuelling area, that can perform all of the functionality needed to deliver hydrogen to a vehicle, to

b) a minimum set of components mounted in or on (as applicable) a dispenser cabinet or other supporting structure as appropriate, with the remaining functionality provided elsewhere in the hydrogen fuelling station.

A dispensing system includes the user and vehicle interface and can include components starting from the hydrogen supply, such as a connection to the banking system, a cooling unit, a dispenser control system, a flow meter, a pressure sensor, a fuel temperature sensor, an ambient temperature sensor, user interface and a fuelling hose assembly. Not all dispensing system equipment has to be physically housed within the enclosure at the dispensing area, as long as the specification of component design or type and location are adequate to ensure that the overall process meets the requirements in this document.

This document specifies the requirements for hydrogen dispensers and can provide specific references to other standards for individual components included in the hydrogen dispenser, such as valves (ISO 19880‑3) and hoses (ISO 19880‑5).

This document specifies general requirements for supporting the fuelling protocol and directs the user to ISO 19880‑1 for additional requirements and the test methods required to verify proper fuelling protocol implementation.

This document does not specify the accuracy of flow meters that can be used to meter dispensed fuel.

2 Normative references

3 Terms and definitions

4 General

5 Requirements

5.1 General material requirements

5.2 Construction and assembly requirements

5.3 Dispenser hydrogen systems

5.4 Piping and fittings

5.5 Overpressure protection devices

5.6 Filters

5.7 Valves

5.8 Venting

5.9 Dispenser fuelling assembly

5.10 Breakaway devices

5.11 Instruments for gaseous hydrogen systems

5.12 Metering

5.13 Precoolers and precooler control

5.14 Electrical equipment and wiring

5.15 Emergency shutdown system (ESS)

6 Dispensing requirements

6.1 Control of dispensing

6.2 Dispensing temperature, pressure and flow rate

6.3 Pressure integrity check (leak check)

6.4 Fuelling protocol and process limits

6.5 Post dispensing

7 Dispenser fault management

8 Marking

8.1 General requirements

8.2 Dispenser name plate

8.3 Self-serve dispenser instructions

9 Qualification tests

9.1 General

9.2 Standard test conditions

9.3 Proof pressure test

9.4 Leakage test

9.5 Impact test

9.6 Dispenser shutdown test

9.7 Hose rupture

9.8 Hose breakaway test

9.9 Prevention of electrostatic discharge

9.10 Dispenser ground continuity test

9.11 Dielectric voltage-withstand test

9.12 Dispenser cabinet test

9.13 Marking material adhesion and legibility test

10 Routine tests

11 Product literature

11.1 General

11.2 Installation

11.3 Maintenance and service

11.4 Operation

Bibliography

BS ISO 19880-2:2025

Gaseous hydrogen. Fuelling stations - Dispensers and dispensing systems

Current

Published:

28 Feb 2025