National foreword

This British Standard is the UK implementation of ISO 19880‑3:2018.

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 June 2018.

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 on 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 the following URL: www.iso.org/iso/foreword.html.

This document was prepared by ISO/TC 197, Hydrogen technologies.

A list of all parts in the ISO 19880 series can be found on the ISO website.

Introduction

Over the course of several years, international efforts have been initiated for the development of regulations, codes and standards that are required for the introduction of hydrogen energy systems. Hydrogen has unique properties and therefore presents unique safety concerns.

One of the many hydrogen energy applications is the automobile sector for which commercialization begun recently. For the success of this application, however, hydrogen infrastructure for fuelling vehicles is as essential as the hydrogen vehicles themselves. Thus, the development of safety standards for fuelling stations and components is of paramount importance.

This document provides safety performance requirements and test methods for valves to be used in gaseous hydrogen environment. Valves are critical to the safety of hydrogen fuelling stations, because they control the flow of gaseous hydrogen, shut it down in an emergency and, at the same time, may become a potential source of hydrogen release or leakage.

This document will facilitate the development of hydrogen infrastructure that is needed to pave a way for the widespread deployment of hydrogen-fuelled vehicles. Benefits to be gained by the implementation of this document include: the establishment of a certain level of safety performance for valves, a safety-critical component; the streamlining of the design and construction processes for fuelling stations by providing standardized components; and the promotion of public acceptance of hydrogen stations through the transparency of the international standardization processes.

This document is based on the Canadian Standards Association references CSA HGV3.1‑2013, ANSI/CSA HGV 4.4‑2013, ANSI/CSA HGV 4.6‑2013 and ANSI/CSA HGV 4.7‑2013.

This document is not intended to exclude any specific technologies that meet the performance requirements herein.

This document is to be applied in conjunction with other International Standards relevant to hydrogen fuelling stations and components.

1 Scope

This document provides the requirements and test methods for the safety performance of high pressure gas valves that are used in gaseous hydrogen stations of up to the H70 designation.

This document covers the following gas valves:

check valve;
excess flow valve;
flow control valve;
hose breakaway device;
manual valve;
pressure safety valve;
shut-off valve.

2 Normative references

3 Terms and definitions

4 General requirements

4.1 General

4.2 Intended use

4.3 Material requirements

4.4 Product quality

5 General test methods

5.1 General

5.2 Test conditions

5.3 Hydrogen gas pressure cycle test

5.4 Leakage

5.5 Worst case fault pressure cycle test

5.6 Proof pressure test

5.7 Hydrostatic strength test

5.8 Excess torque resistance test

5.9 Bending moment test

5.10 Non-metallic materials test

5.11 Cold gas in warm valve test

6 Check valves

6.1 Applicability

6.2 Hydrogen gas pressure cycle test

6.3 External leakage test

6.4 Internal leakage test

6.5 Worst case fault pressure cycle test

6.6 Proof pressure test

6.7 Hydrostatic strength test

6.8 Excess torque resistance test

6.9 Bending moment test

6.10 Non-metallic material test

7 Excess flow valves

7.1 General

7.2 Tests

8 Flow control valves

8.1 General

8.2 Tests

9 Hose breakaway devices

9.1 Specific design requirements

9.2 Tests

10 Manual valves

10.1 Construction and assembly

10.2 Tests

11 Pressure safety valves (PSV)

11.1 Applicability

11.2 Hydrogen gas pressure cycle test

11.3 PSV leakage tests

11.4 Worst case fault pressure test

11.5 Proof pressure test

11.6 Hydrostatic strength test

11.7 Excess torque resistance test

11.8 Bending moment test

11.9 Non-metallic material test

11.10 Operation test

12 Shut-off valves

12.1 Classification

12.2 Construction and assembly

12.3 Tests

13 Marking

13.1 Marking information

13.2 Marking method

14 Component literature

Bibliography

BS ISO 19880-3:2018

Gaseous hydrogen. Fuelling stations - Valves

Current, Under Review

Published:

30 Jun 2018