British Standards Institution

Source:: ISO
Committee:: PVE/3/8 - (Disbanded 11.04.2025 See GSE/6)Gas containers - Hydrogen technologies
Categories:: Information management | Standardization. General rules | Engineering | Fluid systems and components | Fluid storage devices | Containers and tanks. Stationary | Energy and heat transfer engineering | Hydrogen technologies

Scope

This document specifies the requirements for the design and testing of rubber O-rings for sealing of high-pressure gaseous hydrogen, used in hydrogen fuelling stations.

This document also specifies the requirements for the design and testing of the housing and the materials of the rubber O-rings for the sealing of high-pressure gaseous hydrogen, used in hydrogen fuelling stations.

This document addresses all operating and test (temperature and pressure) conditions of rubber Orings that may be experienced under the full range of fueling protocols including high flow heavy duty applications.

Purpose

The purpose of this document is to provide a set of standard requirements for the rubber O-rings used for sealing of high-pressure gaseous hydrogen in hydrogen fuelling stations.

In the hydrogen fuelling stations, plenty of O-rings are used in the devices such as valves, filters, joints, breakaways etc., under various pressure and temperature conditions. The operating conditions of the rubber O-rings in hydrogen fueling stations may vary in several classes in temperatures between -60 oC and +180 oC, and the pressure of up to 87.5 MPa of nominal working pressure.

Currently, rubber O-rings for each device are selected in terms of the test results of the device. However, there is no clear criteria or requirements accepted worldwide in selecting O-rings suitable for the operating conditions, i.e., pressure and temperature of each device.

Provision of the set of standard requirements will contribute to maintaining and increasing safety and efficiency of operations in the hydrogen fuelling stations worldwide.

Further, this document will be useful to device manufacturers in selecting rubber O-rings appropriate for each device and will be also useful to O-ring suppliers in developing the O-rings suitable for highpressure hydrogen gas seals.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

02/03/2021

Proposal end date:

30/04/2021

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

ISO/PWI 19880-7 Gaseous hydrogen -- Fuelling stations -- Part 7: O-rings

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