BS ISO 12619-9:2017

This standard BS ISO 12619-9:2017 Road vehicles. Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components is classified in these ICS categories:

• 43.060.40 Fuel systems

This document specifies tests and requirements for the pressure relief valve (PRV), a compressed gaseous hydrogen (CGH₂) and hydrogen/natural gas blend fuel system component intended for use on the types of motor vehicles defined in ISO 3833 .

It is applicable to vehicles using CGH₂ in accordance with ISO 14687‑1 or ISO 14687‑2 and hydrogen/natural gas blend using natural gas in accordance with ISO 15403‑1 and ISO/TR 15403‑2 . It is not applicable to the following:

1. liquefied hydrogen (LH₂) fuel system components;

2. fuel containers;

3. stationary gas engines;

4. container mounting hardware;

5. electronic fuel management;

6. refuelling receptacles;

7. fuel cell vehicles.

NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to meet the criteria of this document and tested according to the appropriate functional tests.

NOTE 2 All references to pressure in this document are considered gauge pressures unless otherwise specified.