ISO 12619-3:2014 specifies tests and requirements for the pressure regulator, a compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system component intended for use on the types of motor vehicles defined in ISO 3833.
ISO 12619-3:2014 is applicable to vehicles using CGH2 in accordance with ISO 14687-1 or ISO 14687-2 and hydrogen/natural gas blends using natural gas in accordance with ISO 15403-1 and ISO/TR 15403-2. It is not applicable to the following:
-liquefied hydrogen (LH2) fuel system components,
-fuel containers,
-stationary gas engines,
-container mounting hardware,
-electronic fuel management,
-refuelling receptacles.