ISO 12614-6:2014 specifies tests and requirements for the pressure regulator, a liquefied natural gas fuel system component intended for use on the types of motor vehicles defined in ISO 3833.
ISO 12614-6:2014 is applicable to vehicles using natural gas in accordance with ISO 15403 (mono-fuel, bi-fuel, or dual-fuel applications). It is not applicable to the following:
1) fuel containers;
2) stationary gas engines;
3) container mounting hardware;
4) electronic fuel management;
5) refueling receptacles.