ISO 15500-2:2016

ISO 15500-2:2016 specifies performance and general test methods for compressed natural gas (CNG) fuel system components intended for use on the types of motor vehicles defined in ISO 3833.
ISO 15500-2:2016 is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using compressed natural gas in accordance with ISO 15403 (all parts). It is not applicable to the following:
a)    liquefied natural gas (LNG) fuel system components located upstream of, and including, the vaporizer;
b)    fuel containers;
c)    stationary gas engines;
d)    container-mounting hardware;
e)    electronic fuel management;
f)     refuelling receptacles.