ISO 15500-3:2012

Road vehicles — Compressed natural gas (CNG) fuel system components — Part 3: Check valve

Scope

This part of ISO 15500 specifies tests and requirements for the check valve, a compressed natural gas (CNG)
fuel system component intended for use on the types of motor vehicles defined in ISO 3833.
This part of ISO 15500 is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using 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.