21/30402422 DC

This standard 21/30402422 DC BS ISO 15500-21. Road vehicles. Compressed natural gas (CNG) fuel system components is classified in these ICS categories:

• 43.060.40 Fuel systems

This document specifies tests and requirements for discharge lines closures, a compressed natural gas (CNG) fuel system component intended for use on the types of motor vehicles defined in ISO 3833 .

This document 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:

1. liquefied natural gas (LNG) fuel system components located upstream of, and including, the vaporizer;

2. fuel containers;

3. stationary gas engines;

4. container-mounting hardware;

5. electronic fuel management;

6. refuelling receptacles.