This standard specifies the technical requirements for refitting in-use vehicles into gasoline/compressed natural gas dual-fuel vehicles. This standard applies to the refitting of gasoline/compressed natural gas dual-fuel vehicles whose rated working pressure of natural gas is not greater than 20MPa.
GB/T 18437.1-2001 history
2009GB/T 18437.1-2009 The technical criterion of refitting for vehicle by using gas.Part 1:Compressed natural gas automobile
2001GB/T 18437.1-2001 The technical criterion of refitting for vehicle by using gas--Compressed natural gas for vehicle(CNGV)