This standard specifies the test methods for passenger car passenger door pneumatic door pumps. This standard is applicable to linear reciprocating pneumatic door pumps for passenger door opening and closing mechanisms of various passenger cars and trolleybuses.
GB/T 12433-1990 history
1990GB/T 12433-1990 Testing method for passenger door cylinder for buses
GB/T 12433-1990 Testing method for passenger door cylinder for buses was changed to QC/T 678-2001 Passenger door door pump.