This standard specifies bench test methods for automobile and trailer air pressure control devices. This standard is applicable to various control devices in automobile and trailer air circuit systems whose output air pressure changes with changes in operating force (or air pressure). Such as air brake valve, manual brake valve, relay valve, load sensing proportional valve, trailer brake valve and other devices.
QC/T 35-1992 history
2015QC/T 35-2015 Automobile and trailer.Specifications and bench test methods of pressure control equipment
1992QC/T 35-1992 Bench test method for air pressure control devices of automobiles and trailers