This standard specifies the basic requirements for the graphical symbols of the agricultural transport vehicle controls, indicators and signaling devices and the display colors of the signaling devices. This standard applies to agricultural transport vehicles.
GB/T 19122-2003 history
2015GB/T 19122-2015 Tri-wheel vehicles and low-speed goods vehicles.Symbols for controls,indicators and tell tales
2003GB/T 19122-2003 Agricultural vehicles--Symbols for controls,indicators and telltales