This standard specifies the light distribution performance, test methods and inspection rules of automobile front fog lamps. This standard is applicable to various types of front fog lamps used by M and N vehicles.
GB 4660-1994 history
2016GB 4660-2016 Photometric characteristics of power-driven vehicle front fog lamps
2007GB 4660-2007 Motor vehicle front fog lamps equipped with filament lamps
1994GB 4660-1994 Photometric characteristics of front fog lamps for motor vehicles