指定道路车辆加油泵喷嘴的尺寸及其加注率。适用于道路车辆无铅汽油喷嘴。该图显示了一个带有弹簧的喷嘴，用于在油箱加注口中安全挂钩。尺寸也适用于带有凸轮或凹陷的喷嘴喷嘴，以确保安全挂钩。

Specifies the dimensions of nozzle spouts on pumps for refuelling road vehicles, and their filling rates. Applies to nozzle spouts for unleaded gasoline for road vehicles. The figure shows a nozzle spout with a spring for safe hooking in the tank filler opening. The dimensions apply also to nozzle spouts with cams or depressions for safe hooking.