Recommended Practice for Braking, Stability, and Control Performance Test Procedure for Air-Brake-Equipped Trucks and Buses
配备空气制动器的卡车和公共汽车的制动、稳定性和控制性能试验程序的推荐实施规程
This Recommended Practice provides a road test procedure for trucks and buses, to evaluate their compliance with Federal Motor Vehicle Safety Standard (FMVSS) 121; Air Brake Systems. Units of measure are English in lieu of metric to be consistent with FMVSS 121.