本SAE推荐规程建立了试验程序、环境、仪器和数据分析，用于比较额定车辆总重（GVWR）小于等于4540 kg（10000 lb）的乘用车、多用途车辆和轻型卡车的内部声级。试验程序的特点是具有固定的初始条件（规定的初始车速和试验现场起点处的档位选择），以便在规定恒定速度下，在各种路面上进行道路荷载运行期间，获得车辆内部声音测量。由此得出的测量数据可用于车辆工程开发和分析。

This SAE Recommended Practice establishes the test procedure, environment, instrumentation, and data analyses for comparing interior sound level of passenger cars, multipurpose vehicles and light trucks having gross vehicle weight rating (GVWR) of 4540 kg (10,000 lb) or less.The test procedure is characterized by having fixed initial conditions (specified initial vehicle speed and gear selection at the starting point on the test site) to obtain vehicle interior sound measurement during road load operation over various road surfaces at specified constant speeds.The measurement data so derived is useful for vehicle engineering development and analysis.