本SAE标准等同于ISO标准362-1997，但附录A中详述的差异除外，包括ECE R51修订版1和EEC 92/97和EEC 96/20中WP 29采用的修改。本文件规定了一种工程方法，用于在充分利用可用发动机功率的情况下，测量所有类型的公路车辆（摩托车除外）在中间档加速时发出的噪声。该方法旨在满足简单性和再现性的要求实际车辆运行条件下的结果。 测量与车辆的运行条件有关，这些条件产生与城市驾驶一致的最高噪音水平，并导致可重复的噪音排放。因此，规定了在规定的发动机或车辆速度下进行全油门加速试验。该试验方法需要一个只能在大面积开放空间中获得的声学环境。此类条件通常可用于:a制造阶段的测量在官方测试站的测量必须在符合本文件要求的声学环境中进行。 应该注意的是，在理想的声学环境中很少能对随机选择的车辆进行抽查。如果必须在不符合本文件要求的声学环境中对道路进行测量，则应认识到所获得的结果可能与使用规定条件获得的结果存在明显偏差。通过该方法获得的结果可客观测量规定试验条件下发出的噪声。然而，有必要考虑这样一个事实，即对不同类别机动车辆的烦恼程度的主观评估并不仅仅与声级计的指示有关。 摩托车包含在其他SAE文件中，这些文件规定了更能代表实际使用的操作模式。

This SAE Standard is equivalent to ISO Standard 362 - 1997 except for the differences detailed inAppendix A, and includes the modifications adopted by WP 29 in ECE R51 Revision 1 and EEC 92/97 and EEC 96/20.This document specifies an engineering method for measuring the noise emitted by accelerating highway vehicles of all types (except motorcycles) in intermediate gears with full utilization of the available engine power.The method is designed to meet the requirements of simplicity and reproducibility of results under realistic vehicle operating conditions.Measurements relate to operating conditions of the vehicle which give the highest noise level consistent with urban driving and which lead to reproducible noise emissions. Therefore, an acceleration test at full throttle from a stated engine or vehicle speed is specified.The test method calls for an acoustical environment which can only be obtained in an extensive open space. Such conditions can usually be provided for:aMeasurements at the manufacturing stagebMeasurements at official testing stationsMeasurements must be carried out in an acoustical environment which fulfill the requirements stated in this document. It should be noted that spot checking of vehicles chosen at random can rarely be made in an ideal acoustical environment. If measurements have to be carried out on the road in an acoustical environment which does not fulfill the requirements stated in this document, it should be recognized that the results obtained may deviate appreciably from the results obtained using the specified conditions.The results obtained by this method give an objective measure of the noise emitted under prescribed conditions of test. However, it is necessary to consider the fact that the subjective appraisal of the annoyance of different classes of motor vehicles is not simply related to the indications of a sound level meter. The motorcycles are covered in other SAE documents that prescribe an operating mode that is more representative of actual use.