本SAE标准的目的是定义试验条件，描述要进行的试验，指定要获得的数据，显示公式和计算，定义术语，并建立统一的报告方法，以便根据本文件进行试验的各种拖拉机品牌和型号上获得的性能数据，无论在何处进行试验，都具有可比性。很明显，由于当今的拖拉机型号多种多样，有许多特殊或可选设备，因此本文件的范围必须限于获取和报告最重要的广泛使用的性能数据。规范大纲第3节定义第4节试验条件第5节试验程序的详细说明第5节。 1拖拉机性能运行准备5.2机械功率输出性能5.2.1最大功率油耗5.2.2可变功率油耗5.2.3标准功率输出速度下的功率（仅当SAE标准功率输出速度下的发动机转速与最大功率输出速度（5.2.1）下的发动机转速不一致时，才进行此运行。）5.3牵引杆性能5.3.1最大牵引杆功率5.3.2不同的牵引杆功率燃油消耗，包括操作员站的声级5.3.3牵引杆拉力与行驶速度5.3.4外部声级第6节最终检查第7节计算和公式第8节发布结果的统一方法

The purpose of this SAE Standard is to define test conditions, give a description of the tests to be made, specify data to be obtained, show formulas and calculations, define terms, and establish a uniform method of reporting so that performance data obtained on various makes and models of tractors, tested in accordance with this document, will be comparable regardless of where the test is made. It is obvious, because of the many present day tractor models available in a number of types with numerous items of special or optional equipment, that the scope of this document must be limited to obtaining and reporting only the most significant of widely used performance data. Outline of Code Section 3 Definitions Section 4 Test Conditions Section 5 Detailed Description of Test Procedure 5.1 Preparation of Tractor for Performance Runs 5.2 Mechanical Power Outlet Performance 5.2.1 Maximum Power Fuel Consumption 5.2.2 Varying Power Fuel Consumption 5.2.3 Power at Standard Power Take-Off Speed (This run is made only when the engine speed at SAE standard power take-off speed does not correspond to the engine speed at the maximum power run (5.2.1).) 5.3 Drawbar Performance 5.3.1 Maximum Drawbar Power 5.3.2 Varying Drawbar Power Fuel Consumption, Including Sound Level at Operator Station 5.3.3 Drawbar Pull Versus Travel Speed 5.3.4 Exterior Sound Level Section 6 Final Inspection Section 7 Calculations and Formulas Section 8 Uniform Method of Publishing Results