本标准的目的是定义试验条件，描述要进行的试验，指定要获得的日期，显示公式和计算，定义术语，并建立统一的报告方法，以便根据本标准进行试验的各种品牌和型号拖拉机上获得的性能数据，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，配备了大量的专用或可选设备，因此本标准的范围必须仅限于获取和报告最重要的广泛使用的性能数据。

The purpose of this standard is to define test conditions, give a description of the tests to be made, specify date 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 standard, 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 standard must be limited to obtaining and reporting only the most significant of widely used performance data.