本SAE推荐实践定义了评估雪地中动态客车和轻型卡车轮胎行驶牵引力的最佳已知技术。典型驾驶员会遇到许多雪地情况，这些情况在本推荐实践中没有具体说明。本推荐实践中的动态驾驶牵引力是在温度、积雪压实和深度条件（通常称为“测试窗口”）的狭窄受控范围内进行的，以最大限度地减少测试可变性。在其他类型的冰雪条件下，轮胎排名可能会有所不同。

This SAE Recommended Practice defines the best known techniques for evaluating dynamic passenger car and light truck tire driving traction in snow. There are many snow conditions which a typical driver will encounter that are not specifically addressed in this Recommended Practice. Dynamic driving traction in this Recommended Practice is under a narrow, controlled range of conditions of temperature, snow compaction and depth (commonly called the 'Test Window') to minimize test variability. Tire rankings may differ on other types of snow and ice conditions.