ISO 500-1:2014给出了一般规范，包括速度、安全要求、主护罩尺寸，以及1、2、3和4型后置动力输出装置（PTO）在履带设置大于1150 mm的农业拖拉机上的间隙区（ISO 500-2中涵盖了履带设置宽度小于等于1150 mm的拖拉机）。

ISO 500-1:2014 gives general specifications, including speeds, safety requirements, the dimensions for master shield, and clearance zones for rear-mounted power take-offs (PTOs) of types 1, 2, 3, and 4 on agricultural tractors with a track setting of more than 1 150 mm (those with track setting width of 1 150 mm or less are covered in ISO 500-2).