该方法适用于测量角度大于20的自由流动材料，但不适用于含有大量直径超过5mm的颗粒的材料。它包括测量锥体底部的高度和直径，通过允许样品从规定的漏斗通过固定距离落在水平底板上获得。

The method is suitable for free flowing materials for measuring angles greater than 20, but not for those which contain a large proportion of particles exceeding 5 mm in diameter.It consists in measuring of the height and diameter of the base of the cone, obtained by allowing a sample to fall through a fixed distance from a defined funnel onto a horizontal baseplate.