该方法包括将材料通过旋转的样品分配器，收集组分，然后拒绝或重组部分组分。通过选择合适的设备，它适用于超过由颗粒大小和数量定义的最小值的任何质量。

The method consists in passaging of the material through a rotating sample divider and collecting of the fractions, followed by rejection or recombination of some of the fractions. By choosing suitable equipment it is applicable to any mass above a minimum defined by size and number of particles.