本文件规定了两种测定石灰材料粒度分布的方法。 方法A（干筛法）适用于除湿的和糊状产品外的所有石灰材料。如果干燥后出现堵塞、结块、静电或结块，则方法A不适用。 方法B（湿筛法）适用于干燥后易产生堵塞、结块、静电或结块的产品。方法B可用于确定颗粒产品的主要粒度分布。方法B不适用于含有水溶性成分的生石灰和石灰材料。

This document specifies two methods for the determination of the particle size distribution of liming materials. Method A (the dry sieving method) is applicable to all liming materials except wet and paste-like products. Method A is not applicable if blinding, caking, electrostatic charges or agglomeration occur after drying. Method B (the wet sieving method) is applicable to products which are susceptible to blinding, caking, electrostatic charges or agglomeration after drying. Method B can be used to determine the primary particle size distribution of granulated products. Method B is not applicable to burnt lime and liming materials containing water-soluble constituents.