材料 - 干和湿筛分尺寸分布的测定

[中文适用范围]： 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）适用于除湿和糊状产品之外的所有石灰材料。 如果干燥后出现堵塞、结块、静电荷或结块，则方法 A 不适用。 B法（湿筛法）适用于干燥后易结块、结块、静电或结块的产品。 方法B可用于测定颗粒产品的初级粒度分布。 方法 B 不适用于含有水溶性成分的生石灰和石灰材料。 [外文原描述]： 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.