本试验方法包括通过激光衍射技术测定水硬性水泥和相关化合物的粒度分布（PSD），报告为颗粒材料的体积百分比。本试验方法适用于非水分散体和气体分散体的分析。本试验方法适用于0.4至2000µm粒径范围内颗粒材料的测量。

This test method covers the determination of the particle size distribution (PSD) of hydraulic cement and related compounds by means of the laser diffraction technique, reported as volume percent of particulate materials. This test method applies to analyses with both nonaqueous and gaseous dispersions. This test method is applicable to the measurement of particulate materials in the size range of 0.4 to 2000 μm.