ISO 13318-2:2007涵盖了通过液体中的离心沉降测定颗粒材料粒度分布的方法。固体浓度由光束的透射决定。产生的信号可以转换为粒度分布。 ISO 13318-2:2007中描述的粒度分布测定方法适用于可分散在液体中的粉末、以浆液形式存在的粉末和一些乳液。 分析的典型粒度范围约为0.1μm至5μm。该方法适用于所有颗粒具有相同密度和可比形状且悬浮液中不发生化学或物理变化的粉末。颗粒的密度通常必须高于液体的密度。

ISO 13318-2:2007 covers methods for determining the particle size distribution of particulate materials by means of centrifugal sedimentation in a liquid. Solids concentrations are determined by the transmission of a light beam. The resulting signal enables conversion to a particle size distribution. The method of determining the particle size distribution described in ISO 13318-2:2007 is applicable to powders that can be dispersed in liquids, powders that are present in slurry form and some emulsions. Typical particle size range for analysis is from about 0,1 μm to 5 μm. The method is applicable to powders in which all particles have the same density and comparable shapes and do not undergo chemical or physical change in the suspension liquid. It is usually necessary that the particles have a density higher than that of the liquid.