标准摘要
[中文适用范围]： ISO 13318 的这一部分涵盖了通过液体中的离心沉降来确定颗粒材料的粒度分布的方法。 固体浓度通过光束的传输来确定。 产生的信号能够转换为粒度分布。 ISO 13318 本部分中描述的测定粒度分布的方法适用于可分散在液体中的粉末、以浆料形式存在的粉末以及某些乳液。 用于分析的典型粒度范围为约 0.1μm 至5微米。 该方法适用于所有颗粒具有相同密度和相似形状并且在悬浮液中不发生化学或物理变化的粉末。 通常需要颗粒的密度高于液体的密度。 [外文原描述]： 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.
英文名称Determination of particle size distribution by centrifugal liquid sedimentation methods — Part 2: Photocentrifuge method