13318-3:2004 describes a method for determining the particle size distributions of homogeneous particulate material using centrifugal sedimentation in a liquid. Solids concentrations are determined by the attenuation of an X-ray beam. The resulting signal enables conversion to a particle size distribution. The method of determining the particle size distribution described in this standard is applicable to powders which can be dispersed in liquids or powders which are present in slurry form. The typical particle size range for analysis is from 0,1 m to 5 m. The method is applicable to powders in which all particles have the same effective density, chemical composition and comparable shapes. Materials possessing elements with an atomic number greater than about 12 can be expected to produce adequate X-ray opacity. Particles should not undergo chemical or physical change in the suspension liquid. It is necessary that the particles have a higher density than that of the liquid.
BS ISO 13318-3-2004由英国标准学会 GB-BSI 发布于 2004-08-09,并于 2004-08-09 实施。
BS ISO 13318-3-2004 在中国标准分类中归属于: G04 基础标准与通用方法,在国际标准分类中归属于: 19.120 粒度分析、筛分。
BS ISO 13318-3-2004 用离心液体沉淀法测定粒度分布.离心X射线法 由 BS 3406-6-1985 变更而来。
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