Particle Size Determination of Porous Powders Using

Sedimentation analysis based upon Stokes Law provides a convenient method for determining particle size distribution (PSD). A single solid (or nonporous) sphere sett领 in a fluid has a terminal sett领 velocity which is uniquely related to its diameter. The SediGraph determines particle size distributions using the sedimentation method. By measuring the gravity-induced sett领 velocities of different size particles in a liquid with known properties, the particle sizes are determined. The rate at which nonporous particles fall through a liquid is described by Stokes Law 全自动X光沉降粒度分析仪