BS ISO 18747-1:2018

Determination of particle density by sedimentation methods - Isopycnic interpolation approach


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标准号
BS ISO 18747-1:2018
发布
2018年
发布单位
英国标准学会
当前最新
BS ISO 18747-1:2018
 
 
适用范围
1   Scope This document specifies a method for the determination of the density of solid particles or liquid droplets (below referred to generically as “particles”) dispersed in a liquid. The method is based on the fact that a particle wholly immersed in fluid experiences buoyancy equal to the weight of the fluid displaced by this particle (Archimedean principle), and if its mass force matches the buoyant force, it stops gravitational or centrifugal settling/creaming and the particle remains suspended. This implies that the density of the particle equals the density of the liquid. In this document, particle density determination is conducted by analysing the direction of the migration movement of particles dispersed in liquids with densities that are lower and higher than particle density. All particles are of the same material composition.

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