ISO 18747-1:2018
沉降法测定颗粒密度.第1部分:等密度插值法

Determination of particle density by sedimentation methods - Part 1: Isopycnic interpolation approach

标准号

ISO 18747-1:2018

发布

2018年

发布单位

国际标准化组织

当前最新

ISO 18747-1:2018

 

 

引用标准

ISO 13317-1:2001 ISO 13318-1:2001 ISO 13318-2:2007 ISO 14887:2000 ISO 20998-1:2006 ISO 26824:2013 ISO 2811-3:2011 ISO 3105:1994 ISO/TR 13097:2013

适用范围

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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