标准摘要
[中文适用范围]： 本文件规定了一种用于测定分散在液体连续相中的固体颗粒或液滴（本文称为“颗粒”）密度的原位方法。该方法基于斯托克斯定律，在重力或离心场中直接通过实验测定这些液体或介质中的颗粒速度。颗粒密度是根据不同液体或介质中实验测定的颗粒速度计算得出的，分别考虑它们的动态粘度和密度。该方法不需要了解颗粒尺寸分布，但假设沉降相关特性（例如体积、形状、聚集状态）不变。本文件不考虑颗粒密度的多分散性，即假设所有颗粒都具有相同的材料组成。 [外文原描述]： This document specifies an in situ method for the determination of the density of solid particles or liquid droplets (herein referred to as "particle") dispersed in liquid continuous phase. The method is based on direct experimental determination of particle velocity in these liquids or media in gravitational or centrifugal fields based on Stokes law. The particle density is calculated from experimentally determined particle velocities in different liquids or media, taking into account their dynamic viscosities and densities, respectively. The approach does not require the knowledge of particle size distribution but assumes that sedimentation relevant characteristics (e.g. volume, shape, agglomeration state) do not change. This document does not consider polydispersity with regard to particle density, i.e. all particles are assumed to be of the same material composition.
英文名称Determination of particle density by sedimentation methods — Part 2: Multi-velocity approach