BS ISO 18747-2:2019 - Determination of particle density by sedimentation methods. Multi-velocity approach

BS ISO 18747-2:2019

Determination of particle density by sedimentation methods. Multi-velocity approach

Status : Current   Published : July 2019



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.

Standard NumberBS ISO 18747-2:2019
TitleDetermination of particle density by sedimentation methods. Multi-velocity approach
Publication Date12 July 2019
Normative References(Required to achieve compliance to this standard)ISO 14887
Informative References(Provided for Information)ISO/TR 13097:2013, JCGM 110:2008, ASTM D3766 - 08(2013), ISO 3105:1994, ISO 13318-2:2007, ISO 2811-3:2011, ISO 13322-2:2006, ISO 13317-1:2001, ISO 13318-1:2001, ISO 20998-1:2006, ISO 26824:2013, ISO 13322-1:2014, ISO 18747-1:2018
International RelationshipsISO 18747-2:2019
Draft Superseded By18/30319093 DC
DescriptorsLiquids, Size, Particle size distribution, Sedimentation techniques, Diameter, Photoelectric devices, Particulate materials, Suspensions (chemical), Sedimentation, Dispersants, Slurries, Dispersions (chemical), Gravimetric analysis, Particle size measurement
Title in FrenchDétermination de la densité de particules par méthodes de sédimentation Approche à multi vitesses
ISBN978 0 580 89336 0
File Size2.997 MB

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