Active standard | Published: 22/03/2018

ISO 18747-1:2018

Determination of particle density by sedimentation methods — Part 1: Isopycnic interpolation approach
(Détermination de la densité de particules par méthodes de sédimentation — Partie 1: Approche par interpolation isopycnique)

Available languages: English

Available design: electronic design (pdf), Print design

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Detail information

Designation: ISO 18747-1:2018

Publication date: 22/03/2018

Pages: 28

Country: International technical standard

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Anotation

Description / Abstract: ISO 18747-1:2018 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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