ISO 18747-1:2018
Current
The latest, up-to-date edition.
Determination of particle density by sedimentation methods — Part 1: Isopycnic interpolation approach
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English
22-03-2018
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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.
| DevelopmentNote |
Supersedes ISO/DIS 18747-1. (03/2018)
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| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
International Organization for Standardization
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| Status |
Current
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| Standards | Relationship |
| BS ISO 18747-1:2018 | Identical |
| ISO 13317-1:2001 | Determination of particle size distribution by gravitational liquid sedimentation methods — Part 1: General principles and guidelines |
| ISO 13318-2:2007 | Determination of particle size distribution by centrifugal liquid sedimentation methods Part 2: Photocentrifuge method |
| ISO 13318-1:2001 | Determination of particle size distribution by centrifugal liquid sedimentation methods — Part 1: General principles and guidelines |
| ISO 2811-3:2011 | Paints and varnishes — Determination of density — Part 3: Oscillation method |
| ISO 26824:2013 | Particle characterization of particulate systems — Vocabulary |
| ISO/TR 13097:2013 | Guidelines for the characterization of dispersion stability |
| ISO 14887:2000 | Sample preparation Dispersing procedures for powders in liquids |
| ISO 20998-1:2006 | Measurement and characterization of particles by acoustic methods Part 1: Concepts and procedures in ultrasonic attenuation spectroscopy |
| ISO 3105:1994 | Glass capillary kinematic viscometers — Specifications and operating instructions |
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