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ISO 20998-3

Measurement and characterization of particles by acoustic methods - Part 3: Guidelines for non-linear theory

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Organization: ISO
Publication Date: 1 April 2017
Status: active
Page Count: 32
ICS Code (Particle size analysis. Sieving): 19.120
scope:

This document gives guidelines for ultrasonic attenuation spectroscopy methods for determining the size distributions of one or more material phases dispersed in a liquid at high concentrations, where the ultrasonic attenuation spectrum is not a linear function of the particle volume fraction. In this regime, particle-particle interactions are not negligible.

This document is applicable to colloids, dispersions, slurries, and emulsions. The typical particle size for such analysis ranges from 10 nm to 3 mm, although particles outside this range have also been successfully measured. Measurements can be made for concentrations of the dispersed phase ranging from about 5 % by volume to over 50 % by volume, depending on the density contrast between the continuous and the dispersed phases, the particle size, and the frequency range[9] [10]. These ultrasonic methods can be used to monitor dynamic changes in the size distribution, including agglomeration or flocculation.

Document History

ISO 20998-3
April 1, 2017
Measurement and characterization of particles by acoustic methods - Part 3: Guidelines for non-linear theory
This document gives guidelines for ultrasonic attenuation spectroscopy methods for determining the size distributions of one or more material phases dispersed in a liquid at high concentrations,...

References

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