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ISO 20998-3:2017
Measurement and characterization of particles by acoustic methods — Part 3: Guidelines for non-linear theory
Translate name
STANDARD published on 21.4.2017
The information about the standard:
Designation standards: ISO 20998-3:2017
Publication date standards: 21.4.2017
SKU: NS-681988
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 20998-3:2017 :
Description / Abstract: ISO 20998-3:2017 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. ISO 20998-3:2017 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.
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