Reference number
ISO 20998-3:2017
International Standard
ISO 20998-3:2017
Measurement and characterization of particles by acoustic methods — Part 3: Guidelines for non-linear theory
Edition 1
2017-04
Preview
ISO 20998-3:2017
67601
Indisponible en français
Publiée (Edition 1, 2017)
Cette publication a été révisée et confirmée pour la dernière fois en 2022. Cette édition reste donc d’actualité.

ISO 20998-3:2017

ISO 20998-3:2017
67601
Langue
Format
CHF 129
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Résumé

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.

Informations générales

  •  : Publiée
     : 2017-04
    : Norme internationale confirmée [90.93]
  •  : 1
  • ISO/TC 24/SC 4
    19.120 
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