Aktiv Normen | Herausgegeben: 26.07.2006

ISO 20998-1:2006

Measurement and characterization of particles by acoustic methods — Part 1: Concepts and procedures in ultrasonic attenuation spectroscopy
(Mesurage et caractérisation des particules par des méthodes acoustiques — Partie 1: Concepts et modes opératoires en spectroscopie d´atténuation ultrasonique)

Verfügbare Sprachen: Englisch

Verfügbare Ausführung: Elektronische PDF, Gedruckt

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Detailinformationen

Bezeichnung: ISO 20998-1:2006

Ausgabedatum: 26.07.2006

Seiten: 21

Land: Internationale technische Norm

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Annotation

Description / Abstract: ISO 20998-1:2006 describes ultrasonic methods for determining the size distributions of one or more material phases dispersed in a liquid. Colloids, dispersions, slurries and emulsions are within the scope of ISO 20998-1:2006. 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 0,1 % by volume up to 50 % or more by volume, depending on the density contrast between the continuous and the dispersed phases. These methods can be used to monitor dynamic changes in the size distribution, including agglomeration or flocculation in concentrated systems.

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