Measurement and characterization of particles by acoustic methods - Concepts and procedures in ultrasonic attenuation spectroscopy Ingestion-build-111333 Indicators complying with this part

Indicators complying with this part of ISO 11140 are intended for use in combination with the standard test pack as described in EN 285

Annex N gives an assessment of transient values

Guidance for using precision results

visual end-point

Measurement and characterization of particles by acoustic methods - Concepts and procedures in ultrasonic attenuation spectroscopy Ingestion-build-111333 Indicators complying with this part1 Scope This part of ISO 20998 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 this part of ISO 20998. 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