127 Determination of Particle Size Distribution in Flour by the Andreasen Pipette Method

Methods Type: Generic Methods
Key data
Number: 127
Analyte: Particle Size (Andreasen Pipette Method)
Matrix: Cereal flours
Year of Approval: 1976
Scope: Applicable to cereal flours.
Principle: The Andreasen method assumes that particles will sediment at a rate dependent on their size and further assumes the validity of Stoke´s Law in this respect.

Definition

The weight fraction, in a flour sample, of particles, which, by their sedimentation rate, correspond to equivalent spheres of chosen diameters.

 

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