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.