A sample of 15 oil palm EFB was selected randomly from
the palm oil mill. The sizes of EFB were determined according
to the length of three mutually perpendicular axes. These
lengths were measured using a ruler. The weight and percentage
of stalk or spikelet of each bunch were also determined.
The sphericity and geometric mean diameter were determined
following appropriate methods as stated by Mohsenin
(1980). The sphericity was chosen as a parameter defining
the shape of EFB. Sphericity represents the shape character
of a solid material relative to that of a sphere with a diameter
equal to the longest axis. The sphericity and the geometric
mean diameter were determined by the following equations: