Test material Density Particle size distribution Amount of material     D10 D50 D90   Wheat flour 0.46g/cm3 13.3μm 66.5μm 161.3μm 240kg Alumina 1.25g/cm3 35.7μm 85.7μm 134.5μm 150kg Plastic pellets 0.58g/cm3 ~3mm Depending on concentration level

Table 2: Physical characteristics of test materials.