Physical Properties of PR–106 No. of observations Unit of
measurement
Mean Value Min value Max  value Standard Deviation
Length 100 mm 6.61 5.90 7.30 0.038
Width 100 mm 1.75 1.60 1.90 0.011
Thickness 100 mm 1.40 1.20 1.60 0.010
GMD* 100 mm 2.52 2.30 2.70 0.009
Surface area 100  mm2 20.10 17.30 23.50 0.015
Volume 10 cm3 0.051 0.050 0.054 0.002
Unit mass 10 gm 0.017 0.015 0.020 0.001
True density 10 g/ml 1.521 1.517 1.528 1.58
Bulk density 10 g/ml 0.805 0.795 0.897 0.35
Porosity 10 % 47.07 45.67 47.85 1.53
Sphericity 100 % 38.28 33.33 43.57 1.915
Aspect ratio 100 % 26.58 22.24 30.65 2.137
Mass of 1000 kernel 100 gm 17.40 15.30 19.70 0.002
Angle of repose 5 Degrees 34.86 32.95 35.85 0.597
Coefficient of static frictions for:
Glass 5 -- 0.249 0.236 0.258 0.009
Plywood 5 -- 0.239 0.228 0.251 0.012
Galvanized steel 5 -- 0.217 0.209 0.231 0.010
Table 1: Some Physical Properties of Rice Kernels.