Table 1.

Physico-chemical parameters of crude, refined and commercial oil (n = 3)

Quality parameters	Crude oil	Refined oil (from the developed unit)	Commercial sample	BIS standard value
Specific gravity (20 °C)	0.92	0.92	0.92	0.92
Kinetic viscosity (40 °C) in cs	38.8	36.2	36.5	–
Moisture content, %	0	0	0	0.1
Phosphorous content, ppm	6.15	Trace	Trace	–
FFA content, (% Oleic acid)	1.10	0.24	0.13	0.25
Peroxide value, meq/kg oil	22.5	7.9	23.9	10
Wax content, ppm	1420	200	20	–
Colour absorbance value (in Spectrophotometer at 460 nm)	0.149	0.079	0.050	–