Free Fatty Acids (FFA):A maximum of 3% is generally considered acceptable.High FFA content indicates oil degradation and can lead to problems in biodiesel production or other uses.
Moisture and Impurities (MIU):A maximum of 0.1% is often specified.Excess moisture and impurities can affect oil quality and stability.
Saponification Value:This value (around 186 mg KOH/g) indicates the average molecular weight of the fatty acids in the oil.
Iodine Value:This value (around 120) indicates the degree of unsaturation in the fatty acids, which can affect oil properties.
Specific Gravity:A specific gravity around 0.915 is typical.
Flash Point:A minimum of 220C is generally required.
Viscosity:Kinematic viscosity at 40C is typically in the range of 4.2 mm/s.
Acid Value:This value (around 3.6 mg KOH/g) indicates the amount of free fatty acids present.
Oxidation Stability:A minimum of 5 hours at 110C is often specified