Our Used Cooking Vegetable oil for Biodiesel Specifications is as detailed below ... - Free fatty acids: 3.75 % - M.I.U ( Moisture and Impurities): 0.02 % - Saponification value: 186 - Iodine value: 120 - Titre C (melting point): 13.75" C - Specific Gravity @ 25'C : 0.915 - Density (kg/m3) - 900 (min); 920