Specifications for Refined Corn Oil Relative density 0.917-0.925 Refractive index (at 40oC) (at 25oC) 1.4650-1.4680 1.4740 1.4700 Humidity and volatile substances (Max) 0.20% at 105 0C Insoluble impurities including corn seed germ (Max) 0.50% Saponification value (mg potassium hydroxide / g oil) 187 193 Unsaponifiable matters (g / kg) max 15.0 ... https://globalbusinessltd.co.uk/product/amazon-pure-corn-oil-for-sale/