Product:Evening Primrose Oil-refined Appearance: light yellowish Odor and Taste: with the typical taste of the oil, mild with no bitter after taste Acid Value: 2.0mgKOH/g max. Peroxide Value: 10.0meq/kg max. Refractive lndex: 1.4720-1.4830 Specific gravity: 0.915-0.935 Moisture&Volatile: 0.05%max. Iodine Value: 135-165g/100g Saponification value: 185-200 mg/g Fatty acid profile: Palmitic acid: C16:0 4.0-8.0% Stearic acid: C18:0 0.5-3.0% Oleic acid: C18:1 4.0-15.0% Linoleic acid: C18:2 66.0-82.0% Gamma Linolenic acid: C18:3ω6 7.0-13.0% Alpha Linolenic acid: C18:3ω3 0.0-3.0% Capric acid: C20:0 0.0-2.0% Others: 0.0-1.0% Microbiology: Aflatoxin: 5µg/g max. Heavy metals: Arsenic: 0.010 max. Lead: 0.050 max. The vegetable oil should be stored at a cool, dry place and protected from light. In the unopened drum,the durability of the oil is 24 months.Once open the drums have to be sealed with nitrogen,closed airtight and the oil has to be used up within 6 months.