Crude Corn Oil Specification FFA ( As Oleic) : 3%max Moisture / Impurities: 0.5% max Refraction Index: 1.4719-1.4740 @ 25° C Iodine Index: 120-144 Saponification Number: 187/192 Non Saponification matter: 1.0% max Soluble in petroleter: 0.1% max; Sediment: 0.3% max; Flash point: 121° C min; Peroxide: 2.0 MEQ 02/KG