1. D 2270-93, Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40 and 100°C;ASTM,1993
2. D 97-96a, Standard Test Method for Pour Point of Petroleum Products;ASTM,1996
3. D 445-97, Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids;ASTM,1997
4. D 2500-99, Standard Test Method for Cloud Point of Petroleum Products;ASTM,1999
5. Chile seed;Bush;Journal of the American Oil Chemists’ Society,1936