1. Association of Official Analytical Chemists (AOAC), 1993. Section C: Commercial Fats and Oils, American Oil Chemists Society (AOCS) official method Cd 1–25 for Iodine Value. Assoc. Off. Anal. Chem., Washington 2000.
2. Association of Official Analytical Chemists (AOAC), 1997. Section C: Commercial Fats and Oils, American Oil Chemists Society (AOCS) official method Cd 3–25 for Saponification Value. Assoc. Off. Anal. Chem., Washington 2000.
3. Association of Official Analytical Chemists (AOAC), 1995. Section C: Commercial Fats and Oils, American Oil Chemists Society (AOCS) official method Ac-3–44 for oil content. Assoc. Off. Anal. Chem., Washington 2000.
4. ASTM, 1979. Standard Test Method for Ignition Quality of Diesel Fuels by the Cetane Method, Designation: D 613, Annual Book of ASTM Standards, vol. 05.04, ASTM, Philadelphia, PA.
5. ASTM, 1988. Standard Test Method for Gross Calorific Value of Coal and Coke by the Adiabatic Bomb Calorimeter, Designation: D2015–85, Annual Book of ASTM Standards, vol. 05.02, ASTM, Philadelphia, PA, pp. 238–243.