This chapter provides definitions of biodiesel terminology, as well as overviews of the ASTM International standards for biodiesel and the BQ-9000 Fuel Quality Program as described by the National Biodiesel Board, USA.
• What is biodiesel?—Biodiesel is a drop-in diesel alternative, made from domestic, renewable resources such as plant oils, animal fats, used cooking oil, and even new sources such as algae. Biodiesel contains no petroleum, but can be blended with petroleum diesel. Biodiesel blends can be used in compression-ignition (diesel) engines with little or no modifications. ...
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