Is there an objective biodiesel fuel formulation standard?
The biodiesel industry has been active in setting standards for biodiesel since 1994, when the first biodiesel task force was formed within the American Society for Testing and Materials (ASTM). ASTM approved a provisional standard for biodiesel (ASTM PS 121) in July of 1999. The final specification, D-6751, was issued in December 2001. Since then, numerous upgrades to ASTM 6751 have been made. Copies of specifications are available from ASTM at http://www.astm.org.
