Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. ASTM D6751-08 details standards and specifications for biodiesels blended with middle distillate fuels. This specification standard specifies various test methods to be used in the determination of certain properties for biodiesel blends. Some of the tests mentioned include flash point and kinematic viscosity. This is a standard set by the standards organization 'ASTM International'. ASTM International is one of the largest voluntary standards development organizations in the world.