Glossary A
Ash yield pertains to the percentage of material remaining after a fuel is burned; that portion of a laboratory sample remaining after heating under standard conditions to constant weight; i.e., until all the combustible matter has been burned away.
Alternative fuel vehicle (AFV) as defined by the Energy Policy Act, this refers to any dedicated non-petroleum-fuel or dual-fueled vehicle.
Aerosol refers to a container (usually a hand-held size) of coating material that is pressurized for spray (atomized) applications.