Corrosion. The process of dissolving, especially of metals
due to exposure to electrolytes.
Petroleum in its natural state prior to refining.
Cut and Cover.
Refers to underground vertical storage tanks.
Dead-man Control. A control device, such as a switch or
valve, designed to interrupt flow if the operator leaves his
Tank vehicle used to remove fuel from aircraft.
The mass per unit volume of a substance.
Diesel fuel marine.
DIEGME. Diethylene glycol monomethyl ether.
Dike. An embankment or wall, usually of earth or concrete,
surrounding a storage tank to impound the contents in case of
Direct Fueling System. Method used to refuel aircraft.
known as hydrant system.
Dissolved Water. Water which is in solution with fuel as
opposed to free water in suspension.
Distillate. Common term for any of a number of fuels obtained
directly from distillation of crude petroleum, usually
includes kerosene, JP-5, light diesel, and light burner fuels.
Department of Transportation.
Downgrade. To use a fuel for a lesser purpose than originally
specified, often because of contamination.