FILTER SEPARATOR A filter or combination of
filters designed to remove particulate matter and to
coalesce entrained water.
FLAMMABLE LIQUID A liquid having a flash-
point below 100°F.
FLASHPOINT The lowest temperature at which a
fuel will vaporize enough to form a combustible
FLOATING-ROOF TANK Storage tank with a roof
that floats on the liquid surface and rises and falls
with the liquid level.
FLUSHING Pumping fuel through a system to clean
the system or component.
FREE-WATER Undissolved water contaminant in
fuel. The water may be in the form of a cloud,
emulsion, entrained droplets, or in gross amounts.
FREEZE POINT The temperature at which wax
crystals form in fuels.
FUEL-QUALITY MONITOR Special type of filter
designed to stop the flow of fuel if water or sedi-
ment contamination becomes too large.
GAS-FREE Clear of any gaseous vapors.
GASOLINE A blend of light, volatile, liquid hydro-
carbons used mainly as fuel for spark-ignition, in-
ternal combustion engines.
GPM Abbreviation for gallons per minute.
GROUND To connect a conductor (usually a heavy
gage wire) between the earth and an object to allow
for the dissipation of the static charge in that object.
On shore activities this is also called BONDING
HEADER A. horizontal run of piping used to group
the components of a system.
HOT REFUELING Aircraft refueling with one or
more of the aircrafts engines operating.
HYDRANT SYSTEM Distribution and dispensing
system for aviation fuels, consisting of a series of
fixed outlets or hydrants connected by piping.
HYDROMETER An instrument used for determin-
ing the specific gravity of a liquid.
HYDROSTATIC TEST A test for leaks in a piping
system (including hoses) using liquid under pres-
sure as the test medium.
INHIBITORS Chemical compounds that reduce the
rates of chemical reactions.
INNAGE Depth of liquid in a tank, measured from
the liquids surface to the bottom of the tank.
JP FUEL Fuel used in turbine engines.
LHA Amphibious Assault Ship (general purpose).
LPD Amphibious Transport Dock.
LPH Amphibious Assault Ship.
LOX Abbreviation for liquid oxygen.
LUBE OIL Common term for lubricating oil; used to
reduce friction and cool machinery.
MAXIMUM The largest allowable quantity.
MICRON A unit of length equal to one-millionth of
MILITARY SPECIFICATIONS (MILSPECS)
Guides for determining the quality requirements for
materials and equipment used by the military serv-
MINIMUM The smallest allowable quantity.
MOGAS Common term for motor gasoline.
Nz chemical notation for nitrogen.
NAVEDTRA Naval Education and Training.
NONSPARKING TOOLS Tools made of a metal
alloy that when struck against other objects, will not
cause sparks of sufficient temperature to ignite fuel
NON-VORTEX An attempt by mechanical means to
stop the swirling motion of a liquid.
OHM Measured unit of electrical resistance equal to
that of a circuit in which a potential difference of 1
volt between two points will produce a flow current
of 1 ampere.
ORIFICE A device used for narrowing the inside
diameter of a pipe and restricting the flow for
OUTAGE See ULLAGE.
PANTOGRAPH A series of pipes, joined by flexible
joints, used to connect fueling equipment to air-
PARTICULATE MATTER refers to the solid parti-
cles of fuel contaminants, such as dirt, grit. or rust.
PICKLING Name given to the procedure of filling a
new hose with fuel and letting it stand for several
days when preparing the hose for use.