COMPLETE DECK--A deck that extends from side
C O F F E R DA M -- A p r o t e c t iv e s p a c e o r s h e l l
to side and stem to stern.
surrounding a gasoline storage tank and filled with
an inert gas, such as nitrogen or carbon dioxide.
CONCENTRATION--The quantity of a substance
per unit volume. Examples of concentration units
COLD WEATHER BILL--The Cold Weather Bill is
are milligrams per cubic meter (mg/m3); parts per
used to prepare the ship for cold weather operations.
million (ppm) for vapors, gases, fumes, or dusts;
C O L D WO R K -- O p e r a t i o n s t h a t i nvo l ve o n l y
fibers per cubic centimeter (fibers/cc) for vapors or
inspections, cleaning, or minor repair where no hot
gases.
work will be conducted. Examples are space
CONDUCTION--Transfer of heat through a body or
inspections, spray painting, chemical cleaning, and
from one body to another by direct physical contact.
the use of any strippers, thinners, paints, or cleaners
CONFINED SPACE--A space which has restricted
that produce vapors.
openings for entry and exit and in which hazardous
COLLECTION, HOLDING, AND TRANSFER
contaminants could be expected to be produced but
not removed by ventilation; or in which oxygen
SYSTEM (CHT)--The system for handling
could be expected to be depleted or enriched.
sewage and wastewater.
CONTACT HAZARD--A skin hazard that exists
COLLECTIVE PROTECTION SYSTEM (CPS)--
when exposure to a chemical or biological agent can
A system of air locks, high-pressure fans, and high
result from touching a contaminated surface.
efficiency filters providing pressurized, filtered air
CONTAMINANT--A material or agent that is foreign
to total protection (TP) zones and filtered air to
to a specified or desired condition or circumstance.
limited protection (LP) zones. See TOTAL
P ROT E C T I O N Z O N E a n d L I M I T E D
C O N TA M I N AT I O N C O N C E N T R AT I O N --
PROTECTION ZONE.
Amount of a chemical agent vapor or aerosol
present in a unit volume of air; usually expressed in
COMBAT SPECTACLES--Combat spectacles are
milligrams per cubic meter (mg/m3).
for use with CW protective masks. The medical
CONTAMINATION CONTROL AREA (CCA)--
department is responsible for ordering and issuing
The CCA is used to control access to the ship of all
combat spectacles.
personnel exposed to the weather during or after a
COMBUSTIBLE DUST--Particles capable of
chemical, biological, and radiological attack.
undergoing combustion or burning when subjected
CONTAMINATION CONTROL--Procedures to
to a source of ignition.
avoid, reduce, remove, or render harmless,
COMBUSTIBLE LIQUIDS--Any liquid having a
temporarily or permanently, biological, chemical,
flash point at or above 37.8C (100F) comfort of
or radiological contamination for the purpose of
maintaining or enhancing the efficient conduct of
personnel.
military operations.
COMBUSTION--A rapid chemical reaction that
CONTAMINATION DENSITY--Amount of liquid
releases energy in the form of light and noticeable
or solid agent in a unit area; usually expressed in
h e a t . M o s t c o m bu s t i o n i nvo l v e s r a p i d
milligrams or grams per square meter (mg/M2 or
OXIDATION, which is the chemical reaction by
g/M2).
which oxygen combines chemically with the
C O N TA M I NAT I O N -- T h e d e p o s i t i o n o n a n d
elements of the burning substance.
absorption of biological or chemical agents or
COMPARTMENT AIR TEST--A test of watertight
radioactive material by shipboard structures, areas,
compartments using compressed air.
personnel, or equipment; the presence of chemical
or biological agents in the air in the form of vapors
COMPARTMENT CHECK-OFF LIST--Provides
(chemical) or aerosols (chemical or biological).
an itemized listing of all classified fittings and
closures used in damage control to set the specified
CONVECTION--Transfer of heat through the motion
of circulating gases or liquids.
material condition of readiness.
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