GLOSSARY
Confined Space (Permit Required). Has one or more of the following characteristics:
1) Contains or has the potential to contain a hazardous atmosphere. A hazardous at- mosphere would be created by any of the following, including:
a) Vapors exceed 10% of the lower explosive limit (LEL).
b) Airborne combustible dust exceeds its LEL.
c) Atmospheric oxygen concentrations below 19.5% or above 23.5%.
d)Atmospheric concentration of any sub- stance for which a dose or PEL is pub- lished and which could result in em- ployee exposure in excess of these values.
e) Any other atmospheric condition which is immediately dangerous to life or health (IDLH).
2) Contains a material that has the potential for engulfing an entrant.
3) Has an internal configuration such that a person could be trapped or asphyxiated by inwardly converging walls or by a floor which slopes downward and tapers to a smaller cross section; or
4) Contains any other recognized serious safety or health hazard.
Confinement. Procedures taken to keep a ma- terial in a defined or localized area once re- leased.
Containment. Actions necessary to keep a ma- terial in its container (e.g., stop a release of the material or reduce the amount being released).
Contaminant.A hazardous material that phys- ically remains on or in people, animals, the en- vironment, or equipment, thereby creating a continuing risk of direct injury or a risk of ex- posure outside of the Hot Zone.
Contamination. The process of transferring a hazardous material from its source to people, animals, the environment, or equipment, which may act as a carrier.
Contingency (Emergency) Planning. A com- prehensive and coordinated response to the
hazmat problem. This planning process builds upon the hazards analysis and recognizes that no single public or private sector agency is ca- pable of managing the hazmat problem by itself.
Control. The offensive or defensive proce- dures, techniques, and methods used in the mitigation of a hazardous materials incident, including containment, extinguishment, and confinement.
Controlled Burn. Defensive or non-interven- tion tactical objective by which a fire is al- lowed to burn with no effort to extinguish the fire. In some situations, extinguishing a fire will result in large volumes of contaminated runoff or threaten the safety of emergency re- sponders. Consult with the appropriate envi- ronmental agencies when using this method.
Critique.An element of incident termination that examines the overall effectiveness of the emergency response effort and develops recommendations for improving the organi- zation's emergency response system.
Crude Oil. A mixture of oil, gas, water and other impurities, such as metallic compounds and sulfur. Its color can range from yellow to black. This mixture includes various petro- leum fractions with a wide range of boiling points. The exact composition of this pro- duced fluid varies depending upon from where in the world the crude oil was pro- duced.
D
Dam. A physical method of confinement by which barriers are constructed to prevent or re- duce the quantity of liquid flowing into the en- vironment.
Debriefing. An element of incident termina- tion which focuses on the following factors:
1) Informing responders exactly what hazmats they were (possibly) exposed to, and the signs and symptoms of exposure.
2) Identifying damaged equipment requiring replacement or repair.
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