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Definition of Safety & Compliance Terms

 

Action Level

The exposure level to which corrective action must be taken

ACGIH

American Conference of Governmental Industrial Hygienists

Ambient

An encompassing atmosphere: environment

Ceiling

The concentration that should not be exceeded during any part of the working exposure. It may be assessed by sampling over a period of time that should not exceed 15 minutes.

CDC

Center for Disease Control

Diffusion

The process whereby particles of liquids, gases, or solids intermingle as the result of their spontaneous movement

Dosimeter

A device for measuring doses of radiation or hazardous vapors

Excursion

One complete movement of expansion and contraction of the lungs

JCAHO

Joint Commission on Accreditation of Healthcare Organizations

NFPA

National Fire Protection Association

NIOSH

National Institute for Occupational Safety and Health

OSHA

Occupational Safety and Health Administration

PPM

Parts Per Million

Passive

Without the intervention of mechanical devices

PEL

Permissible Exposure Limit

STEL

Short Term Exposure Limit: The concentration to which it is believed that workers can be exposed continuously for a short period of time without suffering adverse effects.

TLV

Threshold Limit Value: The point at which a physiological effect begins to be produced

TWA

Time Weighted Average: The concentration for a conventional 8-hour workday and a 40-hour workweek, to which it is believed that nearly all workers may be repeatedly exposed, day after day, without adverse effects