Abbreviation List

ACGIH American Conference of Governmental Industrial Hygienists
ADA Americans With Disabilities Act
AIHA American Industrial Hygienists Association
ALARA as low as reasonably achievable
ALD Acute Lethal Dose
ANSI American National Standards Institute
ASHRAE American Society of Heating, Refrigeration and Air Conditioning Engineers
ATSDR Agency for Toxic Substances and Disease Registry
BEI Biological Exposure Indices
BLS Bureau of Labor Statistics
BSL Biosafety Level
CDC Center for Disease Control
CHO Chemical Hygiene Officer
CHP Chemical Hygiene Plan
dB decibel (may be abbreviated dBA or dBC depending on “weighting” system)
DOT Department of Transportation
Dow Dow Environmental Science and Engineering (building)
ED50 Acute Dose to which 50% of the population responds in some way (effective dose)
EPA Environmental Protection Agency
ERPG Emergency Response Planning Guideline
FDA Food and Drug Administration
FM Factory Mutual
GHS Globally Harmonized System
GLRC Great Lakes Research Center (building)
Hz Hertz
IDLH Immediate Danger to Life or Health
IR infrared
LASER Light Amplification by Simulated Emission of Radiation
LC50 Acute Concentration (in air) that is lethal to 50% of the population
LD50 Acute Dose that is lethal to 50% of the population
LSO Laser Safety Officer
MEEM Mechanical Engineering-Engineering Mechanics (building)
MIOSHA Michigan Occupational Safety and Health Administration (state)
MSDS Material Safety Data Sheet (see SDS)
MTU Michigan Technological University (Michigan Tech is the preferred shortened name)
NEC National Electrical Code
NFPA National Fire Protection Association
NIH National Institutes of Health
NIOSH National Institute for Occupational Safety and Health
NOEL (NOAEL) No Observable Effect Level (No Observable Adverse Effect)
NORA National Occupational Research Agenda
NPL National Priorities List
NRC Nuclear Regulatory Commission
OSHA Occupational Safety and Health Administration (federal)
OSHS Occupational Safety and Health Services (university)
PELS Permissible Exposure Limits
PHS Public Health Service (Federal)
PNL Permissible Noise Limit
PPE Personal Protection Equipment
PSPS Public Safety and Police Services (University)
rad Roentgen Absorbed Dose
RCRA Resources Conservation and Recovery Act (of 1976)
REL Recommended Exposure Limit
rem Roentgen Equivalent Man
SCBA Self-contained Breathing Apparatus (SCUBA =underwater)
SDS Safety Data Sheet
SOP Standard Operating Procedures
STEL Short-term Exposure Limit
TEDE Total Effective Dose Equivalent
TLV Threshold Limit Value
TLV-C Threshold Limit Value - Ceiling
TLV-STEL Threshold Limit Value – Short Term Exposure Limit
TLV-TWA Threshold Limit Value- Time Weighted Average
TTS and PTS temporary threshold shift and permanent threshold shift
UL Underwriters Laboratory
USDA United States Department of Agriculture
WBGT Wet Bulb Globe Temperature