Protective Action Criteria
 
Acronyms and Abbreviations
   
ACGIH American Conference of Governmental Industrial Hygienists
AEGL Acute Exposure Guideline Level, developed by the EPA
AIHA American Industrial Hygiene Association
atm atmosphere
BEI Biological Exposure Indices, published by ACGIH
BP boiling point
C ceiling limit; The concentration that should not be exceeded during any part of the working exposure (ACGIH).
°C Celsius
CAMEO Computer-Aided Management of Emergency Operations, maintained by NOAA
CAS Chemical Abstracts Service
CASRN Chemical Abstracts Service Registry Number
CHRIS Chemical Hazards Response Information System, maintained by the U.S. Coast Guard
conc dep concentration dependent
d day
dec decomposes
DOE U.S. Department of Energy
DOT U.S. Department of Transportation
EEGL Emergency Exposure Guidance Level
EPA U.S. Environmental Protection Agency
ERPG Emergency Response Planning Guideline, published by AIHA
FP freezing point
G gas - state at 25°C
g gram
GOEV Guide to Occupational Exposure Values, published by ACGIH
HCN Health Code Number
HC&P Handbook of Chemistry and Physics
HSDB Hazardous Substances Data Bank
HSS U.S. Department of Energy Office of Health, Safety and Security
IDLH immediately dangerous to life or health
I inhalable fraction
insol insoluble in water
IRIS Integrated Risk Information System, maintained by the EPA
kg kilogram
L liquid - state at 25°C
LANL Los Alamos National Laboratory
LC50 The concentration of a substance in air that kills 50% of the test population.
LCLo The lowest concentration of a substance in air that has been shown to cause death in a test population.
LD50 The dose of a substance administered by any route (other than inhalation) that causes death to 50% of the test population.
LDLo The lowest dose of a substance administered by any route (other than inhalation)that has been shown to cause death in a test population.
LEL lower explosive limit
LLNL Lawrence Livermore National Laboratory
LOC Level of Concern, developed by EPA
LOEL lowest-observed-effect-level
m3 cubic meter
mm Hg pressure in millimeters of mercury
MAK Maximale Arbeitsplatz-Konzentration (maximum workplace concentration) from the German Research Foundation
MF molecular formula
mg milligram
min minute
MP melting point
MSDS Material Safety Data Sheet
MW molecular weight
NFPA HHR National Fire Protection Association - health hazard rating
NIOSH National Institute for Occupational Safety and Health
NLM National Library of Medicine
NOAA National Oceanic and Atmospheric Administration
NPG NIOSH Pocket Guide to Chemical Hazards
NTP National Toxicology Program
OEL occupational exposure limit
OEV occupational exposure value
OHMTADS Oil and Hazardous Materials Technical Assistance Data System
OSHA Occupational Safety and Health Administration
PAC Protective Action Criterion, published by DOE
PEL Permissible Exposure Limit, promulgated by OSHA
PNOS particulates not otherwise specified
ppm parts per million
REL Recommended Exposure Limit
RTECS Registry of Toxic Effects Chemical Substances
S solid - state at 25°C
SAR structure activity relationship
SAX Lewis, R. J., Sr. (2005). Sax's Dangerous Properties of Industrial Materials (11th Edition). New York: John Wiley & Sons.
SAX Number Each chemical's identifying code as used in Sax's Dangerous Properties of Industrial Chemicals (SAX)
SAX HR Hazard rating used in Sax's Dangerous Properties of Industrial Chemicals (SAX)
SCAPA DOE Subcommittee on Consequence Assessment and Protective Actions
SG specific gravity
STEL short-term exposure limit
sol soluble in water
TCLo The lowest concentration of a substance in air that has been shown to produce toxic effects in a test population.
TDLo The lowest dose of a substance that has been shown to produce toxic effects in a test population.
TEEL Temporary Emergency Exposure Limit
TLV Threshold Limit Value, published by the ACGIH
TSCA Toxic Substances Control Act
TWA time-weighted average
UEL upper explosive limit
unk unknown
USCG U.S. Coast Guard
VP vapor pressure
WEEL Workplace Environmental Exposure Level, published by AIHA
 
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