| A1 | confirmed human carcinogen (ACGIH)
|
| A2 | suspected human carcinogen (ACGIH)
|
| A3 | animal carcinogen (ACGIH)
|
| A4 | not classifiable as a human carcinogen (ACGIH)
|
| A5 | not suspected as a human carcinogen (ACGIH)
|
| ACGIH | American Conference of Governmental Industrial Hygienists
|
| AIHA | American Industrial Hygiene Association
|
| CAS | Chemical Abstract Service
|
| CF | correction factor for LC data
|
| CFR | Code of Federal Regulations
|
| EEGL | emergency exposure guidance level (NRC)
|
| ERPG | emergency response planning guideline (AIHA)
|
| IDLH | immediately dangerous to life or health concentration value
|
| i.p. | intraperitoneal
|
| i.v. | intravenous
|
| kg | kilogram
|
| LC | lethal concentration
|
| LC50 | concentration causing death in 50%
|
| LCLo | lowest concentration causing death
|
| LD | lethal dose
|
| LD50 | dosage causing death in 50%
|
| LDLo | lowest dosage causing death
|
| LEL | lower explosive limit
|
| mg/kg | milligrams per kilogram of body weight
|
| mg/m3 | milligrams per cubic meter of air
|
| mmHg | millimeters of mercury (pressure measurement)
|
| mppcf | millions of particles per cubic foot of air
|
| NIOSH | National Institute for Occupational Safety and Health
|
| NRC | National Research Council
|
| OSHA | Occupational Safety and Health Administration
|
| PEL | permissible exposure limit (OSHA)
|
| ppm | parts per million parts of air
|
| RD50 | concentration producing a 50% decrease in respiratory
rate following a 10-minute exposure
|
| REL | recommended exposure limit (NIOSH)
|
| s.c. | subcutaneous
|
| SCP | Standards Completion Program (NIOSH/OSHA)
|
| SPEGL | short-term public emergency guidance level (NRC)
|
| STEL | Short-term exposure limit
|
| TCLo | lowest concentration resulting in a toxic effect
|
| TDLo | lowest dose resulting in a toxic effect
|
| TLV | threshold limit value (ACGIH)
|
| TWA | time-weighted average
|
