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 |