ACGIH |
American Conference of Governmental Industrial Hygienists |
AI |
Asphalt Institute |
APP |
atactic polypropylene |
ARMA |
Asphalt Roofing Manufacturers’ Association |
B[a]P |
benzo[a]pyrene |
BUR |
built-up roofing |
°C |
degrees Celsius |
cfm |
cubic feet per minute |
CFR |
Code of Federal Regulations |
cm |
centimeter(s) |
EPA |
U.S. Environmental Protection Agency |
°F |
degrees Fahrenheit |
Fed. Reg. |
Federal Register |
ft |
foot (feet) |
GM |
geometric mean |
GSD |
geometric standard deviation |
HEPA |
high-efficiency particulate air |
HHE |
Health Hazard Evaluation |
HPLC |
high performance liquid chromatography |
hr |
hour(s) |
lb |
pound(s) |
LEV |
local exhaust ventilation |
m |
meter(s) |
mg |
milligram(s) |
min |
minute(s) |
NAICS |
North American Industry Classification System |
ng |
nanogram(s) |
NIOSH |
National Institute for Occupational Safety and Health |
NRCA |
National Roofing Contractors Association |
NSPS |
new source performance standards |
OSHA |
Occupational Safety and Health Administration |
OV |
organic vapor |
PAHs |
polycyclic aromatic hydrocarbons |
PAPR |
powered, air-purifying respirator |
PBZ |
personal breathing zone |
PEL |
permissible exposure limit |
PPE |
personal protective equipment |
REL |
recommended exposure limit |
SBS |
styrene-butadiene-styrene |
SD |
standard deviation |
TLV |
threshold limit value |
TWA |
time-weighted average |
VOCs |
volatile organic compounds |
% |
percent |