SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER c: EMISSION STANDARDS AND LIMITATIONS FOR STATIONARY SOURCES
PART 212 VISIBLE AND PARTICULATE MATTER EMISSIONS
SECTION 212.111 ABBREVIATIONS AND UNITS
Section 212.111 Abbreviations and Units
a) The following abbreviations are used in this Part:
|
btu |
British thermal units (60¼°F) |
|
dscf |
dry standard cubic foot |
|
ft |
foot |
|
ft2 |
square feet |
|
fpm |
feet per minute |
|
gal |
gallon |
|
gr |
grains |
|
gr/scf |
grains per standard cubic foot |
|
gr/dscf |
grains per dry standard cubic foot |
|
hr |
hour |
|
J |
Joule |
|
kg |
kilogram |
|
kg/MW-hr |
kilograms per megawatt-hour |
|
km |
kilometer |
|
L |
liter |
|
lbs |
pounds |
|
lbs/hr |
pounds per hour |
|
lbs/mmbtu |
pounds per million btu |
|
m |
meter |
|
m2 |
square meters |
|
mph |
miles per hour |
|
mg |
milligram |
|
mg/scm |
milligrams per standard cubic meter |
|
mg/dscm |
milligrams per dry standard cubic meter |
|
mg/L |
milligrams per liter |
|
Mg |
megagram, metric ton or tonne |
|
mi |
mile |
|
mmbtu |
million British thermal units |
|
mmbtu/hr |
million British thermal units per hour |
|
MW |
megawatt; one million watts |
|
MW-hr |
megawatt-hour |
|
ng |
nanogram; one billionth of a gram |
|
ng/J |
nanograms per Joule |
|
scf |
standard cubic foot |
|
scfm |
standard cubic feet per minute |
|
scm |
standard cubic meter |
|
T |
short ton (2000 lbs) |
|
yd2 |
square yards |
b) The following conversion factors have been used in this Part:
|
English |
Metric |
|
2.205 lbs |
1 kg |
|
1 T |
0.907 Mg |
|
1 lb/T |
0.500 kg/Mg |
|
mmbtu/hr |
0.293 MW |
|
1 lb/mmbtu |
1.548 kg/MW-hr or 430 mg/J |
|
1 mi |
1.61 km |
|
1 gr |
64.81 mg |
|
1 gr/scf |
2289 mg/scm |
|
1 ft2 |
0.0929 m2 |
|
1 ft |
0.3048 m |
|
1 gal |
3.785 L |
(Source: Amended at 20 Ill. Reg. 7605, effective May 22, 1996)