Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 212 - VISIBLE AND PARTICULATE MATTER EMISSIONS
Subpart A - GENERAL
Section 212.111 - Abbreviations and Units
Current through Register Vol. 48, No. 38, September 20, 2024
a) The following abbreviations are used in this Part:
|
btu |
British thermal units (601/4°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 |
