40 C.F.R. § 72.3
Measurements, abbreviations, and acronyms used in this part are defined as follows:
acfh-actual cubic feet per hour.
atm-atmosphere.
bbl-barrel.
Btu-British thermal unit.
°C-degree Celsius (centigrade).
CEMS-continuous emission monitoring system.
cfm-cubic feet per minute.
cm-centimeter.
dcf-dry cubic feet.
DOE-Department of Energy.
dscf-dry cubic feet at standard conditions.
dscfh-dry cubic feet per hour at standard conditions.
EIA-Energy Information Administration.
eq-equivalent.
°F-degree Fahrenheit.
fps-feet per second.
gal-gallon.
hr-hour.
in-inch.
°K-degree Kelvin.
kacfm-thousands of cubic feet per minute at actual conditions.
kscfh-thousands of cubic feet per hour at standard conditions.
Kwh-kilowatt hour.
lb-pounds.
m-meter.
mmBtu-million Btu.
min-minute.
mol. wt.-molecular weight.
MWe-megawatt electrical.
MWge-gross megawatt electrical.
NIST-National Institute of Standards and Technology.
ppm-parts per million.
psi-pounds per square inch.
°R-degree Rankine.
RATA-relative accuracy test audit.
scf-cubic feet at standard conditions.
scfh-cubic feet per hour at standard conditions.
sec-second.
std-at standard conditions.
CO2-carbon dioxide.
NOX-nitrogen oxides.
O2-oxygen.
THC-total hydrocarbon content.
SO2-sulfur dioxide.
40 C.F.R. §72.3