40 CFR § 72.3 - Measurements, abbreviations, and acronyms.

§ 72.3 Measurements, abbreviations, and acronyms.

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.
[58 FR 3650, Jan. 11, 1993, as amended at 64 FR 28588, May 26, 1999]

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