§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.

NO_X - 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]