Page:U.S. Government Printing Office Style Manual 2008.djvu/265

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Abbreviations and Letter Symbols
249

in—inch
in²—square inch
in³—cubic inch
in/h—inch per hour
inH₂O—conventional inch of water
inHg—conventional inch of mercury
in-lb—inch-pound
in/s—inch per second
J—joule
J/K—joule per kelvin
K—kayser
K—kelvin (use without degree symbol)
k—kilo (prefix, 1,000)
k—thousand (7k=7,000)
kc—kilocycle; see also kHz (kilohertz), kilocycles per second
kcal—kilocalory
keV—kiloelectronvolt
kG—kilogauss
kg—kilogram
kgf—kilogram-force
kHz—kilohertz (kilocycles per second)
kL—kiloliter
klbf—kilopound-force
km—kilometer
km²—square kilometer
km³—cubic kilometer
km/h—kilometer per hour
kn—knot (speed)
kfl—kilohm
kt—kiloton; carat
kV—kilovolt
kVA—kilovoltampere
kvar—kilovar
kW—kilowatt
kWh—kilowatthour
L—lambert
L—liter
lb—pound
lb ap—apothecary pound
lb—avdp, avoirdupois pound
lbf—pound-force
lbf/ft—pound-force foot
lbf/ft²—pound-force per square foot
lbf/ft³—pound-force per cubic foot
lbf/in²—pound-force per square inch (see psi)
lb/ft—pound per foot
lb/ft²—pound per square foot
lb/ft³—pound per cubic foot
let—long calcined ton
ldt—long dry ton
LF—low frequency
lin ft—linear foot
l/m—lines per minute
lm—lumen
lm/ft²—lumen per square foot
lm/m²—lumen per square meter
lms—lumen second
lm/W—lumen per watt
l/s—lines per second
L/s—liter per second
lx—lux
M—mega (prefix, 1 million)
M—million (3M=3 million)
m—meter
m—milli (prefix, one-thousandth)
Ml—monetary aggregate
m²—square meter
m³—cubic meter
μ—micro (prefix, one-millionth)
μm—micrometer
mA—milliampere
μA—microampere
MB—megabyte
mbar—millibar
μbar—microbar
Mc—megacycle; see also MHz (megahertz), megacycles per second
mc—millicycle; see also mHz (millihertz), millicycles per second
mD—millidarcy
meq—milliquivalent
MeV—megaelectronvolts
mF—millifarad
μF—microfarad