Page 474 - The Engineering Guide to LEED-New Construction Sustainable Construction for Engineers

434 App endix C

kW kilowatt
kWh kilowatthour
L liter
lb pound
lf lineal foot
m meter
Met metabolic rate
mg milligram
mils millimeters
mm millimeter
MMBtu million British thermal units
mol mole
Pa Pascal (1 Pa is approximately 0.004 in of water)
−12
pm picometer (1 × 10 m)
ppb parts per billion (molar-based for gaseous phase; may be volumetric based
for ideal gases—usually mass-based for aqueous phases, but should be
specified)
ppm parts per million (molar-based for gaseous phase; may be volumetric
based for ideal gases—usually mass-based for aqueous phases, but should
be specified)
psia pounds per square inch absolute
s second
sf square feet
sq. ft. square feet
2
square 100 ft when referring to roofing
ton ton of gross ARI rated cooling (an energy unit: 1 ton of cooling is
ac ac
12,000 Btu/h)
W watt
yd cubic yard if referring to quantities of building materials or dumpster
size
yr year
−6
μg microgram (1 × 10 g)
μm micrometer (1 × 10 m)
−6
C degrees Celsius
F degrees Fahrenheit
R degrees Rankine
$ U.S. dollar
% percent