A

ACFM

Actual cubic feet per minute

atm

Atmosphere

B

BHP

Brake horsepower

Btu

British thermal unit

C

°C

Degree Celsius

cal

Calorie

cm

Centimeter

cp

Centipoise

D

DNm³

Dry standard cubic meter

E

F

°F

Degree Fahrenheit

fpm

Feet per minute

ft

Foot

ft W.C.

Feet of water column

G

gal

Gallon

gm

Gram

gpm

Gallons per minute

gr

Grains

H

hp

Horsepower

I

in.

Inch

in. Hg

Inches of mercury

in. W.C.

Inches of water column

J

K

°K

Kelvin

kcal

Kilocalorie

kg

Kilogram

kPa

Kilopascal

L

L

Liter

lb

Pound

lb_f

Pounds force

lb_m

Pounds mass

M

m

Meter

mi

Mile

min

Minute

mm

Millimeter

mm Hg

Millimeter of mercury

M

Molarity

mPa

Millipascal

µg

Microgram

µm

Micrometer

N

Nm³/min

Standard cubic meters per minute

nm

Nanometer

N

Normality

O

P

Pa

Pascal

p

Poise

ppm

Part per million

ppm(v/v)

(Also ppmv) Part per million calculated as a ratio of the volume of the pollutant divided by the total volume of the sample

ppmvd

Part per million (dry basis)

ppm(w/w)

Part per million calculated as a ratio of the weight of the pollutant divided by the total weight of the sample

psi

Pounds per square inch

psia

Pounds per square inch (absolute)

psig

Pounds per square inch (gauge)

Q

R

°R

Degree Rankine

rpm

Revolutions per minute

S

SCFM

Standard cubic feet per minute

sec

Second

T

U

V

W

X

Y

Z