A

?

Alpha

H

?

Eta

N

?

Nu

T

?

Tau

B

?

Beta

?

? ?

Theta

?

?

Xi

?

?

Upsilon

?

?

Gamma

I

?

Iota

O

o

Omicron

?

?

Phi

?

?

Delta

K

?

Kappa

?

?

Pi

X

?

Chi

E

?

Epsilon

?

?

Lambda

R

?

Rho

?

?

Psi

Z

?

Zeta

M

?

Mu

?

? ?

Sigma

?

?

Omega

Absolute

abs

Decibel

dB

Alternating current

ac

Degree

deg or

Ampere

amp

Degree Centigrade

C

Ampere-hour

amp hr

Degree Fahrenheit

F

Angstrom unit

A

Degree Kelvin

K

Antilogarithm

analog

Diameter

dia

Arithmetical average

aa

Direct current

dc

Atmosphere

atm

Dozen

doz

Atomic weight

at wt

Dram

dr

Avoirdupois

avdp

Efficiency

eff

Barometer

baro

Electric

elec

Board feet (feet board measure)

fbm

Electromotive force

emf

Boiler pressure

bopress

Elevation

el

Boiling point

bp

Engine

eng

Brinell hardness number

Bhn

Engineer

engr

British thermal unit

Btu or B

Engineering

engrg

Bushel

bu

Equation

eq

Calorie

cal

External

ext

Candle

cd

Fluid

fl

Center to center

c to c

Foot

ft

Centimeter

cm

Foot-candle

fc

Centimeter-gram-second (system)

cgs

Foot-Lambert

fL or fl

Chemical

chem

Foot per minute

fpm

Chemically pure

cp

Foot per second

fps

Circular

circ

Foot-pound

ft lb

Circular mil

cmil