bhp

brake horsepower

Btu

British thermal unit

cc

cubic centimetre (millilitre)

cm

centimetre

cuft, ft3

cubic foot

d

day

dia.

diameter

fpm

feet per minute

ft

feet

g

gram (or gravity acceleration)

gal

gallon

gpm

gallon per minute

h

hour

hp

horsepower

in

inch

imp. gal.

imperial gallon

J

joule

kg

kilogram

kJ

kilojoule

km

kilometre

kN

kilonewton

kN/m2

kilonewtons per square metre

l

litre

lb

pound

m

metre (USA: meter)

m3

cubic metre

mm

millimetre

mg

milligram

mgd

million gallons per day

min

minute

ml

millilitre

MN/m2

meganewtons per square metre

Pa

pascal

psi

pounds per square inch

rpm

rev/min, revolutions per minute

s

second

sq.

square

US gal

US gallon

yd

yard

yd3

cu yd, cubic yard