Page:U.S. Government Printing Office Style Manual 2008.djvu/253

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Weight		Land area		Capacity of containers
kg	kilogram	ha	hectare	kL	kiloliter
hg	hectogram	a	acre	hL	hectoliter
dag	dekagram			daL	dekaliter
g	gram			L	liter
dg	decigram			dL	deciliter
cg	centigram			cL	centiliter
mg	milligram			mL	milliliter
μg	microgram

9.57.

A similar form of abbreviation applies to any unit of the metric system.

A	amper	V	volt	mF	millifarad
VA	voltampere	W	watt	mH	millihenry
F	farad	kc	kilocycle	μF	microfarad
H	Henry	kV	kilovolt		(one-millionth of a farad)
Hz	Hertz	kVA	kilovoltampere
J	joule	kW	kilowatt

9.58.

The following forms are used when units of English weight and measure and units of time are abbreviated, the same form of abbreviation being used for both singular and plural:

Length		Area and volume
in	inch	in²	square inch
ft	foot	in³	cubic inch
yd	yard	mi²	square mile
mi	mile (statute)	ft³	cubic foot

 

Time		Weight		Capacity
yr	year	gr	grain	gill	(not abbreviated)
mo	month	dr	dram	pt	pint
d	day	oz	ounce	qt	quart
h	hour	lb	pound	gal	gallon
min	minute	cwt	hundredweight	pk	peck
s	second	dwt	pennyweight	bu	bushel
		ton(s)	(not abbreviated)	bbl	barrel
		but t	metric ton (tonne)

9.59.

In astrophysical and similar scientific matter, magnitudes and units of time may be expressed as follows, if so written in copy.

5^h3^m9^s

4.5^h