Frequently Used Units

Code	Name	Property	Comment
A	ampère	electric current
V	volt	electric potential
J	joule	energy
Wh	watt-hour	energy
%	percent	fraction
%LEL	%LEL	fraction	percent of lower explosive limit
Hz	hertz	frequency
VA	volt-ampère	power
VAR	volt-ampère reactive	power
W	watt	power
bar	bar	pressure
barg	bar gauge	pressure	pressure above atmospheric pressure
Cel	degree Celsius	temperature
h	hour	time
min	minute	time
s	second	time
Nl	normal liter	volume	gas volume at standard conditions