The following symbols, acronyms, and abbreviations apply to this part:

°   degree.

ASTM   American Society for Testing and Materials.

C   Celsius.

CFR   Code of Federal Regulations.

EPA   Environmental Protection Agency.

FEL   family emission limit.

g   gram.

gal   gallon.

hr   hour.

in   inch.

kPa   kilopascal.

kW   kilowatt.

L   liter.

m   meter.

min   minute.

mm   millimeter.

psig   pounds per square inch of gauge pressure.

SAE   Society of Automotive Engineers.

SHED   Sealed Housing for Evaporative Determination.

U.S.   United States.

U.S.C.   United States Code.

W   watt.