40 C.F.R. § 86.403-78

Current through September 30, 2024

Section 86.403-78 - Abbreviations

The abbreviations used in this subpart have the following meanings in both capital and lowercase:

ASTM-American Society for Testing and Materials.

C-Celsius.

cc-Cubic centimetre(s).

cfh-Cubic feet per hour.

cfm-Cubic feet per minute.

CH₄ methane.

cm-Centimetre(s).

CO-Carbon monoxide.

CO₂-Carbon dioxide.

Conc-Concentration.

cu.-Cubic.

CVS-Constant volume sampler.

EGR-Exhaust gas recirculation.

EP-End point.

EPA-Environmental Protection Agency.

F-Fahrenheit.

h-hour.

HC-Hydrocarbon(s).

Hg-Mercury.

H₂O-Water.

in.-Inch(es).

K-Kelvin.

kg-Kilogram(s).

km-Kilometre(s).

kpa-Kilopascals.

lb-Pound(s).

m-Metre(s).

mph-Miles per hour.

mm-Millimetre(s).

N₂-Nitrogen.

N₂O nitrous oxide.

NO_X-Oxides of nitrogen.

No.-Number.

O₂-Oxygen.

Pa-Pascal(s).

Pb-lead.

ppm-Parts per million by volume.

psi-Pounds per square inch.

psig-Pounds per square inch gauge.

R-Rankine.

rpm-Revolutions per minute.

wt-Weight.

°-Degree(s).

%-Percent.

40 C.F.R. §86.403-78

42 FR 1126, Jan. 5, 1977, as amended at 74 FR 56373, Oct. 30, 2009