14 C.F.R. § 34.2 Abbreviations.
Title 14 - Aeronautics and Space
The abbreviations used in this part have the following meanings in both upper and lower case: CO Carbon monoxide EPA United States Environmental Protection Agency FAA Federal Aviation Administration, United States Department of Transportation HC Hydrocarbon(s) HP Horsepower hr Hour(s) H20 water kg Kilogram(s) kJ Kilojoule(s) LTO Landing and takeoff min Minute(s) NOX Oxides of nitrogen Pa Pascal(s) rO Rated output rPR Rated pressure ratio sec Second(s) SP Shaft power SN Smoke number T Temperature, degrees Kelvin TIM Time in mode W Watt(s) °C Degrees Celsius % Percent Doc. No. 25613, 55 FR 32861, Aug. 10, 1990, as amended by Amdt. 34–3, 64 FR 5559, Feb. 3, 1999]
Title 14: Aeronautics and Space
PART 34—FUEL VENTING AND EXHAUST EMISSION REQUIREMENTS FOR TURBINE ENGINE POWERED AIRPLANES
Subpart A—General Provisions
§ 34.2 Abbreviations.
