1051.805 What symbols, acronyms, and abbreviations does this part use§ 1051.805 What symbols, acronyms, and abbreviations does this part use?
The following symbols, acronyms, and abbreviations apply to this part:° - degrees. ASTM - American Society for Testing and Materials. ATV - all-terrain vehicle. cc - cubic centimeters. CFR - Code of Federal Regulations. CH4 methane. cm - centimeter. C - Celsius. CO - carbon monoxide. CO2 - carbon dioxide. EPA - Environmental Protection Agency. F - Fahrenheit. g - grams. g/gal/day - grams per gallon per test day. g/m 2/day - grams per meter-square per test day. HC - hydrocarbon. Hg - mercury. hr - hours. km - kilometer. kW - kilowatt. LPG - liquefied petroleum gas. m - meters. mm - millimeters. mW - milliwatts. N2O nitrous oxide. NARA - National Archives and Records Administration. NMHC - nonmethane hydrocarbons. NOX - oxides of nitrogen (NO and NOX). psig - pounds per square inches of gauge pressure. rpm - revolutions per minute. SAE - Society of Automotive Engineers. SI - spark-ignition. THC - total hydrocarbon. THCE - total hydrocarbon equivalent. U.S.C. - United States Code. [67 FR 68347, Nov. 8, 2002, as amended at 70 FR 40510, July 13, 2005; 74 FR 56511, Oct. 30, 2009]