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COMPUTATION SHEET <br /> PROJECT TITLE: USA Gasoline Station No.!.65 PROJEC'2007-0065-01 <br /> DESCRIPTION: Mass Emission rates SHEE- 1 OF 4 <br /> PREP. BY:K. Nagaraju DATE: 9/5/2003 CHKD BY G. Kowtha DATE: <br /> CALCULATE <br /> Mass emission rates and destruction efficiency'of the <br /> 150 cfm SVE System <br /> BASIS <br /> Analyticaf results of soil vapor samples collected during the source test and <br /> field data sheets. <br /> ASSUMPTIONS . <br /> 1 Local atmospheric pressure is equal to standard atmospheric pressure <br /> 2 Concentration of petroleum hydrocarbons are constant during the source test day <br /> ' 3 Temperature and pressure readings remain constant during the test <br /> 4 Effluent flow rate=Total influent flow rate <br /> i ABBREVIATIONS <br /> cfm Cubic feet per minute <br /> acfm Actual cubic feet per minute(flow rate after temperature and pressure corrections) <br /> scfm Standard cubic feet per minute(flow rate measured in field using standard calibrated devices) <br /> "WC Inches of water column <br /> mg Milligram <br /> ppmv Parts per million by volume <br /> I! m3 Cubic meter <br /> Ibs pounds <br /> TPHG Total petroleum hydrocarbons as gosoline <br /> fUmin Feet per minute <br /> ft3 Cubic feet <br /> psi pounds per square inch <br /> OF Degree Fahrenheit <br /> R Rankine <br /> Conc Concentration <br /> �4 <br /> Source Test Calcs&summary - <br />