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MASS CALCULATION, <br /> VOLUME OF EXTRACTED HYDROCARBONS (Gasoline) <br />' Art& Artists <br /> 204 E Lodi Avenue, Lodi, California <br />' The hydrocarbon mass removed during the operating period can be calculated using the following <br /> equation M= C•Q•t <br />' where M = cumulative mass recovered (kg) <br /> C = vapor concentration (kg/m3) <br /> Q = extraction flow rate (m3/hr) <br /> t= operational period <br /> 20 December 1996 to 26 February 1997 <br />' using C =475 µg11 = 0 000475 kg/m3 <br /> Q = 70 cfm = 118 9 m3/hr <br /> t= 14375hr <br />' 0 000475 • 118 9 • 1437 5 = 81 2 kg of gasoline <br />'. 81 2 kg ► 2 2046 lbs/kg = 179 0 lbs of gasoline <br />' to convert lbs of gasoline to gallons of gasoline, use 0 16 gal/lbs <br /> 179 0 gal • 0 16 gal/lbs = 28 6 gallons of gasoline <br /> 1 <br /> 1 � <br />