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LANDFILL GAS MONITORING <br /> GEM 2000 CALIBRATION AND PERTINENT DATA <br /> Date: Site Name: { <br /> Technician: n <br /> WEATHER OBSERVATIONS <br /> Wind Speed: MPH Wind Direction: Barometric Pressure . 5'Ng <br /> Air Temperature: OF General Weather Conditions: <br /> CALIBRATION INFORMATION <br /> Pre-monitoring Calibration Precision Check <br /> Procedure: Calibrate the instrument. Make a total of three measurements by alternating zero air and the <br /> calibration gas. Record the readings and calculate the average algebraic difference between the <br /> instrument reading and the calibration gas as a percentage. The calibration precision must be less than <br /> or equal to 2%of the calibration gas value. <br /> Instrument Serial No. <br /> Calibration Gas: %CH4 ,( %CO2 Ja02 <br /> T'sme <br /> CH4 CO2 02 <br /> Post-monitoring Calibration Check co <br /> Time CH4 <br /> NOTES: <br /> Calibration Form GEM <br /> 10/30/06 7:36 AM <br />