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Va <br /> B. Analysis - continued <br /> Typical Operating Conditions <br /> Carrier Gas: Nitrogen or Helium at 30 mL/min. <br /> Injector Temperature: 250°C <br /> Detector Temperature: 3000C <br /> Column Temperature: 400 hold for three minutes, 10°CJmin <br /> ramp rate to 300°C or until at least 9:5G of all <br /> components are eluted. <br /> 2. Chromatographic operations for detection of Lvical <br /> petroleum fuel hydrocarbons with BTR distinction. <br /> BMW <br /> Detector: Photo Ionization in series with Flame <br /> Ionization. <br /> Column: Carbopack B/3 percent SP-1500 <br /> Typical Operation Conditions: <br /> Carrier Gus: Nitrogen or. Helium at 10 mL/min. <br /> Injector Temperature: 200°C <br /> ' y Detector Temperature: 250°C <br /> ,:. Co umn Temperature: 1000C x six min. to 225°C at <br /> 10 C/min. hold 25 min. 'or until at least 95% of all <br /> components are eluted. <br /> C. Quantification <br /> Quantify Total Petroleum Fuel Hydrocarbons by <br /> integrating all major peaks within the time period in <br /> F ; ` which at least 95% of the recoverat le hydrocarbons are <br /> �, .. eluted. Calibration shall be based 'upon an appropriate <br /> fuel standard representative of the suspect fuel. <br /> ` If an appropriate sample for calibration does not exist, <br /> M-• as in the case of an aged fuel, calibration shall be <br /> done using a "non-aged" representative of the suspect <br /> fuel. <br /> Calibration should be established within the estimated <br /> range of contaminant levels within the sample, based on <br /> odor, sheen or prescreening measurements (i.e. , <br /> combustible gas meter, or I.R. method). Where <br /> "non-detectable concentrations" are reported, the level <br /> of detection shall not exceed 10 ppm for soil and 50 ppb <br /> for wate.. <br /> TOTAL PETROLEUM HYDROCARBONS ANALYSIS <br /> (High boiling point hydrocarbons) <br /> Thia'. analysis includes the range of diesel motor fuels <br /> and 'Oommercial grade jet fuels. <br /> �— -2- <br />