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APT Project CMX2453 <br />Test Report, Kiln Stack Emissions (March 24, 2003) <br />Each sampling period consisted of extracting a gas sample from the stack under isokinetic <br />flow conditions fora 64-minute period. The gas passed through an in-stack glass nozzle, a <br />heated glass probe, aloes-residue, heated, quartz fiber filter, a series of five (5) chilled <br />glass impingers, and a calibrated dry gas meter. Stack gas velocity and volumetric flow <br />rate sampling consisted of conducting a temperature and differential pressure traverse of <br />the stack along the PM/HCI grid of sampling points using a K-type thermocouple and an S- <br />type pitot tube. A dry, integrated sample of stack gas was collected in a Tedlar bag. <br />Prior to sampling, the first two impingers each contained 100 ml of 0.1 N sulfuric acid <br />solution. The third and fourth impingers each contained 100 ml of 0.1 N NaOH. The fifth <br />impinger contained approximately 250 grams of dried silica gel. <br />Following each sampling period, the contents of the first two impingers were recovered for <br />subsequent IC analysis for chloride ions to determine the HCI content of the stack gas. <br />The contents of the third and fourth impingers were spiked with sodium thiosulfate (to <br />ensure complete conversion of the hypohalous ion to the halide ion) and recovered for <br />possible future IC analysis for chloride ion to determine the diatomic chlorine (Cls) content <br />of the stack gas. The contents of the Tedlar bag were analyzed for carbon dioxide and <br />oxygen content using an Orsat apparatus. The laboratory data were combined with field <br />data to calculate the PM and HCI emissions in units of parts per million, dry volume basis <br />corrected to 7% oxygen (ppmvd @ 7% OZ -for HCI only), pounds per hour (Ib/hr), and <br />pounds per ton of dry feed to the kiln (for PM only). <br />5.3.1. Supplemental QA/QC Procedures -HCI <br />As required by the method, a sample of unexposed impinger solutions was analyzed along <br />with the emission samples, Additionally, a true sample train blank was collected and <br />analyzed concurrent with the emissions samples. Field blank collection procedures were <br />identical to those detailed in Section 5.1.1 for PM /Metals. <br />5.4. Formaldehyde (HCHO~ and Acetaldehyde (CHaCHO) <br />Formaldehyde and acetaldehyde emissions were determined in accordance with Method <br />0011. <br />Each sampling period consisted of extracting a gas sample from the stack under isokinetic <br />flow conditions fora 64-minute period. The gas passed through an in-stack glass nozzle, a <br />heated glass probe, a series of four (4) chilled glass impingers, and a calibrated dry gas <br />meter. Stack gas velocity and volumetric flow rate sampling consisted of conducting a <br />temperature and differential pressure traverse of the stack along a grid of sampling points <br />using a K-type thermocouple and an S-type pitot tube. <br />page 17 <br />