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APT Project CMX2453 Test Report, Kiln Stack Emissions (March 24, 2003) Each sampling period cdnsisted of extracting a gas sample from the stack under isokinetic flow conditions fora 192-minute period. The gas passed through an in-stack glass nozzle, a heated glass probe, aloes-residue, heated, quartz fiber filter, a series of six (6) chilled glass impingers, and a calibrated dry gas meter. Stack gas velocity and volumetric flow rate sampling consisted of conducting a temperature and differential pressure traverse of the stack along the PM/Metals grid of sampling points using a K-type thermocouple and an S-type pitot tube. A dry, integrated sample of stack gas was collected in a Tedlar bag. At the start of sampling, the first two impingers were filled with 100 ml of 10% hydrogen peroxide/5% nitrc acid. The third impinger was empty. The fourth and fifth impingers contained 100 ml of 4% potassium permanganate/10% sulfuric acid. The sixth impinger contained approximately 250 grams of dried silica gel. Following each sampling period, the filter, a series of acetone and dilute nitric acid rinses of the probe and nozzle, and the contents of the impingers were recovered for subsequent gravimetric and ICPMS analysis. The front half and back half sample fractions were combined priortomultl-metals analysis. The contents of the 7edlar bag were analyzed for carbon dioxide and oxygen content using an Orsat apparatus. The laboratory data were combined with field data to calculate the PM and metals (on an elemental basis) emissions in units of milligrams per dry standard cubic meter corrected to 7% oxygen (mgldscm @ 7% 02 -for multi-metals only), pounds per hour (Ib/hr), and pounds per ton of dry feed to the kiln (for PM only). 5.1.1. Supplemental QA/QC Procedures - PM and Metals As required by the method, a sample of unexposed impinger solutions and a set of three fitters were analyzed along with the emission samples. Additionally, a field blank was acquired during the test program. The blank train was assembled at the sampling location, leak checked three times, and recovered. The recoveries were analyzed like a regulatory sample to quantify background concentrations. 5.2. PCDDs/PCDFs. PCBs and PAHs PCDD/PCDF, PCB and PAH emissions were determined in accordance with EPA Method 23, 428 and 429. The methods were combined in a single sampling train. Each sampling period consisted of extracting a gas sample from the stack under isokinetic flow conditions fora 192-minute period. The gas passed through an in-stack.giass nozzle, a heated glass probe, a heated quartz fiber filter, a chilled glass condenser, a sorbent trap, a series of four (4) chilled glass impingers to remove residual water, and a calibrated dry gas meter. Stack gas velocity and volumetric flow rate sampling consisted of conducting a temperature and differential pressure traverse of the stack along a grid of sampling points page 15