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<br />r-"r <br /> <br />;r'.:.~_ ,...:": ....;_\~' -.-~_"'''''> <;:~;;::J; <br /> <br /> <br />.c' ...~, -_ ~.40 <br /> <br />-.- -~. <br /> <br />.' ' <br /> <br />,. <br /> <br />, <br />;, . '~" -!:Ti \ :.~~ <br /> <br />, . ., <br /> <br />. , ' <br />Emission Test Report <br />EMC W A-2-08 <br />Section 4 <br />Revision: 0 <br />Date: September 30, 1999 <br />Page 3 of 9 <br /> <br />r-"f <br />,j <br /> <br />I <br />I <br /> <br />was in progress. Each integrated gas sampling apparatus was leak checked before and after <br />each test run. <br /> <br />4.1.4 Determination of Moisture Content <br /> <br />r,1 <br />' - <br />~. ic <br /> <br />(1 <br />1:] <br /> <br />Method 4 in Appendix A of 40 CFR 60, incorporated as part of Methods 23, 26A, and <br />29, was used to detennine the moisture (water vapor) content of the gas stream. Moisture <br />collected during sampling was determined gravimetrically from the difference between the <br />initial and final weights of all of the impingers in a train, including the resin cartridge, <br />where used. <br /> <br />; ",-j' <br />L <br /> <br />~ -1 <br />L~J <br /> <br />4.1.5 Sampling for PCDDs and PCDFs <br /> <br />e'''1 <br /> <br />lJ <br /> <br />Method 23 in Appendix A of 40 CFR 60 (basis for SOP MRI-8404) was used to <br />collect samples for dioxin and furan analysis. Clarifications of and modifications to the <br />method are included in the following discussion. <br /> <br />] <br />;"4 <br />f.t <br />i.,. <br /> <br />Quartz glass nozzles and probe liners were used in water-cooled probes. The internal <br />surface of the compression fittings used for connecting nozzles to probe liners are <br />pennanently coated with abrasion-resistant Teflon@ to prevent sample gas contact with the <br />stainless steel, and the connections are positioned within the water-cooled section of each <br />probe. <br /> <br />.~.,- 'J <br />: I <br />J <br /> <br />Heat traced, ~12-inch D.D. with 1/a- inch wall Teflon@ tubing was used as a sample <br />transfer line (STL) between the probe liner outlet and the filter holder inlet in all of the <br />trains because the proximity of adjacent test ports and other obstructions would not allow <br />sampling with trains assembled in the normal manner. A glass coupling was used to <br />connect the STL tubing to the probe liner outlet while the other end of the tube was <br />connected directly to the filter holder inlet. The STL was maintained at 248:f:25 of during <br />sampling. Samples were recovered from the STL in the same manner as for the probe, as <br />specified in Method 23. <br /> <br />~J <br /> <br />~J <br /> <br />!"1 <br /> <br />:.J <br /> <br />No cyclonelflask assembly was necessary in front of the filter holder to prevent <br />overloading the filter. Filter supports in the filter holders were Teflon@-coated, stainless <br />steel screening. Quartz fiber filters having the same specifications described in the method <br />were used. Each cartridge (sorbent trap) was loaded with approximately 65 grams of <br />XAD-2 resin. <br /> <br />rl <br />,J <br /> <br />Two silica gel impingers were used in each train. This was done to minimize any need <br />to swap those components during a test run. <br /> <br />LJ <br /> <br />MRI-AED\R49SI-OS-03 S4.wpd <br /> <br />njJ.f\(f\ <br />~ <br />