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METHOD 25 - DETERMINATION OF TOTAL GASEOUS NON-METHANE ORGANIC EMISSIONS AS CARBON FROM STATIONARY SOURCES
Citation:
DeWees, W., G. Howe, AND D. Lehmden. METHOD 25 - DETERMINATION OF TOTAL GASEOUS NON-METHANE ORGANIC EMISSIONS AS CARBON FROM STATIONARY SOURCES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/8-91/209 (NTIS PB92113026), 1991.
Description:
Section 3.17 describes the procedures and specifications for determining volatile organic compounds as total gaseous non-methane organics from stationary sources. n emission sample is withdrawn from the stack at a constant rate through a heated filter and a chilled condensate trap by means of an evacuated sample tank. fter sampling is completed, the TGNMO are determined by independently analyzing the condensate trap and sample tank fractions and combining the analytical results. he organic content of the condensate trap fraction is determined by oxidizing the NMO to CO2 and quantitatively collecting the effluent in an evacuated vessel; then a portion of the CO2 is reduced to CH4 and measured by an TIP. he organic content of the sample tank fraction is measured by injecting a portion of the sample into a gas chromatographic column to separate the NMO from carbon monoxide (CO), CO2, and CH4; the NMO are oxidized to CO, reduced to CH4 and measured by an FID. uality assurance guidance is provided in Section 3.17.
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METHOD 25 - DETERMINATION OF TOTAL GASEOUS NON-METHANE ORGANIC EMISSIONS AS CARBON FROM STATIONARY SOURCES