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VOLATILE ORGANIC SAMPLING TRAIN - SOOT INTERFERENCE REPORT
Citation:
Hinshaw, G., F. Wilshire, AND L. Johnson. VOLATILE ORGANIC SAMPLING TRAIN - SOOT INTERFERENCE REPORT. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-92/208 (NTIS PB93144145), 1993.
Description:
The U.S. Environmental Protection Agency uses Method 0030, the Volatile Organic Sampling Train (VOST), as a tool in determining the destruction and removal efficiencies of industrial boilers co-firing hazardous waste. ecently, concerns have been expressed over possible measurement biases due to soot deposits within the VOST. aboratory study was initiated to investigate the collection efficiency of the method under sooty conditions. ethod collection efficiency was evaluated by comparing volatile organic compound (VOC) levels in a control VOST (free of soot contami-nation) to VOC levels recovered while using a soot-ladenparticulate filter in the VOST probe assembly. OCs were evaluated over the range of boiling points covered by the VOST method. ompounds in the upper range of boiling points (120 to 130 degrees C) were emphasized. tatistical evaluation of the data collected indicated that too of the higher boiling point compounds were negatively biased by the presence of moderately high levels of soot on the VOST particulate filter. t is not likely, however, that these findings would have a major impact on previously collected hazardous waste incinerator data, since the VOST-Soot effect was detected only at the moderately high soot loadings. his level of soot loading is not typical of properly operating hazardous waste incinerators and would possibly warrant consideration only with very sooty boiler and industrial furnace applications.
