Field evaluation of EPA Proposed Method 0040 (sampling and analysis of volatile organic compounds using Tedlar{reg_sign} bags)
- Eastern Research Group, Inc., Morrisville, NC (United States); and others
A field test has been performed to evaluate EPA Proposed Method 0040 (Sampling of Principal Organic Hazardous Constituents from Combustion Sources Using Tedlar{reg_sign} Bags), a method designed for the collection of volatile organic compounds present in a combustion source at concentrations above the range of EPA Method 0030 (VOST). Proposed Method 0040 is based on the results of laboratory studies to develop and refine a sampling train and methodology to collect and analyze volatile organic compounds present in source emissions between 100 and 1000 {mu}g/m{sup 3}. In the laboratory studies, a design for the sampling train was developed, the train was evaluated using dynamic spiking techniques, and a standard sampling method in SW-846 format was prepared. An analytical methodology using gas chromatography/mass spectrometry (GC/MS) was also developed to provide qualitative identification of specific compounds and quantitative results based on calibration for individual compounds. The original design of the sampling train was modified by removing a Teflon{reg_sign} check valve at the Tedlar{reg_sign} bag inlet to resolve discrepancies in volumes measured by the train. As a result, leak-check procedures in the proposed method were simplified. A field test of the modified methodology was performed to determine and document the systematic error (bias) and random error (precision) of the method under stationary source sampling conditions. Four similar trains were operated simultaneously using a quadruplicate sampling probe, with dynamic spiking of two of the four quad trains with specific volatile organic compounds, while simultaneously sampling emissions from a coal combustion source. Analytical data were statistically evaluated according to the procedures of EPA Method 301. Fifteen of eighteen volatile organic test compounds met Method 301 acceptance criteria for performance while using the Proposed Method 0040.
- OSTI ID:
- 617765
- Report Number(s):
- CONF-9704195--
- Country of Publication:
- United States
- Language:
- English
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