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EVALUATION OF THE HIGH VOLUME COLLECTION SYSTEM (HVCS) FOR QUANTIFYING FUGITIVE ORGANIC VAPOR LEAKS
Citation:
Ringler, E. C. EVALUATION OF THE HIGH VOLUME COLLECTION SYSTEM (HVCS) FOR QUANTIFYING FUGITIVE ORGANIC VAPOR LEAKS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-95/167 (NTIS PB96-136395), 1995.
Impact/Purpose:
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Description:
The report discusses a recently developed measurements technique that offers the potential for providing an easy-to-use and cost effective means to directly measure organic vapor leaks. The method, called High Volume Collection System (HVCS), uses a high volume sampling device and a portable flame ionization detector for field analysis. The HVCS can obtain direct measurements of mass emission rates without the need for tenting and bagging. This study of HVCS method performance included both laboratory and field testing. Laboratory evaluation of HVCS results closely matched EPA method results with a difference in total measured emissions of only about 3%. In one field test, the HVCS measured approximately 18% more emissions than the EPA method. However, the bias was present only early in the test. Later in the test, after efforts were made to identify and correct the source of the bias, HVCS bias was essentially zero. With some physical and procedural enhancements, the HVCS may be offered to EPA for approval as an acceptable alternative to the EPA protocol bagging method with gas chromatographic analysis.