TITLE
Field Test of a Generic Method for Halogenated Hydrocarbons:
SemiVOST Test at a Chemical Manufacturing Facility

AUTHOR(S)
James F. McGaughey, Joan T. Bursey, Raymond G. Merrill

PERFORMING ORGANIZATION NAME AND ADDRESS
Radian Corporation
P. O. Box 13000
Research Triangle Park, NC 27709

SPONSORING AGENCY NAME AND ADDRESS
National Exposure Research Laboratory
Office of Research and Development
U.S. Environmental Protection Agency
Research Triangle Park, NC 27711

ABSTRACT
Validation of a method for a group of analytes means that the
precision and bias have been established experimentally through
field tests.  The US EPA, under the authority of Title III of the
Clean Air Act Amendments of 1990, is providing sampling and
analytical methods for the listed semivolatile organic compounds. 
The candidate methods for semivolatile organic compounds are SW846
Sampling Method 0010 and Analytical Method 8270, which are
applicable to stationary sources.  Two field tests were conducted
using quadruple sampling trains with dynamic spiking were performed
according to the guidelines of EPA Method 301.  The first field
test was performed at a site with low levels of moisture.  The
second test reported here was conducted at a chemical manufacturing
facility where chemical wastes were burned in a coalfired boiler. 
Poor recoveries obtained for the spiked analytes at the second test
were attributed to wet sorbent from the sampling train, use of
methanol to effect complete transfer of wet sorbent from the
sampling module, and use of extraction techniques which did not
effect a complete separation of methylene chloride from methanol. 
A procedure to address problems with preparation of samples from
Method 0010 is included the report.