TITLE
Improvements in Preparation of Samples Generated by SW-846 Method
0010

AUTHOR(S)
Merrill D. Jackson, Larry D. Johnson, U.S.EPA, James F. McGaughey,
Denny E. Wagoner, Joan T. Bursey, Raymond G. Merrill, Radian

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

SPONSORING AGENCY NAME AND ADDRESS
Method Research and Development Division
Atmospheric Research and Exposure Assessment Laboratory
U. S. Environmental Protection Agency
Research Triangle Park, NC 27711

ABSTRACT
During a field evaluation of a stationary source method (SW-846,
0010), a problem of low sample recovery was encountered.  The
source has a high moisture content and the sampling media was
difficult to remove from the sample container.  The problem was
identified to be the use of methanol to rinse the container.  This
rinsing procedure was allowed under the current method.  A new
procedure has been developed and evaluated that allows the sample
to be removed from the container without use of methanol and also
explains the proper procedure for removal of water from the sample. 
This new procedure is given in this paper.