The U.S. EPA has published standard sampling routines for stack gases. These reference methods give representative concentration data for compounds. These test methods are validated by laboratory and field studies, and the data obtained from them have predictable accuracies and reproducibilities. Table 5.9.2 lists the standard sampling routines for stack gases (see also, Code of Federal Regulations, Title 40, Part 60 App. A).
The sampling train described in reference methods 5 and 8 together with operating procedures are discussed in Section 5.14. The following sampling method numbers refer to the methods identified in EPA guidance documents and reports (U.S. EPA 1989; 1990; Harris et al. 1984):
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