Applicability: You can use this method to measure CPM from stationary source emissions after filterable particulate matter has been removed. CPM is measured in the emissions after removal from the stack and after passing through a filter. You can use Method 17 to collect condensable and filterable particulate material from sources operating at stack temperatures and/or samples collected below 30°C (85°F) if the filter is treated as described in Sections and 11.2.1 of this method. You may use this method only for stationary source emission measurements.]

Summary: The CPM is collected in dry impingers after 4 OTM-28 April 15, 2009 filterable particulate material has been collected on filters maintained above 30°C (85°F) using Method 5, 17, or 201A. The organic and aqueous fractions of the impingers and an out-ofstack CPM filter are then taken to dryness and weighed. The total of all fractions represents the CPM. Compared to the December 17, 1991 promulgated Method 202, this method removes water from the impingers and includes the addition of a condenser followed by a water dropout impinger immediately after the final in-stack or heated filter. This method also includes the addition of one modified Greenburg Smith impinger and a CPM filter following the water dropout impinger. Figure 1 of Section 18 presents the schematic of the sampling train configured with these changes.

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