Dioxins and Furans – EN 1948 Filter Condenser Method
The filter is placed after the probe.
The filter has to be kept below 125
°
C but above the flue gas dew point.
When high dust loading is expected a quartz wool filter or a cyclone may be incorporated into the sampling train before the filter to prevent the filter from being overloaded.
Downstream a condenser is attached.
The sample gas is cooled to below 20
°
C.
The gaseous and aerosol parts of the PCDDs and PCDFs are captured by impingers and/or solid adsorbents. This method uses a heated titanium lined nozzle and sampling line.
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