Dilution sampling system for gaseous pollutants
To reduce problems associated with continuous monitoring of pollutant gases, an impmved sample handling system was developed at an EPA laboratory.By means of a special probe and a flow control loop to which a gas monitor is connected, this interface system dilutes the stack gas in a controlled ratio, thus lowering the dewpoint and reducing the particulate concentration in the sample stream to the analyzer.(auth)
Rodes, C. (1973). Dilution sampling system for gaseous pollutants. INSTRUMENTATION TECHNOLOGY, 20(10), 41-44.