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Original Articles

Recommendations on a Preferred Procedure for the Determination of Particulate in Gaseous Emissions

Pages 871-874 | Published online: 13 Mar 2012
 

Abstract

Studies were made over a 3 year period to evaluate the EPA Method 5 manual particulate sampling procedure in the forest products industry through laboratory and field studies. Results of the study showed that several modifications could be made to improve the performance and suitability of the method for routine source particulate measurements. Physical system changes included the use of a Teflon-lined umbilical cord to the collection system. Procedure changes included changing the isokinetic sampling rate variations to ±20% for emission sources where the particles were smaller than three micrometers in aerodynamic diameter, purging the impinger solutions with an inert gas immediately following collection, and separate evaporation of impinger organics and inorganics at 25 °C and 105°C, respectively. Calculation changes included inclusion of impinger-caught particulate and separate consideration of inorganic and organic particulates.

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