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Determination
of Nonsulfate Particulate Matter Emissions from Stationary Sources
– USEPA Method 5F USEPA Method 5F is used to determine nonsulfate Particulate Matter (PM) emissions from stationary sources. Particulate matter is withdrawn isokinetically from the source and collected on a filter maintained at a temperature in the range 160 ± 14 °C (320 ± 25 °F). The collected sample is extracted with water. A portion of the extract is analyzed for sulfate content by ion chromatography. The remainder is neutralized with ammonium hydroxide (NH4OH), dried, and weighed. The weight of sulfate in the sample is calculated as ammonium sulfate [(NH4)2SO4], and is subtracted from the total particulate weight; the result is reported as nonsulfate particulate matter. |
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