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APPLICATION GUIDE FOR MEASUREMENT OF PM2.5 AT STATIONARY SOURCES
Citation:
Dawes, S. AND W. Farthing. APPLICATION GUIDE FOR MEASUREMENT OF PM2.5 AT STATIONARY SOURCES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/3-90/057 (NTIS PB90247198), 1990.
Description:
This manual presents two options which allow determination of stationary source PM2.5 to be measured in conjunction with PM10 and it can be measured as PM2.5 only. hen determining both PM2.5 and PM10, either the Constant Sampling Rate (CSR) procedures or the Exhaust Gas Recycle (EGR) sampling system can be used. hen PM2.5 is the only size fraction of interest the CSR procedures are selected. his application guide should be used as a companion to the application guides for CSR and EGR. tack gas is sampled at multiple points using an in-stack inertial sampler with a constant flow rate. or PM2.5 measurements only, the maximum allowable error due to anisokinetic sampling is + or -10% for 2.5 um particles. he range of duct velocities permitted for a nozzle with this maximum allowable error is broad enough that rarely is it necessary to break a traverse into subtraverses with different sampling nozzles. he sampling device described in this manual is Cyclone IV of the SRI/EPA five-stack series cyclone. his device provides a 2.5 um size cut at a flow rate of approximately 0.36 dscfm; the precise flow rate depends on local stack conditions. hese procedures specify the precise flow rate for PM2.5 separately and PM10 when the described cyclone particle sizers are used.
