POLYURETHANE (PU)-FOAM-PLUG IMPINGER SAMPLING TRAIN FOR MONITORING OFPCDD/F-EMISSIONS FROM INCINERATORS AND OTHER EMISSION SOURCES/

A versatile polyurethane-foam (PUF)/impinger sampling train (ST) is pr esented, which allows emission monitoring of a variety of sources, suc h as stacks, furnaces, scrubbers or smoke gases from fire simulation t ests. Flow rates between 0.5 m(3)/hr and 20 m(3)/hr can be achieved co mbining the adequate size of ST-apparatus. This type of PUF/Impg.-ST h as been successfully tested, compared with other STs and is used for e mission monitoring as well as for measurements in the different stages of incinerators ecc., for workplace monitoring, process optimization and research, up to gas temperatures of 1200 degrees C and with high d ust loads. Depending on the apparatus and flow rate setting detection limits down to 1 pg/m(3) PHDDs/Fs can be attained. Data on sampling an d stack measurements as well as the detailed procedure for sample prep aration and clean up are given.