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DESIGN AND OPERATIONS OF A DYNAMIC TEST CHAMBER FOR MEASUREMENT OF BIOCONTAMINANT POLLUTANT EMISSION AND CONTROL
Citation:
Osdell, D., K. Foarde, AND J. Chang. DESIGN AND OPERATIONS OF A DYNAMIC TEST CHAMBER FOR MEASUREMENT OF BIOCONTAMINANT POLLUTANT EMISSION AND CONTROL. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-95/093 (NTIS PB95232823), 1994.
Description:
The paper discusses the design and operation of a room-size dynamic chamber used to measure biocontaminant pollutant emission and control. he chamber, a cube with inside dimensions of 2.55 m, was constructed with stainless steel walls and floor and an acrylic drop-in ceiling. emperature (15 to 32 C) and relative humidity (55 to 95% RH) are controlled by an air handler, conventional ductwork, and ceiling diffusers with an air circulation rate between 1.4 and 4.8 cu m/min. eiling fan is used when additional mixing is required. ccess to the chamber is through a door or a glove-wall and pass-through. he chamber is in a cleanroom. he chamber can be used with three types of microbiological experiments: (1) growth on various building materials, (2) emission and deposition experiments, and (3) both room-type and in-duct tests of air cleaners. he chamber permits ready access for use and comparison of microbiological and conventional aerosol test instrumentation. rotocols have been developed for aerosol dispersion, uniformity evaluation, flow and air exchange characterization, and microbiological decontamination.
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DESIGN AND OPERATIONS OF A DYNAMIC TEST CHAMBER FOR MEASUREMENT OF BIOCONTAMINANT POLLUTANT EMISSION AND CONTROL