Upper Atmosphere Monitoring Program
Description:
"An apparatus designed to test aerosol filter efficiency at pressures equal to or less than atmospheric and at linear face velocities of 5 to 1000 ft/ min is described. Aerosol collection efficiency studies were completed for IPC paper at 20,000 and 40,000 ft. Data developed in these studies indicate that ia the impaction and diffusion regions collection efficiency increases with altitude for all linear face velocities less than 800 ft/min. A propeller-type flowmeter, calibrated to measure the …
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Date:
unknown
Creator:
Stern, Sidney; Jones, Sam; Schekman, Al & Stuart, Robley
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