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U.S. Department of Energy
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COLLECTION EFFICIENCY OF WHATMAN 41 FILTER PAPER FOR SUBMICRON AEROSOLS

Technical Report ·
OSTI ID:4777838
The collection efficiency of Whatman 41 filter paper has been determined using submicron test aerosols of monodispersed polystyrene latex. Measurements were made over a velocity range of 12 to 195 fpm, using aerosols with diameters of 0.088, 0.188, 0.264, 0.365, and 0.557 mu . For sizes less than 0.557 mu , well-developed efficiency minima occur in the velocity range of 20 to 30 fpm. In no case was the efficiency found to be below 70%. At 195 fpm, the efficiency was essentially size-independent. (auth)
Research Organization:
California. Univ., Livermore. Lawrence Radiation Lab.
DOE Contract Number:
W-7405-ENG-48
NSA Number:
NSA-17-003231
OSTI ID:
4777838
Report Number(s):
UCRL-6691
Country of Publication:
United States
Language:
English

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