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Improved Bubble-Point TestImproved bubble-point test devised for large pleated filter elements. Sizes of pores in filters determined more accurately. Test method replaces older test accurate for pore sizes of 20 microns or less, but subject to gross inaccuracy for filter elements with pores of 70 microns or larger. Unlike older test, no measurement of pressure is necessary. Also no need to estimate average depth of filter-element pleats below surface of liquid.
Document ID
19940000205
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Welch, Peter J.
(NASA John F. Kennedy Space Center, Cocoa Beach, FL.)
Rhodes, Russell E.
(NASA John F. Kennedy Space Center, Cocoa Beach, FL.)
Aman, Robert
(Wiltech, Inc.)
Nagy, Zoltan
(Wiltech, Inc.)
Date Acquired
August 16, 2013
Publication Date
April 1, 1994
Publication Information
Publication: NASA Tech Briefs
Volume: 18
Issue: 4
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
KSC-11512
Accession Number
94B10205
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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