RT Journal Article SR Electronic T1 Diffusion and Bubble Point Testing of Microporous Cartridge Filters: Electromechanical Methods JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 117 OP 124 VO 37 IS 4 A1 Olson, W. P. A1 Gatlin, L. A. A1 Kern, C. R. YR 1983 UL http://journal.pda.org/content/37/4/117.abstract AB The Automatic Diffusion Tester (Millipore), Electronic Forward Flow Test Kit (Pall), and Sartocheck (Sartorius) filter test machines were evaluated for diffusion/bubble point testing of pleated membrane filter cartridges. Each machine performed according to the claims of the manufacturer and each was validated by means of simple tests. Each of the machines was unique in some particular, and each of them can be considered a useful adjunct to the evaluation and control of process filters.