RT Journal Article SR Electronic T1 Sterile Vent Filter Function Test JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 70 OP 71 VO 35 IS 2 A1 Olson, W. P. A1 Houten, L. Vanden A1 Ellis, J. E. YR 1981 UL http://journal.pda.org/content/35/2/70.abstract AB The present communication describes a simple, inexpensive, sterile vent function test that can be performed anywhere with use of only ambient organisms for the challenge.