RT Journal Article SR Electronic T1 A Consensus Rating Method for Small Virus-Retentive Filters. II. Method Evaluation JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 334 OP 343 VO 62 IS 5 A1 Brorson, Kurt A1 Lute, Scott A1 Haque, Mohammed A1 Martin, Jerold A1 Sato, Terry A1 Moroe, Ichiro A1 Morgan, Michael A1 Krishnan, Mani A1 Campbell, Jennifer A1 Genest, Paul A1 Parrella, Joseph A1 Dolan, Sherri A1 Martin, Susan A1 Tarrach, Klaus A1 Levy, Richard A1 , YR 2008 UL http://journal.pda.org/content/62/5/334.abstract AB Virus filters are membrane-based devices that remove large viruses (e.g., retroviruses) and/or small viruses (e.g., parvoviruses) from products by a size exclusion mechanism. In 2002, the Parenteral Drug Association (PDA) organized the PDA Virus Filter Task Force to develop a common nomenclature and a standardized test method for classifying and identifying viral-retentive filters. A test method based on bacteriophage PP7 retention was chosen based on developmental studies. The detailed final consensus filter method is published in the 2008 update of PDA Technical Report 41: Virus Filtration. Here, we evaluate the method and find it to be acceptable for testing scaled-down models of small virus-retentive filters from four manufacturers. Three consecutive lots of five filter types were tested (Pegasus SV4, Viresolve NFP, Planova 20N and 15N, Virosart CPV). Each passed the criteria specified in the test method (i.e., >4 log10 PP7 retention, >90% intravenous immunoglobulin passage, and passing integrity/installation testing) and was classified as PP7-LRV4.