Correlation of LRV Calculation to Virus Rejection

Challenge test data from both loose ultrafiltration (UF) membranes, where the virus log removal value (LRV) is not correlated with LRV calculation model from the Membrane Filtration Guidance Manual (MFGM), and tight UF membranes, where a LRV calculation model can reliably be used to predict virus LRV, are presented.