Cellulose Nitrate Membrane Filters Edge Hydrophobic

Edge hydrophobic membrane typically used for colony count, sterility testing of drugs. Solution containing products which affect microbial growth and hydrophobic edge does not permit lateral flow, so that drug would not be able to penetrate under sealing area of filter holder. Residue of drug in the effective filtration area is removed completely by consistent rinsing and micro organisms grow well during incubation.