title: Comparison of water wash versus freon wash in preparation of membranes for particulate matter determination.
mesh_terms: D005617:Chlorofluorocarbons, Methane; D004340:Drug Contamination; D005374:Filtration / Q000295:instrumentation*; D008567:Membranes, Artificial; D008722:Methods; D012996:Solutions; D014867:Water
chemical_list: D005617:Chlorofluorocarbons, Methane; D008567:Membranes, Artificial; D012996:Solutions; D014867:Water