White color with black grid facilitates colony counting Economical cellulose nitrate (CN) membranes come sterilized by EtO and are individually wrapped. These hydrophilic membranes do not contain any extractable to inhibit or stimulate growth of bacteria, do not affect pH of the medium, and are suitable for both aqueous and protein filtration. Membranes may be exposed to temperatures up to 55°C (131°F). Additional variations are available; call us for details. Material: Cellulose Nitrate Pore Size (µm): 0.45 Diameter (mm): 47 Surface: Gridded Description: Sterile Gridded Cellulose Nitrate Membranes; 0.45µm Pore, 47mm Dia, 100/Pk

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