Entonnoir de filtration économique, stérile et jetable pour les tests d'analyse microbiologique, tests des denrées agroalimentaire, des matériaux bruts, de la stérilité et la qualité des produits finis. Partie supérieure: en PP, col: en PS.

• Adapters accommodate No. 8 stoppers for use with vacuum manifolds or filter flasks
• 250 ml sizes are useful when testing beverages that may foam
• 513-1471: Membrane turns black when wet, making it easier to detect and count growing colonies
• Upper separates easily from lower for easy membrane access
• High impact polystyrene collars are rugged for reliable performance
• Preassembled, sterile, individually bagged to ensure sample integrity

Each disposable, sterile filter funnel consists of a polypropylene upper chamber, a high-impact polystyrene collar, and a cellulose nitrate membrane. Graduated upper chamber separates easily from the collar for easy access to the membrane. Funnel adapters allow use with No. 8 stoppers; six adapters are included with each case. The 0,45 µm pore size membranes are certified for water quality work including coliform analysis.