The major area of application for Biosart® 250 Funnels is microbiological analysis of relatively large sample volumes that have a low number of microbes, with membrane filtration being an essential step. In addition, the Biosart® 250 Funnels are also suitable for testing smaller volumes by placing a sample in a few ml of sterile physiological NaCl solution. Biosart® 250 Funnels have been specifically designed for microbiological testing of pharmaceuticals, food, beverages, water and other liquids. They are sterile, ready to use 250 ml plastic funnels and are designed to be placed onto the bases of a vacuum manifold. A Sartorius gridded membrane filter is placed on a stainless steel filter support. A Biosart® 250 Funnels is simply fitted on and the sample is filtered. The funnel is made of polypropylene and is sufficiently elastic for optimal sealing with a bayonet-type closure. Graduations are marked at 50, 100, 150 and 200 ml for sufficiently exact sample volumes. The large inner diameter ensures a high flow rate. The conical form allows a thorough rinsing of the system subsequent to filtration. No liquid is retained in the filter funnel. Biosart® 250 Funnels allow quick performance of the filtrations required in the routine.
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注意事项：
High total throughput
High flow rate
Sterile, individually, sterile packaged available
Use a new, sterile funnel for each test in order to avoid cross contamination
No more holding of hot funnels
The complete filtration is visible
Ready to connect, easy to use and practical handling features
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