Ensure quality control in routine microbiological filtering. Sartorius Nongridded Sterile Cellulose Membrane Filters are single-packed membranes used for colony counting, particle testing, microscopy and sterility testing. Choose between cellulose acetate or cellulose nitrate membranes in a variety of pore sizes.
Sterile, individually packaged filters for strict quality control
- Pre-sterilized via gamma irradiation at 25kGray
- Ready-to-use to save preparatory time
- Avoids contamination of remaining filters in opened packs
- Filter identification and lot number are printed on each individual envelope
- Each membrane is checked to ensure:
- It is not damaged in any way
- It is positioned correctly with no slippage under the edge seal
- It is free of particles
- Each envelope has readable lettering
High-quality membranes for a variety of lab applications
- Defined particle retention and outstanding, reliable recovery rates for microorganisms
- Choice of two membrane materials:
- Cellulose nitrate filters (mixed cellulose ester) assure effective retention combined with high flow rates and optimal colony growth
- Cellulose acetate filters combine high flow rates and thermal stability with very low adsorption characteristics
- Available in 7 different pore sizes: 0.2μm, 0.45μm, 0.65μm, 0.8μm, 1.2μm, 3.0μm and 8.0μm
- 8μm filters are used as prefilters in a prefilter attachment. They retain coarse particles, while allowing microorganisms through for recovery on a bacteria-retentive filter
- 0.2μm filters are the standard for sterile filtration and are validated by the Bacteria Challenge Test (BCT)
- 0.45μm filters are manufactured according to ISO 7704
- White, un-gridded filters in 47 or 50mm (1.9 or 2 in.) diameter sizes
Specifications
- Color: White
- Disposable: Single-use
- Filter Type: Membrane Filter
- Format: Disc
- Material: Cellulose Acetate
- Material (Membrane): Cellulose Acetate
- Pore Size: 0.2 μm
- Sterility: Sterile
- For Use With (Application): For colony count; sterility testing; particle count; microscopy
- Hydrophobicity: Hydrophilic
- Individually wrapped: Yes
- No. per Pack: 100/Pk.
- Type: Membrane Filter
- Diameter (English): 1.9 in.
- Diameter (Metric): 47 mm
- Unit Size: Pack