Filtration Membrane Discs
Thin, precut membrane rounds for high-throughput, fast filtration of liquid and gas samples. Gridded and non-gridded discs. Various materials including mixed cellulose ester, polycarbonate, PTFE, nylon, and PVDF. For air monitoring/analytical research.
Sizes
Filter membranes are made in a range of diameters, typically designed to fit a specific holder or manifold.
Materials
Filter membrane can be made from cellulose, mixed cellulose esters (MCE), polyvinylidene fluoride (PVDF), polyethersulfone (PES), polyvinyl chloride (PVC), polytetrafluoroethylene (PTFE), nylon, polycarbonate (PC), polyester, polyethylene terephthalate (PET), and polypropylene (PP). Other membrane materials include aluminum oxide, gelatin, porcelain, and glass.
Pore Size
The size of membrane pores determines which particles will be retained by the filter. A pore size of 0.2 µm is small enough to remove microbes from solutions; a 0.45 µm ore size can remove larger particulates.
Color and Grids
White membrane filters may be plain or marked with square grids (outlined in black) that can help with enumerating particles. Gridded or plain black membrane filters may be helpful when filtering light-colored particulates.
Sterility
Filter membranes may be pre-sterilized or may be sterilized using ethylene oxide, gamma irradiation, or autoclaves. The need for sterility is determined by the application, which are many and varied:
- Light microscopy samples
- Cytology sample preparation
- Electron microscopy samples
- Air quality and other environmental monitoring
- Water analysis and water quality testing
- Microbiology colony counting and quality control
- Chemotaxis
- Sterile preparation of buffers, tissue culture media, microbiological media, and other biological fluids
Sartorius Environmental Air Monitoring Gelatin Membranes
Collect airborne microbes and viruses. Sartorius Environmental Air Monitoring Gelatin Membranes guarantee reliable and accurate results. They are sterile and water soluble with a high retention rate. Choose from a range of sizes in single-wrapped disposable filters with holders or packs of filter disks.
MilliporeSigma™ MF-Millipore™ Membrane Filter, 8 μm
Mixed cellulose esters (MCE) membrane, hydrophilic
MilliporeSigma™ MF-Millipore™ Membrane Filter, 5 μm
MF-Millipore™ Membrane Filter are mixed cellulose esters (MCE) membrane, hydrophilic.
MilliporeSigma™ PVC Membrane Filters, 5 μm
For air monitoring applications to analyze silica, carbon black or quartz particulates
Cytiva Pallflex Emfab™ Air Monitoring Filters - TX40HI20WW, 90 mm (100/pkg)
Versatile Filters Uniquely Suited for a Broad Range of Air Monitoring ApplicationsUseful for high temperature and hot gas air monitoring applications.Ideal for stack sampling and diesel emissions testing. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva Pallflex Emfab™ Air Monitoring Filters - TX40HI20WW, 110 mm (100/pkg)
Versatile Filters Uniquely Suited for a Broad Range of Air Monitoring ApplicationsUseful for high temperature and hot gas air monitoring applications.Ideal for stack sampling and diesel emissions testing. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva Pallflex Emfab™ Air Monitoring Filters - TX40HI20WW, 8 x 10 in. (100/pkg)
Versatile Filters Uniquely Suited for a Broad Range of Air Monitoring ApplicationsUseful for high temperature and hot gas air monitoring applications.Ideal for stack sampling and diesel emissions testing. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) Pallflex Emfab™ Air Monitoring Filters - TX40HI20WW, 85 mm (100/pkg)
Versatile Filters Uniquely Suited for a Broad Range of Air Monitoring ApplicationsUseful for high temperature and hot gas air monitoring applications.Ideal for stack sampling and diesel emissions testing. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) 25 mm Air Monitoring Cassettes - 25 mm support pads, non-sterile (100/pkg)
The 25 mm air monitoring cassettes are conductive and non-static cassettes used to monitor respirable constituents, such as fibers, silica, metal, and dust.Conductive and non-staticLeak-proofCarbon-filled polypropylene housingThese cassettes are leak proof and tamper proofFemale luer-type inlet. Female luer built-in hose adapter outlet.The carbon-filled polypropylene housing prevents adherence of particles to cassette wall to ensure more accurate analysis.Ordering information: Filter Media: GN-4 Metricel membrane (mixed cellulose esters) with cellulose support pad. Housing: Carbon-filled polypropylene. This product is not approved for use in medical, clinical, surgical or other patient applications.
MilliporeSigma™ Fluoropore™ Membrane Filter, Pore Size: 5 μm
Unlike fibrous filter media that trap particles in their matrix, Fluoropore™ membranes collect particles on their surface. For use in airborne particle monitoring applications.
Sartorius PTFE (Polytetrafluorethylene) Membrane Filters
Filter air and gasses, even at low differential pressures. Sartorius PTFE (Polytetrafluorethylene) Membrane Filters are permanently hydrophobic with low adsorption and excellent chemical compatibility. Choose from four pore sizes in a variety of diameters.
Cytiva Nucleus Membrane
Made from polycarbonate film, for precision analysis of track-etched manufacturing
MilliporeSigma™ MF-Millipore™ Membrane Filter, 0.8 μm
Mixed cellulose esters (MCE) membrane, hydrophilic
MilliporeSigma™ MF-Millipore™ Membrane Filter, 0.45 μm
MF-Millipore™ Membrane Filter are mixed cellulose esters (MCE) membrane, hydrophilic.
MilliporeSigma™ Nylon Net Filters, 10 μm
Hydrophilic nylon membrane