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
Ace Glass, Inc. 90mm straight tubes with 145-174 micron fritted discs, for construction of special apparatus.
90mm straight tubes with 145-174 micron fritted discs, for construction of special apparatus.
Essendant DISPENSERTCHLSWL MN
The MOD Dispenser Systems are designed with innovative internal dispensing modules that plug and play to give you the flexibility to build a dispenser customized to meet your requirements The E-Series dispensers provide electronic motion-activated dispensing with the option for an unexposed sheet making it ideal for healthcare facilities This system is also quieter than enMotion and Tork Intuition systems The MOD System combines touchless technology with the bacteria-reducing benefits of drying with paper towels supporting and promoting better hand and surface hygiene When installed properly this dispenser meets the ADA Standards for Accessible Design 28 CFR Part 36 local rules may vary
Sterlitech Corporation Polycarbonate (PCTE) Membrane Filters, 3.0 Micron, 47mm, 100/Pk
Polycarbonate Track Etch (PCTE) membranes are made from a thin, microporous polycarbonate film material. It is ideally suited for use in blood assays and high-purity and general filtration.
Sterlitech Corporation Polyester (PETE) Membrane Filters, Transparent, 0.4 micron, 12 Micron Thickness, 2E6 pores/cm2, 25mm, 100/pack
Polyester (PETE) Membrane Filters, Transparent, 0.4 micron, 12 Micron Thickness, 2E6 pores/cm2, 25mm, 100/pack
ELKO FILTERING CO NYLON MESH 41 MICRON 1YD
Nylon Monofilament Precision Woven Mesh - 41 Micron Opening, Open Area 31%, 40 Inch wide, Sold by Yard - Available from 1 - 5000 Microns - Sefar 03-41/31
Sterlitech Corporation Polycarbonate (PCTE) Membrane Filters, 0.2 Micron, 25mm, 100/Pk
Polycarbonate Track Etch (PCTE) membranes are made from a thin, microporous polycarbonate film material. It is ideally suited for use in blood assays and high-purity and general filtration.
Cole-Parmer Spectra/Mesh 148145 Screen Discs, 47 mm, Nylon, 100 µm, pack of 10
There are four material options to choose from. The nylon mesh filters out particles down to 8 µm. These are ideal for finer macrofiltration needs and are suitable with all aqueous solutions. Polypropylene (PP) mesh offers strength and stability, while also being resistant to most acids, alkalies, and alcohols. These screens are autoclavable. The PEEK mesh holds its shape and features superior chemical resistance. These are ideal for general filtration, are resistant to acidic and alkaline solutions, and feature temperature stability up to 250°C. The 304 Stainless Steel woven discs or sheets are ideal for high differential pressure applications as they are durable and feature extra strength.
Cole-Parmer PTFE Membrane, 25 mm, 0.45 m, 100/pk
Durable laminated PTFE membranes are unaffected by even the most corrosive compounds, including concentrated acids, alkaline, and propellants. Membranes withstand temperatures from –100 to 130C (–148 to 266F). Use these hydrophobic membranes for sterile venting and filtration of gas, air steams, and organic solvents. Prewet with acetone or methanol for aqueous solutions.
