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
Sterlitech Corporation Polyester (PETE) Membrane Filters, 1.0 Micron, 25mm, 100/Pk
Sterlitech polyester track etch (PETE) membrane filters, 1 micron pore size, 25 mm diameter, pack of 100. Hydrophilic, solvent resisant film for blood assays, microscopy, and highly caustic samples.
Sterlitech Corporation Sterlitech Silver Membrane, 5 Micron, 47mm, 25/Pk
SILVER MEMBRANE FILTERS, 5.0 MICRON, 47MM, 25/PK
Sterlitech Corporation Polyethersulfone (PES) Membrane Filters, 0.03 Micron, 25mm, 100/PK
POLYETHERSULFONE (PES) MEMBRANE FILTERS, 0.03 MICRON, 25MM, 100/PK
Sterlitech Corporation PTFE Unlaminated Membrane Filters, 10.0 Micron, 25mm, 50/Pk
PTFE MEMBRANE FILTERS, UNLAMINATED, 10.0 MICRON, 25MM, 50/PK
Sterlitech Corporation Polyester (PETE) Membrane Filters, 8.0 Micron, 25mm, 100/Pk
Sterlitech polyester track etch (PETE) membrane filters, 8 micron pore size, 25 mm diameter, pack of 100. Hydrophilic, solvent resisant film for blood assays, microscopy, and highly caustic samples.
Sterlitech Corporation PTFE Unlaminated Membrane Filters, 5.0 micron, 47mm, 50/Pk
PTFE Unlaminated Membrane Filters, 5.0 micron, 47mm, 50/Pk
Sterlitech Corporation Sterlitech Silver Membrane, 0.2 Micron, 25mm, 50/Pk
Sterlitech Silver Membrane, 0.2 Micron, 25mm, 50/Pk
Sterlitech Corporation Cellulose Acetate Membrane Filters, 0.2 Micron, 300 x 3000mm, 1/Pk
Cellulose Acetate Membrane Filters, 0.2 Micron, 300 x 3000mm, 1/Pk
Sterlitech Corporation Microdyn Nadir Membrane Filters, UP005, PES, UF, 62mm, 5/pk
SKU: 1121512. Manufacturer: Sterlitech. Manufacturer: Microdyn Nadir. Designation: UP005. Polymer: PES. Size: 62 mm. Pack Size: 5
Welker Inc Welker Burst/Rupture Disc for Constant Pressure Cylinder (CPC)
Pressure Rating: 1900 psig ; Tolerance: -7.85% / +11.3% ; Material: ALY600-PTFE ; Torque20 ft. lbs.
Sterlitech Corporation Polycarbonate (PCTE) Membrane Filters, 0.4 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.
WELCH MATERIALS INC Membrane filter, MCE, Dia. 47mm, Pore: 0.45µm, Grid, Sterile, individually packed. 100pcs/pk, 10pk/cs.
Membrane filter, MCE, Dia. 47mm, Pore: 0.45µm, Grid, Sterile, individually packed. 100pcs/pk, 10pk/cs.
Sigma Aldrich Fine Chemicals Biosciences Mf MilliporeR Membrane fil
Biologically inert mixtures of cellulose acetate and cellulose nitrate have made Mf-Millipore membrane filters one of the most widely used membranes in analytical and research applications. Mf-Millipore filters without Triton surfactant contain minimum amounts of wetting agent and have a lower water extractable content than standard Mf-Millipore filters.features Benefits - Versatile filter for biological and environmental monitoring applications - Available in a range of pore sizes colored black or white with or without a gridded surface - Compatible with ethylene oxide gamma irradiation and autoclave sterilization methods
Ace Glass, Inc. 100 micron polyethylene filter for #50 threaded adapters.
100 micron porosity polyethylene filter disc for #50 threaded adapters, for use with chromatograpy column adapters. Six per pack.
Microsolv Technology Corporation Filters, Membrane, 47mm, 0.22um, PVDF. Round, 100/PK.
These high flow, non media migrating, Polyvinylidene Fluoride (PVDF) Advanced Quality (AQ) Brand, Filter Discs can be used with the Mobile Phase Filter Degasser Assembly or any device when membrane filtration is desired.Hydrophilic, they are low protein binding and can be autoclaved at 121⁰C for 30 minutes or EO sterilization without damage to the integrity or performance of the filter. Diameter: 47mm Max Operating Temperature: 80⁰C Bubble Point: 50psi (3.52 kg/cm2) Water Flow Rate: 10ml/min/cm2 @ 10 psi, 27⁰C Thickness: 135um +- 15um Extractables with WFI (water): Within USP Limits Oxidizable Substances: Passes USP Test Pore Size: 0.22 um