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Membrane Disc Filters

Whether your lab application needs are aerosol sampling tests (i.e., diesel exhaust), stack emission testing, or acidic dry deposition (acid rain) measurements, our Filter Membranes Disc Filters consist of only the highest grade and efficiency levels that your testing and studies demand. Our product descriptions also include data sheets you may download for more detailed information that will help you make an informed decision on the best membrane disc filter for you.

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  1. Pall 7221 Emfab Filter Membrane 47mm Pk100

    Click here to download data sheet

    Pallflex Emfab filters are made of borosilicate glass microfibers that are reinforced with woven glass cloth and bonded with PTFE.
    • Glass fiber
    • Reinforced with cloth and PTFE
    • Low air resistance

    These filters feature low air resistance which makes them ideal for use in critical aerosol sampling tests, such as diesel exhaust. They can also withstand folding for weighing and transport.

    $210.00
  2. MF Matched-Weight Membrane Pairs, 0.8 µm, mixed cellulose esters with thick pad, 37 mm, white

    This is a 37 mm Mixed Cellulose Esters Cellulose Pad membrane filter with a 0.8 µm pore size. With biologically inert mixtures of cellulose acetate & cellulose nitrate, MF-Millipore membranes are widely used in analytical & research applications.

    $450.00
  3. Pall Membrane Filter GLA-5000 5um/37mm, Pack of 100

    Membrane Disc Filter GLA-5000 5um pore size. 37mm diameter. PVC membrane resists acids and alkalis. Low ash content moisture pick-up and tare weight for gravimetric analysis of airborne particulates. Meets NIOSH and OSHA requirements. 100/pk.
    $205.87
  4. Pall Teflon Membrane Disc Filter, 2 um Pore Size, 37 mm Diameter

    Teflo Air Sampling PTFE Membrane 2um pore size. 37mm diameter. PMP support ring for PM10 and PM2.5 dichotomous and other air sampling techniques. 25um thickness. 53Lpm/cm2 at 0.7bar air flow rate. 99.99% typical rosol retention following ASTM D2986-71 0.3um (DOP) at 32Lpm/100cm2 filter media.
    $283.00
  5. Pall PTFE Membrane W/Ring 2.0um Pk-50 41mm

    Teflo Air Sampling PTFE Membrane 2um pore size. 41mm diameter. PMP support ring for PM10 and PM2.5 dichotomous and other air sampling techniques. 25um thickness. 53Lpm/cm2 at 0.7bar air flow rate. 99.99% typical rosol retention following ASTM D2986-71 0.3um (DOP) at 32Lpm/100cm2 filter media.
    $400.00
  6. Whatman™ 10401164 Protran™ BA85 Nitrocellulose Blotting Membrane Filter Circle, Diameter 8.7cm, Pore Size: 0.45µm (Pack of 50)

    • Blotting membrane filter material: Nitrocellulose, Diameter: 8.7cm
    • 0.45µm pore size of these membrane filters are suitable for larger molecular weight samples
    • Compatible with many detection methods: Isotopic, Chemiluminescent, Colorimetric & Fluorescent
    • Protran nitrocellulose membranes donot require a methanol pre-wetting step
    • High binding capacity and very low background for superior signal-to-noise ratios without stringent washing conditions
    • Pack of 50
    • Manufacturer: Whatman/GE Healthcare
    • Manufacturer Part No: 10401164
    $160.00
  7. Whatman™ 10402525 Protran™ BA85 Nitrocellulose Blotting Membrane Filter Circle, Diameter 13.2cm, Pore Size: 0.45µm (Pack of 50)

    • Blotting membrane filter material: Nitrocellulose, Diameter: 13.2cm
    • 0.45µm pore size of these membrane filters are suitable for larger molecular weight samples
    • Compatible with many detection methods: Isotopic, Chemiluminescent, Colorimetric & Fluorescent
    • Protran nitrocellulose membranes donot require a methanol pre-wetting step
    • High binding capacity and very low background for superior signal-to-noise ratios without stringent washing conditions
    • Pack of 50
    • Manufacturer: Whatman/GE Healthcare
    • Manufacturer Part No: 10402525
    $320.00
  8. Whatman™ 10402548 Protran™ BA85 Nitrocellulose Blotting Membrane Filter Circle, Diameter 13.7cm, Pore Size: 0.45µm (Pack of 50)

    • Blotting membrane filter material: Nitrocellulose, Diameter: 13.7cm
    • 0.45µm pore size of these membrane filters are suitable for larger molecular weight samples
    • Compatible with many detection methods: Isotopic, Chemiluminescent, Colorimetric & Fluorescent
    • Protran nitrocellulose membranes donot require a methanol pre-wetting step
    • High binding capacity and very low background for superior signal-to-noise ratios without stringent washing conditions
    • Pack of 50
    • Manufacturer: Whatman/GE Healthcare
    • Manufacturer Part No: 10402548
    $320.00
  9. Whatman™ 47mm Nuclepore™ Polycarbonate Track-Etched Membranes

    Manufactured from high-quality polycarbonate film and track-etched for high pore size precision. Whatman™ 47mm Nuclepore™ Polycarbonate Hydrophilic Membranes combine high flow rates and chemical and thermal resistance with sharply defined pores, making them suitable for microscopy, cytology, parasitology, and certain air and oceanography analyses.

    $122.00
  10. Whatman™ 1441-047 Ashless Grade 41 Quantitative Filter Paper, Diameter: 4.7cm, Pore Size: 20µm (Pack of 100)

    • Diameter: 4.7cm
    • Retention: 20µm
    • Fastest ashless filter paper
    • Recommended for analytical procedures involving coarse particles or gelatinous precipitates (iron or aluminum hydroxides)
    • Used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates
    • Pack of 100
    • Manufacturer: Whatman/GE Healthcare
    • Manufacturer Part No: 1441-047
    $20.00
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