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    PTFE PM2.5 Air Monitoring Membrane Filter, 2.0um, 46.2 mm, Support Ring, Seq NumbeRed, 50pk

    Thumbnail Filmstrip of PTFE PM2.5 Air Monitoring Membrane Filter, 2.0um, 46.2 mm, Support Ring, Seq NumbeRed, 50pk Images

      Purchase PTFE PM2.5 Air Monitoring Membrane Filter, 2.0um, 46.2 mm, Support Ring, Seq NumbeRed, 50pk

      Whatman
      PTFE PM2.5 Air Monitoring Membrane Filter, 2.0um, 46.2 mm, Support Ring, Seq NumbeRed, 50pk SKU: 7592-104

      $652.90
      Ships in 4 business days
       

      PM 2.5 Air Monitoring Membrane Filters

      Whatman PM 2.5 Ambient Air Monitoring Filters are composed of 2.0um PTFE membranes with a 46.2mm diameter, combined with a Polypropylene support ring ideal for robotic air sampling. Their thermally-stable design and natural chemical resistance make them suitable to withstand environmental pollutants that may contain an array of contaminants, yet still deliver clear and precise results. The Polypropylene support ring assures a flat membrane that does not curl, and makes the Filter very user-friendly. These Filters feature a low tare mass for accurate gravimetric determinations. They meet the requirements for EPA FRM PM 2.5 under 40 CFR Part 50, Appendix L and come sequentially-numbered.

      40 CFR Part 50, Appendix L

      40 CFR Part 50, Appendix L calls for a Filter that meets listed parameters in section 6.0. The below table reflects the criteria that each lot of Tisch Scientific SF18040 PM2.5 Ambient Air Monitoring Filters are tested against for quality assurance, next to this criteria is the referenced section number from 40 CFR Part 50, Appendix L that calls for these parameters.

      Criteria7592-104 CharacteristicRange/Test Method40 CFR Part 50, Appendix L Section
      Filter Media PTFE TeflonN/A6.2
      Filter Thickness40 µm ±106.5
      Filter Diameter46.2 mm±0.256.1
      Filter Pore Size2 µmASTM F 316-946.4
      Total Support Ring Thickness0.38 mm±0.046.3
      Support Ring – Width3.68 mm±0.00, -0.516.3
      Particle Retention (0.3 µm) 99.7%ASTM D 2986-95a6.8
      Pressure Drop (0.3 µm) @ 16.67 liters/min. 30 cm H2OASTM D 2986-95a6.6
      Alkalinity 25 u eq/g of FilterEPA/600-R-94/038b,Section 2.126.10
      Weight Loss<20 ugAbove6.9
      Loose Particles<20 ugAbove6.9.1
      Moisture Pickup<10 ugAbove6.7
      Diameter
      46.2mm
      Material
      Polytetrafluoroethylene (PTFE)
      Pack Count
      50
      Pore Size (µm)
      2
      Sterility
      Nonsterile
      Wetability
      Hydrophobic