Silver Membrane Filters

SKC silver membrane filters are made of 99.97% pure metallic silver in a controlled environment. The many desirable properties of silver membranes make them suitable for a wide range of applications.

Silver Membrane Filters

The orientation of a silver membrane filter is important. Each side of the silver membrane filter is different. One side appears shinier than the other. Use the shinier side for scanning electron microscopy (SEM) and the duller of the two sides for all other filtration applications and analytical work, including X-ray diffraction. A smooth surface provides for superior collection of particulates with a typical aerosol retention of 99.99% (0.3 µm DOP at 3 L/min through 10 cm2)

  • Chemically inert and resistant to high temperatures, up to 500°C (1022°F)
    • Sample aggressive contaminants
    • Autoclave repeatedly without loss of performance
  • Uniform porosity and thickness
  • Ideal for x-ray diffraction and other analyses
    • NIOSH methods for x-ray diffraction analysis of crystalline silica, lead sulphide, boron carbide, and chrysolite asbestos
    • Organic materials by a variety of analytical methods
  • Smooth surface for high surface capture of particles and easy observation
  • Environmentally friendly — recyclable
    • Can be cleaned and reused

Silver Membrane Filter Applications

  • Collection and analysis of coke oven emissions
  • Collection and analysis of polyaromatic hydrocarbons
  • Analysis of airborne silica
  • Collection and analysis of airborne asbestos fibres by X-ray diffraction
  • Collection and analysis of carbon and carbon black
  • Collection and analysis of fly ash directly from smoke stacks
  • Analysis of biological specimens by scanning electron microscopy, especially when being collected from suspension
  • Dimensional preservation of specimens during freeze-drying
  • Filtration of alcoholic beverages
  • High temperature processing of viscous materials
  • Performing mild chemical digestion directly at filter surface
  • High temperature stack sampling
  • High temperature sterilisation procedures
  • Filtration involving organic solvents

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