Coated (Treated) Filters

SKC offers coated filters to meet a variety of OSHA, NIOSH, ASTM, and international agency methods.

Coated filters make sampling reactive compounds fast and easy. They are a convenient alternative to wet chemistry methods using impingers. Simply unplug the lightweight cassette, insert it into an SKC Filter Cassette Holder, clip holder to a worker’s collar, and attach to a personal sampling pump. Use coated filters to collect compounds that exist as an aerosol or mist or for some higher boiling vapours. Flow rates are typically greater than 1 L/min and sampling times range from 15 minutes to one hour. Most coated filter samples are extracted in solvents and analysed by gas or liquid chromatography.

Coated Filters
  • Ready to use
  • Time-saving
  • Convenient alternative to impinger wet chemistry methods
  • Economical
  • No assembly required - preloaded into cassettes with end plugs and shrink bands
  • Meet agency method specifications
  • No cumbersome collection liquids or glass
  • Easy personal sampling
  • Small package size for short shelf-life product

The methods listed are the most widely used. Note also that coated filters have a limited shelf life and are supplied in 37 mm cassettes unless otherwise noted.

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