UMEx 200 Passive Sampler for SO2/NO2

The lightweight UMEx 200 clips in the breathing zone for easy personal sampling. The sample medium (tape treated with triethanolamine [TEA]) and a "blank/correction" section of tape are contained in one sampler saving time and money. Samplers are provided in individual aluminiumised pouches that can be used to transport the sampler to a laboratory. The label on the outside of each pouch contains the shelf-life date for easy inventory management.

UMEx 200 SO2/NO2 Passive Sampler
  • Same chemistry as active OSHA Method ID-182
  • Ready to use
  • Accurate, reliable personal sampling
  • Lightweight sampler clips easily in the breathing zone
  • Economical , low cost, single use sampler
  • Safe — no glass or chemical liquids in the sampler
  • No pump or training required
  • Sample medium and blank/correction in one unit
  • Accurately measures personal workplace exposure to sulphur dioxide and/or nitrogen dioxide from 15 minutes to 8 hours (Not suitable for new STEL of 0.25 ppm)
  • 3-week sample storage at ambient temperature

SKC Research has validated the UMEx 200 Passive Sampler for 24 hour ambient air sampling of sulphur dioxide and nitrogen dioxide to complement federal EPA reference methods. The validated concentration range for sulphur dioxide is 0.4 to 8 ppm (15 minutes to 24 hours); nitrogen dioxide is 0.05 to 8 ppm (15 minutes to 24 hours).

Sulphur dioxide is used in:

  • Intermediate in the manufacture of sulphuric acid
  • Bleaching agent
  • Disinfectant
  • Fumigant
  • Solvent
  • Refrigerant
  • Food preservative
  • Reagent in the manufacture of magnesium, sodium sulphite and other chemicals

Nitrogen dioxide is used in:

  • Agricultural silos
  • Arc or gas welding, especially in confined space
  • Electroplating plants
  • Food and textile bleaching
  • Jewelery manufacturing
  • Nitric acid production
  • Nitrogen fertiliser production
  • Nitro-explosive production
  • Pickling plants

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