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UMEX 200 Passive Sampler
For Sulfur Dioxide and Nitrogen Dioxide
- Validation range extended below new TLV-TWA for NO2
- Same chemistry as active OSHA Method ID-182
- Accurate, reliable personal
sampling
- Ready to use
- Lightweight sampler clips easily in the breathing zone
- Economical
- No pump or training required
- Low-cost single-use sampler
- Sample medium and blank/correction in one unit
- Safe — no glass or chemical liquids in the sampler
- Accurately measures personal workplace exposure to
sulfur dioxide and/or nitrogen dioxide from 15 minutes to 8 hours
- 3-week sample storage at ambient temperature
UMEX 200 Product Data Bulletin (PDF)
UMEX 200 for Sulfur Dioxide Operating Instructions (PDF)
UMEX 200 for Nitrogen Dioxide Operating Instructions (PDF)
List
of Laboratories for Analyzing 500-200 Series UMEX Passive Samplers
The single-use SKC UMEX 200 Passive Sampler effectively collects sulfur dioxide (SO2) at a sampling rate of 15.1 ml/min and/or nitrogen dioxide (NO2) at 17.3 ml/min. The sample medium (tape treated with triethanolamine [TEA]) and a "blank/correction" section of tape are contained in one sampler saving time and money. The lightweight UMEX 200 clips in the breathing zone for easy personal sampling. Samplers are provided in individual aluminized 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.
Using the UMEX 200 Passive SamplerSampling with the UMEX 200 Passive Sampler for sulfur dioxide and/or nitrogen dioxide is easy and requires no pump or training. Simply remove the sampler from the pouch, record sampling information, and slide the cover to the "on" or sampling position. Clip the sampler on a worker for personal sampling up to eight hours. When sampling is complete, slide the cover to the "off" position, place the sampler back in the pouch immediately, and seal. Send the sampler to an accredited laboratory for analysis by solvent extraction ion chromatography (IC) with conductivity detection.
Performance Profile
| Sampling Rate | SO2: 15.1 ml/min with a relative standard deviation of 16.7% NO2: 17.3 ml/min with a relative standard deviation of 11.4% |
| SO2: 0.4 to 8 ppm NO2: 0.05 to 8 ppm |
|
| Analysis Method | Solvent extraction and ion chromatography with conductivity detection |
| Lower Detection Limits | SO2: 15 minutes: 170 ppb |
| Shelf-life | 18 months from date of manufacture at ambient temperature |
| Storage | Before use: Ambient temperature
After use: Analyze within 3 weeks. Can be stored at ambient temperature or at |
| Accuracy |
SO2: ± 30% NO2: ± 27% |
| Temperature Effects | SO2: No effect on sampling rate from 20 to 25 C NO2: No effect on sampling rate from 22 to 40 C |
| Humidity Effects | No effect from 20 to 80% relative humidity |
| Wind Effects | No effect from 5 to 100 cm/sec |
| Interferences | None identified |
| Dimensions | 3.4 x 1.1 x 0.35 in (8.6 x 2.8 x 0.89 cm) |
| Weight | 0.38 oz (10.9 gm) |
| Slide Cover | Yellow |
Potential Sources of Workplace Exposure to Sulfur Dioxide and Nitrogen Dioxide
Sulfur dioxide is used in industry as a(n):- Intermediate in sulfuric acid manufacture
- Bleaching agent
- Disinfectant
- Fumigant
- Solvent
- Refrigerant
- Food preservative
- Reagent in the manufacture of magnesium, sodium sulfite, and other chemicals
- Copper smelting
- Processing or burning coal or fuel oil
- Manufacturing paper and fertilizers
Nitrogen Dioxide is used in:
- Agricultural silos
- Arc or gas welding, especially in confined space
- Electroplating plants
- Food and textile bleaching
- Jewelry manufacturing
- Nitric acid production
- Nitrogen fertilizer production
- Nitro-explosive production
- Pickling plants
Source: OSHA Method ID-182
Other UMEX Passive Samplers Available
The same convenient and economical
UMEX design is also available for sampling formaldehyde/other
aldehydes
(UMEX 100) and amines (UMEX 400).
Ordering Information
| Description | Cat. No. |
| UMEX 200 Passive
Sampler for Sulfur Dioxide and/or Nitrogen Dioxide, individually
packaged in aluminized pouch, pk/10 |
UMEX 200 Product Data Bulletin (PDF)
UMEX 200 for Sulfur Dioxide Operating Instructions (PDF)
UMEX 200 for Nitrogen Dioxide Operating Instructions (PDF)
List of Laboratories for Analyzing 500-200 Series UMEX Passive Samplers
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