UMEx 200 Passive Sampler for SO2/NO2
- 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
Description
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.
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
- Jewelry manufacturing
- Nitric acid production
- Nitrogen fertilizer production
- Nitro-explosive production
- Pickling plants
SPECIFICATIONS
| Sampling Rate | SO2: 15.2 ml/min with a RSD (Relative Standard Deviation) of 16.5% |
| NO2: 17.3 ml/min with a RSD of 11.4% | |
| Validation Range | SO2: 0.4 to 8 ppm |
| NO2 0.051 to 8.5 ppm | |
| Lower Detection Limits | SO2: |
| 15 minutes: 1.8 ppm | |
| 8 hrs: 52 ppb | |
| 24 hrs: 17.4 ppb | |
| NO2: | |
| 15 minutes: 0.2 ppm | |
| 8 hours: 0.3 ppb | |
| 24 hours: 2 ppb | |
| Shelf-life | 18 months from date of manufacture at ambient temperature |
| Analysis | Solvent extraction and ion chromatography with conductivity detection |
| Accuracy | SO2: ± 30% |
| NO2: ± 27% | |
| Storage | Before use: ambient temperature |
| After use: Analyze within 3 weeks. Can be stored at ambient temperature or at <4°C (39.2°F) | |
| Temperature Effects | SO2: No effect on sampling rate between 20 and 25°C |
| NO2: No effect on sampling rate between 22 and 40°C | |
| Humidity Effects | No effect from 20 to 80% relative humidity (RH) |
| Wind Effects | No effect from 5 to 100 cm/s |
| Interferences | None identified |
| Dimensions | 8.6 x 2.8 x 0.89 cm (3.4 x 1.1 x 0.35 inches) |
| Weight | 10.9 g (0.38 oz) |
UMEx 200 SAMPLERS
| Description | Pack Size | Part Number |
| UMEx 200 Passive Sampler for Sulphur Dioxide and/or Nitrogen Dioxide, individually packaged in aluminised pouch. | 10 | 500-200 |
| 25 | 500-200A | |
| UMEx 200 samplers are designed for single use only. DO NOT reuse UMEx 200 samplers. | ||
| Limited shelf-life. | ||
| Treated Tape, for QC (quality control) purposes only | 25 | P20098 |
ACCESSORIES
| Description | Pack Size | Part Number |
| Stand for Indoor Sampling | Each | 690-302 |
| Shelter for Outdoor Sampling | Each | 690-303 |
DOCUMENTS
