Sulfur Dioxide/Nitrogen Dioxide Passive Sampler: UMEx 200
The SKC UMEx 200 Passive Sampler effectively collects sulfur dioxide (SO2) and/or nitrogen dioxide (NO2). The sample medium (tape impregnated 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.
Sampling rate | SO2: 15.1 ml/min with a relative standard deviation of 16.7% NO2: 12.83 ml/min with a relative standard deviation of 13.4% |
Validated Concentration Range for SO2 and/or NO2 | 0.4 to 8 ppm |
Analysis Method for SO2 and/or NO2 | Solvent extraction and ion chromatography with conductivity detection |
Lower Detection Limits for SO2 and/or NO2 | 15 minutes: 2 ppm 8 hours: 0.1 ppm |
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 < 39.2 F (4 C) |
Accuracy for SO2 and/or NO2 | ± 30% |
Temperature Effects | No effect on sampling rate between 20 and 25 C |
Humidity Effects | No effect from 20 to 80% relative humidity |
Wind Effects | No effect from 0.05 to 1.0 m/s |
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 |