Sulfur Dioxide Detection Tubes 20/a (20 - 2000 ppm)
For short-term measurements more than 160 Draeger-Tubes are available to measure the spot concentrations of specific gases. Measurement usually takes between 4 seconds and 15 minutes. The tubes are used either manually with the Draeger-Tube Accuro Pump or automatically with the Draeger X-act 5000.
A wide range of different gases and vapours can be detected and measured, such as:
- Determining and measuring concentration peaks
- Measuring personal exposure in the inhalation area
- Detecting leaks in pipelines, gas installations etc.
- Air analysis in sewers, shafts and confined spaces
Sulfur Dioxide Detection Tubes 20/a (20 - 2000 ppm)
| Standard Measuring Range: |
20 to 200 ppm |
| Number of strokes n: |
10 |
| Time for Measurement: |
approx. 3 min |
| Standard Deviation: |
± 10 to 15 % |
| Color Change: |
brown yellow ??> white |
| Temperature: |
0 to 40 °C |
| Absolute Humidity: |
< 30 mg H2O / L |
| Reaction Principle: |
SO2 + I2 + 2 H2O ??> H2SO4 + 2 HI |
| Cross Sensitivity: |
Hydrogen sulfide is indicated, with the same sensitivity. It is impossible to measure sulfur dioxide in the presence of hydrogen sulfide. Nitrogen dioxide will shorten the reading. |
| Extension of the Measuring Range |
Using n = 1+3 desorption strokes, multiply the reading by 10; the range of measurement is 200 - 2,000 ppm. The desorption strokes are to be taken in clean air (i.e. free of sulfur dioxide) immediately following the single pump stroke. |
Sulfur Dioxide Detection Tubes 20/a (20 - 2000 ppm)
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