Draeger Tube, Sulfur Dioxde 20/A 20-2000ppm, Box of 10
DRAEGER SAFETY INC.
/ Model #CH24201
Details
Draeger Tube - Sulfur Dioxide 20/a
Order No. CH 24 201
| Application Range | |
| Standard Measuring Range | 20 to 200 ppm |
| Number of Strokes n: | 10 |
| Time for Measurement: | approx. 3 minutes |
| Standard Deviation: | ± 10 to 15% |
| Color Change: | brown yellow to white |
| Ambient Operating Conditions | |
| Temperature: | 0 to 40° C ~ 32 to 104° F |
| 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.. | |
| Extenstion 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. | |
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