Sulfuric Fluoride Detection Tubes 1/a (1 -5 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
Sulfuric Fluoride Detection Tubes 1/a (1 -5 ppm)
| Standard Measuring Range: |
1 to 5 ppm |
| Number of strokes n: |
6 |
| Time for Measurement: |
approx. 3 min |
| Standard Deviation: |
± 30 % |
| Color Change: |
light blue ??> light pink |
| Temperature: |
0 to 40 °C |
| Absolute Humidity: |
15 to 90 % r.h.
At 0 to 10°C, concentrations of sulfuryl fluoride are displayed with approx. half sensitivity.
At 30 to 40°C and air humidity < 30% r.h. the displays can only be recognized as of > 2 ppm.
At 30 to 40°C and air humidity > 75 % r.h., concentrations of sulfuryl fluoride are displayed with approx. half sensitivity. |
| Reaction Principle: |
a) pyrolysis sulfuryl fluoride ??> HF
b) HF + zircon / quinalizarin ??> pink reaction product (HF destroys the quinalizarin/zircon complex by complexation of the zircon) |
| Cross Sensitivity: |
Fluorinated hydrocarbons are also displayed with different sensitivities. Ammonia and other basic gases could, depending on the concentrations, either shorten or prevent the color change. The following chemicals have no influence on the display of 3 ppm sulfuryl fluoride: 2 ppm formaldehyde, 5 ppm methyl bromide and 1 ppm phosphine.
When the oxygen concentration decreases, the sensitivity decreases. For example, the 3 ppm display at 18 % oxygen is very
weak. |
| Additional Information: |
Do not use in areas subject to explosion hazards. Tubes get hot. During and shortly after measurement, do not touch the first tube near the black pyrolysis layer. |
Sulfuric Fluoride Detection Tubes 1/a (1 -5 ppm)
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