Sulfuric Fluoride Detection Tubes 1/a (1 -5 ppm)
For short-term measurements more than 160 Draeger Tubes are available to measure the so called spot concentrations of specific gases.
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
|Standard Measuring Range:
||1 to 5 ppm
|Number of strokes n:
|Time for Measurement:
||approx. 3 min
||± 30 %
||light blue ──> light pink
||0 to 40 °C
||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.
||a) pyrolysis sulfuryl fluoride ──> HF
b) HF + zircon / quinalizarin ──> pink reaction product (HF destroys the quinalizarin/zircon complex by complexation of the zircon)
||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
||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.