Item #: 6728491
MFG: Draeger

Sulfur Dioxide Detection Tubes 0.5/a (0.5 - 25 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, e.g.: Determining and measuring concentration peaks, Measuring personal exposure in the inhalation area, Detecting leaks in pipelines, gas installations etc., and Air analysis in sewers, shafts and confined spaces.

Contains 10 tubes

Standard Measuring Range1 to 25 ppm / 0.5 to 5 ppm
Number of strokes n:10 / 20
Time for Measurementapprox. 3 min. / approx. 6 min.
Standard Deviation± 10 to 15 %
Color Changegray blue ──> white
Temperature15 to 30 °C
Absolute Humiditymax 20 mg H2O / L
Reaction PrincipleSO2 + I2 + 2 H2O ──> H2SO4 + 2HI
Cross SensitivityHydrogen sulfide is also indicated, however,
with differing sensitivity. Nitrogen dioxide
will shorten the reading.