Item #: CH21001
MFG: Draeger

Ozone Detection Tubes 10/a (10 - 300 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 Range20 to 300 ppm
Number of strokes n:1
Time for Measurementapprox. 20 sec.
Standard Deviation± 10 to 15 %
Color Changegreenish blue ──>  yellow
Temperature0 to 40 °C
Absolute Humidity2 to 30 mg H2O / L
Reaction PrincipleO3 + Indigo ──> Isatine
Cross SensitivityNo interference by: 
1 ppm sulfur dioxide
1 ppm chlorine
1 ppm nitrogen dioxide

Higher concentrations of chlorine and 
nitrogen dioxide discolor the indicating
layer a diffuse yellowish gray.