Ethylene Detection Tubes 50/a (50 - 2500 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 Range||50 to 2,500 ppm|
|Number of Strokes (n)||3|
|Time for Measurement||approx. 6 min.|
|Standard Deviation||±20 to 30 %|
|Colour Change||yellow ─> blue|
|Temperature||15 to 40° C|
|Absolute Humidity||< 30 mg H2O / L|
|Reaction Principle||CH2=CH2 + Pd-Molybdate complex ──>|
blue reaction product
|Cross Sensitivity||Organic compounds with C=C double bonds|
are indicated, but with different sensitivities.
It is impossible to differentiate between them.
In the presence of CO, the indicating layer
is colored blue depending upon the CO
concentration and its exposure time.
H2S is indicated by a black color, but with
considerably lower sensitivity.