Trichloroethane Detection Tubes 2/a (2 - 250 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||20 to 250 ppm / 2 to 50 ppm|
|Number of strokes n:||3 / 5|
|Time for Measurement||approx. 1.5 min. / 2.5 min.|
|Standard Deviation||± 10 to 15 %|
|Color Change||pale gray ──> orange|
|Temperature||10 to 40 °C|
|Absolute Humidity||5 to 15 mg H2O / L|
|Reaction Principle||a) Trichloroethylene + Cr^VI ──> Cl2|
b) Cl2 + o-Tolidine ──> orange reaction
|Cross Sensitivity||Other chlorinated hydrocarbons are indicated,|
but with different sensitivities.
Free halogens and hydrogen halides in the TLV
range are also indicated. It is impossible to
measure trichloroethylene in the presence
of these substances.
Petroleum hydrocarbons cause low readings.