Trichloroethane Detection Tubes 2/a (2 - 250 ppm)

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Item #: 6728541
MFG: Draeger
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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 Range20 to 250 ppm / 2 to 50 ppm
Number of strokes n:3 / 5
Time for Measurementapprox. 1.5 min. / 2.5 min.
Standard Deviation± 10 to 15 %
Color Changepale gray ──> orange
Temperature10 to 40 °C
Absolute Humidity5 to 15 mg H2O / L
Reaction Principlea) Trichloroethylene + Cr^VI ──> Cl2
b) Cl2 + o-Tolidine ──> orange reaction
Cross SensitivityOther 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.