Dräger Tube -Benzene 0.25/a8103691
Dräger Tubes For Short Term Measurements: Benzene 0.25/a
Dräger Safety offer a massive range of short-term gas detection tubes for the measurement of various gases. This particular set of tubes is for (Benzene 0.25/a).
The tubes come in a pack of 10 tubes and have a shelf life of 2 years.
|Standard Measuring Range:||0.25 to 2 ppm /2 to 10 ppm|
|Number of Strokes n:||5|
|Time for Measurement:||5|
|Standard Deviation:||± 15 %|
|Colour Change:||light grey to dark grey to black|
Ambient Operating Conditions:
|Temperature:||0 to 40 °C|
|Absolute Humidity||< 40 mg H2O / L|
Benzene + Alu+ ~> dark grey to black reaction product
Up to a concentration of approx. 40 ppm (n=5) and 200 ppm (n=1), toluene, xylene and ethyl benzole are kept in the pre-layer where they cause a brown discolouration. 800 ppm n-Oktane (n=5) and 4000 ppm n-Octane (n=1) do not cause any discoluration in the indicating layer..
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