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Dräger Short Term Detection Tubes - Benzene 5/a (Pack of 10)

Dräger Short Term Detection Tubes - Benzene 5/a (Pack of 10)

  • £56.42

Dräger Tubes For Short Term Measurements: Benzene 5/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 5/a).

The tubes come in a pack of 10 tubes and have a shelf life of 2 years.

Application Range:

Standard Measuring Range: 5 to 40 ppm
Number of Strokes n: 15 to 2
Time for Measurement: max. 3 min
Standard Deviation: ± 30 %
Colour Change: white to red brown

Ambient Operating Conditions:

Temperature: 0 to 40 °C
Absolute Humidity max. 50 mg H2O / L

Reaction Principle:

2 C6H6 + HCHO ~> C6H5-CH2-C6H5 + H2O C6H5-CH2-C6H5 + H2SO4 ~> p-quinoid compound

Cross Sensitivity:

Other aromatics (toluene, xylene) are retained in the pre-layer causing a reddish brown discoloration. If the toluene or xylene concentrations are too high the entire pre-layer up to the indicating layer is discolored making a benzene measurement impossible. Petroleum hydrocarbons, alcohols and esters do not affect the indication..

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