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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)

    • £61.05

    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..

    For more information on Dräger-Tubes click the image below.

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