Dräger Tube -Sulphur Dioxide 1/a

DrägerSKU: CH31701

Sale price£68.09


Dräger Tubes For Short Term Measurements: Sulfur Dioxide 1/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 (Sulfur Dioxide 1/a).

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

Application Range:

Use in Simultaneous CO2

Standard Measuring Range: 0.5 to 2 ppm
Test Volume: 2L
Flow Rate: approx. 0.2 L / min
Time for Measurement: in the Aerotest CO2: 10 min in the Multi Test (for CO2): 12 min
Standard Deviation: ± 30 %
Colour Change: greyblue to white

Ambient Operating Conditions:

Temperature: 15 to 25 °C
Absolute Humidity: 3 to 20 mg H2O / L
Pressure: The tube may only be used for depressurized compressed air

Reaction Principle:

SO2 + I2 + 2 H2O ~ Starch ~> H2SO4 + 2 HI

Cross Sensitivity:

Hydrogen sulfide in the TLV range is retained in the pre-layer and thus does not affect the indication. Nitrogen dioxide will shorten the reading.


reading on the (n=10) scale x 0.2 = ppm SO2 (applies only for scale range 2.5 to 10 ppm).

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