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Dräger Short Term Detection Tubes - Tetrahydrothiophene 1/b (Pack of 5)

Dräger Short Term Detection Tubes - Tetrahydrothiophene 1/b (Pack of 5)

8101341
  • £56.65


Dräger Tubes For Short Term Measurements: Tetrahydrothiophene 1/b

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 (Tetrahydrothiophene 1/b).

The tubes come in a pack of 5 tubes and have a shelf life of 2 years.

Application Range:

Standard Measuring Range: 1 to 10 ppm / 4 to 40 mg/m3
Number of Strokes n: 30
Time for Measurement: in air: approx. 15 min in natural gas: approx. 10 min
Standard Deviation: ± 15 to 20 %
Colour Change: violet to yellow brown

Ambient Operating Conditions:

Temperature: 0 to 35 °C
Absolute Humidity < 30 mg H2O / L

Reaction Principle:

THT + KMnO4 ~> yellow brown reaction product

Cross Sensitivity:

Up to 10 ppm hydrogen sulfide is adsorbed in the pretube, causing a brown discoloration. It is impossible to measure tetrahydrothiophene in the presence of mercaptans. Up to 100 ppm of olefines (e. g. ethene, propene) will cause the color of the indicating layer to become lighter, at higher concentrations the olefins are also indicated. Up to 200 ppm methanol does not interfere

    Extension of the Measuring Range

    1.6 to 16 ppm / 6.4 to 64 mg/m3 n = 20 multiply the reading by 1.6.

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