Dräger Tubes For Short Term Measurements: Hydrogen Sulfide 0.2%/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 (Hydrogen Sulfide 0.2%/A).
The tubes come in a pack of 10 tubes and have a shelf life of 2 years.
|Standard Measuring Range:||0.2 to 7 vol. %|
|Number of Strokes n:||1 + 2 desorption strokes in clean air|
|Time for Measurement:||approx. 2 min|
|Standard Deviation:||± 5 to 10 %|
|Colour Change:||pale blue to black|
Ambient Operating Conditions:
|Temperature:||0 to 60 °C|
|Absolute Humidity||max. 40 mg H2O / L|
H2S + Cu2+ ~> CuS + 2 H+
In the presence of sulfur dioxide, the indicating layer can change to a yellowish color, but the hydrogen sulfide measurement is not affected. Comparable concentrations of mercaptan will interfere with the reading..
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