Draeger Tube, Hydrogen Sulfide 0.2%/A 0.2-7 Vol. %

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Product Code: CH28101

Draeger Tube - Hydrogen Sulfide 0.2%/A
Order No. CH 28 101

Application Range
Standard Measuring Range 0.2 to 7 vol. %
Number of Strokes n: 1 + 2 desorption strokes in clean air
Time for Measurement: approx. 2 minutes
Standard Deviation: ± 5 to 10%
Color Change: pale blue to black
Ambient Operating Conditions
Temperature: 0 to 60° C ~ 32 to 140° F
Absolute Humidity: max. 40 mg H2O / L
Reaction Principle
H2S + Cu2+  CuS + 2 H+
Cross Sensitivity
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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