Draeger
Hydrogen Sulfide 2/a, 20 - 200 PPM / 2 - 20 PPM, (6728821)
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Hydrogen Sulfide 2/a, 20 - 200 PPM / 2 - 20 PPM, Part # 6728821, 10 Tests
Application Range
Standard Measuring Range: 20 to 200 / 2 to 20 ppm
Number of Strokes n: 1 / 10
Time for Measurement: approx. 20 s / approx. 3.5 min
Standard Deviation: ± 5 to 10 %
Color Change: white pale brown
Ambient Operating Conditions
Temperature: 0 to 40 °C
Absolute Humidity: 3 to 30 mg H2O / L
Reaction Principle
H2S + Hg2+ HgS + 2H+
Cross Sensitivity
No interference by:
200 ppm sulfur dioxide
100 ppm hydrochloric acid
100 ppm ethyl mercaptan