Hydrogen 0.2 %/a, 0.2 - 2.0 Vol.-%, (8101511)
Hydrogen 0.2 %/a, 0.2 - 2.0 Vol.-%, Part # 8101511, 10 Tests
Application Range
Standard Measuring Range: 0.2 to 2.0 vol. %
Number of Strokes n: 1
Time for Measurement: approx. 1 min
Standard Deviation: ± 15 to 20 %
Color Change: green yellow turquoise blue
Ambient Operating Conditions
Temperature: 20 to 40 °C
Absolute Humidity: max. 50 mg H2O / L
Reaction Principle
a) H2 + 1 /2 O2 H20
b) H2O + indicator turquoise blue reaction product
Cross Sensitivity
No interference by:
0.1 vol. % acetylene
6 vol. % alcohol
6 vol. % ammonia
0.5 vol. % carbon monoxide
Additional Information
The indicating layer is heated up by hydrogen concentrations of more than 10 vol. %. The air sample must not contain additional flammable substances whose ignition temperature is below 250 °C/ 482 °F as this will cause an explosion risk.