Application Range
Standard Measuring Range: 50 to 2,500 ppm
Number of Strokes n: 3
Time for Measurement: approx. 6min
Standard Deviation: ± 20to 30 %
Color Change: yellow -› blue
Ambient Operating Conditions
Temperature: 15 to 40°C
Absolute Humidity: < 30 mg H2O / L
Reaction Principle
CH2=CH2 + Pd-Molybdate complex -> blue reaction product
Cross Sensitivity
Organic compounds with C=C double bonds are indicated, but with different sensitivities. It is impossible to differentiate between them. In the presence of CO, the indicating layer is colored
blue depending upon the CO concentration and its exposure time. H2S is indicated by a black color, but with considerably lower sensitivity.