Ethylene 50/a, 50 - 2,500 PPM, Part # 6728051, 10 Tests 

Application Range

Standard Measuring Range: 50 to 2,500 ppm

Number of Strokes n: 3

Time for Measurement: approx. 6 min

Standard Deviation: ± 20 to 30 %

Color Change: yellow š blue

Ambient Operating Conditions

Temperature: 15 to 40 °C

Absolute Humidity: < 30 mg H2O / L

Reaction Principle

CH2=CH2 + Pd-Molybdate complex š 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.