Draeger 6728051 Ethylene 50/a Detector Tubes (10 tests per box)

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 → 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.