Draeger 6728961 Ethylene Oxide 1/a Detector Tubes (5 tests per box)

Application Range:

• Standard Measuring Range: 1 to 15 ppm
• Number of Strokes n: 20
• Time for Measurement: Approx. 8 min
• Standard Deviation: ± 20 to 30 %
• Color Change: White → Pink

Ambient Operating Conditions:

• Temperature: 10 to 30 °C
• Absolute Humidity: 3 to 15 mg H2O / L

Reaction Principle:

• a) Ethylene Oxide → HCHO
  b) HCHO + C6H4(CH3)2 + H2SO4 → quinoid reaction products

Cross Sensitivity:

• Styrene, vinyl acetate and acetaldehyde are indicated with a yellowish brown discoloration.
• It is impossible to measure ethylene oxide in the presence of ethylene glycol and formaldehyde because they produce the same discoloration.

Additional Information:

• The reagent ampoule must be broken before carrying out the measurement.