Ethylene Oxide Detection Tubes (0.4 to 350 ppm)

Ethylene Oxide Detection Tubes (0.4 to 350 ppm)

Gastec Detection Tube No. 163L measures Ethylene Oxide with a Range of 0.4 to 350 ppm.

• Measuring Range:
  • 0.4 to 1 ppm
  • 1 to 100 ppm
  • 100 to 350 ppm
• Number of Pump Strokes: 4, 2, 1
• Correction Factors: 0.4, 1, 3.5
• Sampling Time: 3 minutes per pump stroke
• Detecting Limit: 0.1 ppm (4 pump strokes)
• Changes from Yellow to Reddish Brown
• Corrections for temperature & humidity: Temperature correction is necessary
• Reaction Principle:
  • C₂H₄O → 2HCHO
  • 3HCHO + (NH₂OH)₃H₃PO₄ → H₃PO₄
  • H₃PO₄ + Base → Phosphate
• Relative Standard Deviation: 15% (for 1 to 20 ppm), 10% (for 20 to 100 ppm)
• 1 Year Shelf Life (in the refrigerator)
• Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.
• Comes in a Box of 5 pre tubes and 5 detector tubes

Possible coexisting substances and their interference:

Other substance measurable with this detector tube: