Ethylene Oxide Detection Tubes (0.4 to 350 ppm)

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Item #: 163L
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$86.51 Was: $96.73
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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:

Substance Interference Changes color by itself to
Aldehydes + Reddish brown
Ketones + Reddish brown

Other substance measurable with this detector tube:

Substance: Correction Factor: No. of Pump Strokes: Measuring Range:
Epichlorohydrin 1.2 2 1.2 to 120 ppm
Propylene oxide 1.0 1 1 to 100 ppm