Ethylene Oxide Detection Tubes (0.1 to 10 ppm)Gastec Detection Tube No. 163LL measures Ethylene Oxide with a Range of 0.1 to 10 ppm.
- Measuring Range: 0.1 to 5 ppm, 5 to 10 ppm
- Number of Pump Strokes: 4, 2
- Correction Factor: 1, 2
- Sampling Time: 2 minutes per pump stroke
- Detecting Limit: 0.05 ppm (4 pump strokes)
- Changes from Yellow to Pale Orange
- Corrections for temperature & humidity: Temperature correction is necessary
- Reaction Principle:
- C2H4O → 2HCHO
- 3HCHO +(NH2OH)3H3PO4 → H3PO4
- H3PO4 + Base → Phosphate
- Relative standard deviation: 15% (for 0.1 to 0.5 ppm), 10% (for 1 to 5 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

- On-site measurements can be performed easily by anybody, anytime and anywhere, in a short time
- Easy-to-check direct reading possible due to calibrated scale directly printed on the tube
- An extensive measuring range can be obtained by adjusting the sampling volume
- In order to assure high precision, each production lot is tested and calibrated independently, Each detector tube has its own quality control number printed on the tube
- Long shelf-life with excellent long-term stability
TUBE NAME |
Ethylene Oxide |
CHEMICAL FORMULA |
C2H4O |
MEASURING RANGE |
0.1-10ppm |
NO. TESTS PER BOX |
10 |
STORAGE |
Store refrigerated at 10°C (50 F) or below. |
TUBE NUMBER |
163LL |