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

- 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 |
0.4-350ppm |
NO. TESTS PER BOX |
10 |
STORAGE |
Store refrigerated at 10°C (50 F) or below. |
TUBE NUMBER |
163L |