Ethylene Detection Tubes (0.2 to 50 ppm)
Gastec Detection Tube No. 172L measures Ethylene with a Range of 0.2 to 100 ppm.
- Measuring Range: 0.2 to 50 ppm, 50 to 100 ppm
- Number of Pump Strokes: 4, 2
- Correction Factor: 1, 2
- Sampling time: 2 minutes per stroke
- Detecting Limit: 0.05 ppm (4 pump strokes)
- Changes from Pale Yellow to Blue
- Reaction Principle: CH2:CH2 + (NH4)2MoO4 + PbSO4 → Molybdenum blue
- Relative Standard Deviation: 10% (for 0.2 to 10 ppm), 5% (for 10 to 50 ppm)
- 3 Year Shelf Life
- Store the tubes at cool and dark place.
- Comes in a Box of 10
Possible coexisting substances and their interferences:
| Substance |
Concentration |
Inteference |
Changes color by itself to |
| Butane, Carbon monoxide |
|
+ |
Blue (whole layer) |
| Hydrogen, Pentane |
|
+ |
Blue (whole layer) |
| Butylene, Propylene |
≧ 1/4 |
+ |
Blue |
| Ammonia, Butadiene |
|
+ |
White |
| Hydrogen cyanide |
|
+ |
White |
| Hydrogen chloride |
|
+ |
Pink |
| Hydrogen Sulfide |
|
+ |
Black |
Ethylene Detection Tubes (0.2 to 50 ppm)
There are no reviews yet.