Tetrachloroethylene Detection Tubes (1 to 75 ppm)
Gastec Detection Tube No. 133L measures Tetrachloroethylene with a Range of 1 to 2 ppm.
- Measuring Range:
- 1 to 2 ppm
- 2 to 25 ppm
- 25 to 75 ppm
- Number of Pump Strokes: 2, 1, 1/2
- Correction Factor: 1/2, 1, 3
- Sampling Time: 45 seconds per pump stroke
- Detecting Limit: 0.4 ppm (2 pump strokes)
- Changes from Yellow to Pink
- Corrections for temperature & humidity: Temperature correction is necessary
- Reaction Principle:
- Cl2C:CCl2 + PbO2 + H2SO4 → HCl
- HCl + Base → Chloride
- Relative Standard Deviation: 10% (for 2 to 5 ppm), 5% (for 5 to 25 ppm)
- 2 Year Shelf Life (in the refrigerator)
- Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.
Possible coexisting substances and their interferences:
| Substance |
Concentration |
Interference |
Changes color by itself to |
| Bromine, Chlorine |
|
+ |
Pink |
| Hydrogen chloride |
|
+ |
Pink |
| Unsaturated halogenated hydrocarbons |
|
+ |
Pink |
| Aromatic hydrocarbons |
≧ 100 ppm |
- |
No |
| Acetone |
≦ 200 ppm |
No |
No |
| Nitric oxide |
|
No |
No |
| Nitrogen dioxide |
|
No |
No |
Other substance measurable with this detector tube:
| Substance: |
Correction Factor: |
No of Pump Strokes: |
Measuring Range: |
| Pentachloroethane |
20 |
1 |
40 to 500 ppm |
Tetrachloroethylene Detection Tubes (1 to 75 ppm)
There are no reviews yet.