1,1,1-Trichloroethane Detection Tubes (6 to 900 ppm)
Gastec Detection Tube No. 135L measures 1,1,1-Trichloroethane with a Range of 6-900 ppm.
- Measuring Range ( 1,1,1-Trichloroethane):
- 6 to 20 ppm
- 20 to 200 ppm
- 200 to 900 ppm
- Number of Pump Stroke: 2, 1, 1/2
- Correction Factor: 0.3, 1, 4.5
- Sampling Time: 3 minutes per pump stroke
- Detecting Limit: 3 pp (2 pump strokes)
- Changes from White to Pale Pink
- Corrections for temperature & humidity: Temperature correction is necessary
- Reaction Principle:
- CH3CCl3 + CrO3 + H2S2)7 → Cl2
- Cl2 + 2,2',5,5'-Tetramethylbenzidine → Pale pink product
- Relative Standard Deviation: 10% (for 20 to 60 ppm), 5% (for 60 to 200 ppm)
- 2 Year Shelf Life
- Store the tubes at cool and dark place.
- Comes in a Box of 5 pre tubes and 5 detector tubes
Possible coexisting substances and their interferences:
| Substance |
Interference |
Changes color by itself to |
| Halogens |
+ |
Pale pink |
| Nitrogen oxides |
+ |
Pale pink |
| Saturated halogenated hydrocarbons |
+ |
Pale pink |
Other substance measurable with this detector tube:
| Substance: |
Correction Factor: |
No. of Pump Strokes: |
Measuring Range: |
| 1,2-Dichloroethane |
5.2 |
1 |
104 to 1040 ppm |
| 1,1,2,2-Tetrabromoethane |
0.046 |
4 |
0.92 to 9.2 ppm |
| 1,2,3-Trichloropropane |
1.8 |
4 |
36 to 360 ppm |
1,1,1-Trichloroethane Detection Tubes (6 to 900 ppm)
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