Vinylidene Chloride Detection Tubes (0.4 to 40.6 ppm)
Gastec Detection Tube No. 130L measures Vinylidene Chloride with a Range of 0.4 to 1 ppm.
- Measuring Range:
- 0.4 to 1 ppm
- 1 to 14 ppm
- 14 to 40.6 ppm
- Number of Pump Strokes: 2, 1, 1/2
- Correction Factor: 0.4, 1, 2.9
- Sampling Time: 1.5 minutes per pump stroke
- Detecting Limit: 0.1 ppm (2 pump strokes)
- Changes from Yellow to Reddish Brown
- Corrections for temperature & humidity: Unnecessary
- 2 Year Shelf Life (in the refrigerator)
- Reaction Principle:
- CH2:CCl2 + Cr6+ + H2SO4 → HCl
- HCl + Base → Chloride
- Relative Standard Deviation: 10 % (for 1 to 4 ppm), 5 % (for 4 to 14 ppm)
- Comes in a Box of 5 pre tubes and 5 detector tubes
- 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 |
| Tetrachloroethylene |
≧ 4 times |
+ |
Reddish brown |
| Trichloroethylene |
≧ 1/1 |
+ |
Reddish brown |
| Vinyl chloride |
≧ 1/7 |
+ |
Reddish brown |
| Toluene |
≧ 500 ppm |
- |
No |
| Ethylene |
≧ 300 ppm |
- |
No |
| Benzene |
≧ 400 ppm |
- |
No |
Vinylidene Chloride Detection Tubes (0.4 to 40.6 ppm)
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