Vinyl Chloride Detection Tubes (0.25 to 54 ppm)
Gastec Detection Tube No. 131La measures Vinyl Chloride with a Range of 0.25 to 54 ppm.
- Measuring Range:
- 0.25 to 0.5 ppm
- 0.5 to 1 ppm
- 1 to 20 ppm
- 20 to 54 ppm
- Number of pump strokes: 4, 2, 1, 1/2
- Correction Factor, 1/4, 1/2, 1, 2.7
- Sampling Time: 1 minute per pump stroke
- Detecting Limit: 0.05 ppm (4 pump strokes)
- Changes from Yellow to Reddish Brown
- Corrections for temperature & humidity: Unnecessary
- Relative Standard Deviation: 10% (for 1 to 6 ppm), 5% (for 6 to 20 ppm)
- 2 Year Shelf Life (in the refrigerator)
- Reaction Principle:
- CH2:CHCl + Cr6+ + H2SO4 → HCl
- HCl+ Base → Chloride
- Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.
- Comes in a Box of 5 pretubes and 5 detector tubes
Possible coexisting substances and their interferences
| Substance |
Concentration |
Interference |
Changes color by itself to |
| Tetrachloroethylene |
≧ 3 times |
+ |
Reddish brown |
| Trichloroethylene |
≧ 1/2 |
+ |
Reddish brown |
| Xylene, Toluene |
≧ 500 ppm |
- |
No |
| Ethylene |
≧1000 ppm |
- |
No |
| Benzene |
≧ 400 ppm |
- |
No |
Other substances measurable with this detector tube:
| Substance |
Correction Factor |
No. of pump strokes |
Measuring Range
(ppm) |
| 1,3-Dichloropropene |
0.5 |
2 |
0.5 to 10 |
| p-Ethyl benzylchloride |
2.5 |
2 |
2.5 to 50 |
| Ethyl chloroformate |
7 |
2 |
7 to 140 |
| 2-Methyl allyl chloride |
2.75 |
1 |
2.8 to 55 |
| Methyl chloroformate |
58 |
5 |
58 to 1160 |
| Propylene dichloride |
40 |
2 |
40 to 800 |
| 1,2,4-Trichlorobenzene |
0.65 |
4 |
0.65 to 13 |
Vinyl Chloride Detection Tubes (0.25 to 54 ppm)
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