Trichloroethylene |
NO.132LL |
| Cl2C:CHCl |  |
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Performance
| Measuring Range |
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| Number of Pump Strokes |
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| Correction Factor |
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| Sampling Time | 1.5 minutes per pump stroke | |||
| Detecting Limit | 0.05 ppm (n=2) | |||
| Colour Change | Yellow → Purple | |||
| Reaction Principle | Cl2C:CHCl + PbO2 + H2SO4 → HCl HCl + Basic Compound → Chloride |
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| Coefficient of Variation | 10% (for 0.25 to 1 ppm), 5% (for 1 to 4 ppm) | |||
| Shelf Life | 2 Years | |||
| Corrections for temperature & humidity | Temperature correction is necessary | |||
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. | ||||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Hydrogen chloride, Chlorine, Bromine | 1/2 time | + | Pale bluish purple |
| Tetrachloroethylene | 1/2 time | + | Pale bluish purple |
| 1,1,1-Trichloroethane | 80 ppm | No | No ( 80 ppm) |
| Toluene, Xylene | No | No |
Other substance measurable with this detector tube
| Substance | Correction Factor | No. of pump strokes | Measuring Range |
| 1,2-Dichloroethylene | 1.5 | 1 | 0.375 to 6 ppm |
| Calibration gas generation | Diffusion tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 10 ppm | 25 ppm | - |
