Vinyl chloride |
NO.131 |
| CH2FCHC‚Œ |  |
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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 minute per pump stroke | |||
| Detecting Limit | 0.005 % (n=2) | |||
| Colour Change | Orange → Dark green | |||
| Reaction Principle | CH2:CHCl + Cr6+ + H2SO4 → Cr3+ | |||
| Coefficient of Variation | 10% (for 0.05 to 0.2 %), 5% (for 0.2 to 1 %) | |||
| Shelf Life | 3 Years | |||
| Corrections for temperature & humidity | Unnecessary | |||
| Store the tubes at cool and dark place. | ||||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Organic solvents | + | Dark green |
| Calibration gas generation | Static gas dilution method |
| TLV-TWA | TLV-STEL | Explosive range |
| 1 ppm | - | 3.6 to 23 % |
