Carbon disulphide |
NO.13M |
| CS2 |  |
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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 | 3 minutes per pump stroke | |||
| Detecting Limit | 10 ppm (n=2) | |||
| Colour Change | Purple → Yellow | |||
| Reaction Principle | CS2 + I2O4 + H2S2O7 → SO2 + CO2 SO2 + BaCl2 + H2O → BaSO4 + 2HCl HCl + Base → Chloride |
| Coefficient of Variation | 10% (for 50 to 400 ppm), 5% (for 400 to 1600 ppm) |
| Shelf Life | 3 Years |
| Corrections for temperature & humidity | Temperature correction is necessary |
| Store the tubes at cool and dark place. | |
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| sulphur dioxide | + | Yellow | |
| Hydrogen sulphide | + | Yellow | |
| Lower class HCs | 1000 ppm | + | Yellow |
| Carbonyl sulphide | + | Yellow |
| Calibration gas generation | Diffusion tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 1 ppm | - | 1.3 to 50% |
