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The expanded uncertainties (k = 2) of WTW OXI340i with a CellOx 325 sensor for laboratory and field conditions by model-based measurement uncertainty estimation.
| tmeas (°C) | Cmeas (mg/L) | U (mg/L) | U relative (%) | U (mg/L) | U relative (%) |
|---|---|---|---|---|---|
| Case 1 laboratory conditions | Case 4 field conditions | ||||
| 20 | 0 | 0.10 | - | 0.10 | - |
| 5 | 12.71 | 0.24 | 1.9% | 0.66 | 5.2% |
| 15 | 10.01 | 0.10 | 1.0% | 0.50 | 5.0% |
| 20 | 9.01 | 0.07 | 0.8% | 0.44 | 4.9% |
| 25 | 8.18 | 0.08 | 0.9% | 0.41 | 5.0% |
