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The uncertainties of WTW OXI340i with a CellOx 325 sensor by the Nordtest approach.
| tmeas (°C) | Cmeas (mg dm−3) | RMSbias (mg dm−3) | u(bias) (mg dm−3) | U (mg dm−3) | U (%) |
|---|---|---|---|---|---|
| 20 | 0 | 0.12 | 0.12 | 0.24 | |
| 5 | 12.71 | 0.38 | 0.39 | 0.82 | 6.4 |
| 15 | 10.01 | 0.20 | 0.21 | 0.46 | 4.6 |
| 20 | 9.01 | 0.22 | 0.23 | 0.50 | 5.5 |
| 25 | 8.18 | 0.19 | 0.20 | 0.43 | 5.3 |
