1. What types of performance characteristics are described? Please choose correct characteristic.
| Description |
Characteristic |
| Mean value of 6 measurement results of the same sample was 5.2 mg/L, reference value was 5.0 mg/L. |
|
| Standard deviation of the mean of 6 titration results of the same sample was 0.02 mL. |
|
| Repeatability of the method obtained as the pooled standard deviation from 127 measurement results. |
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| Measurement uncertainty was estimated as ±0.2 mg/L, k = 2. |
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| Relative expanded uncertainty of the method is in the range of 0.9 – 1.1%, k = 2, depending on measurement conditions. |
|
| Analyte loss occurs during sample pre-treatment, causing systematically lower results. Lowering of the results has been estimated to be on an average 5%. |
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