ISSN 0377-9556 (PRINT)
ISSN 2383-9457 (ONLINE)
ISSN 2383-9457 (ONLINE)
| Uncertainty factors | Relative standard uncertainty | Degree of freedom | Uncertainty contribution (%) |
|---|---|---|---|
| Calibration curve measurement using reference materials | 0.0088 | 4 | 55.15 |
| Sample measurement | 0.0062 | 35 | 27.44 |
| Dilution process for samples | 0.0038 | 223 | 10.19 |
| Dilution process for reference materials | 0.0032 | 165 | 7.22 |
| Combined relative standard uncertainty | 0.0119 | 13 | 100.00 |