| Code | Ca mg/L | Cu mg/L | Fe mg/L | |||
|---|---|---|---|---|---|---|
| Value | Certified Uncertainty | Value | Certified Uncertainty | Value | Certified Uncertainty | |
| GBW09131 | 94 | 16 | 0.66 | 0.08 | 1.57 | 0.22 |
| GBW(E)090006 | 93.5 | 3.6 | 0.64 | 0.04 | 3.62 | 0.09 |
| GBW(E)090060 | 78.7 | 14.2 | 1.03 | 0.22 | 0.90 | 0.26 |
| GBW(E)090061 | 114.2 | 20.8 | 1.53 | 0.25 | 1.88 | 0.35 |
