Results of Five Consecutive Measurements on Certified Standards of Known Oxygen Concentration
| Oxygen Standard Value (% atm) | Measured Oxygen (% atm) | |
|---|---|---|
| Mean | SD | |
| 19.99 | 20.04 | 0.10 |
| 8.01 | 8.03 | 0.11 |
| 4.00 | 4.19 | 0.04 |
| 2.00 | 2.19 | 0.12 |
| 1.00 | 0.95 | 0.08 |
| 0.00 | 0.07 | 0.07 |
SD = standard deviation.