| 标准气体浓度值 %mol/mol | 20.0 | 50.0 | 80.0 |
| 实测值 %mol/mol | 20.1 | 50.2 | 79.9 |
| 20.2 | 50.3 | 80.0 | |
| 20.2 | 50.3 | 79.8 | |
| 20.1 | 50.5 | 79.9 | |
| 20.0 | 50.2 | 80.1 | |
| 20.1 | 50.2 | 79.7 | |
| 20.3 | 50.3 | 80.0 | |
| 20.2 | 50.4 | 80.1 | |
| 20.2 | 50.5 | 80.1 | |
| 20.1 | 50.2 | 79.9 | |
| 标准偏差s %mol/mol | 0.085 | 0.12 | 0.14 |