| 燃烧管/℃ | 还原管/℃ | 氮含量/% |
| 1150 | 850 | 1.869 |
| 1150 | 800 | 1.865 |
| 1150 | 750 | 1.862 |
| 1150 | 700 | 1.853 |
| 1000 | 850 | 1.673 |
| 1000 | 800 | 1.694 |
| 950 | 850 | 1.203 |