| Code | 波长（cm<sup>-1</sup>）(4000) The nominal transmission ratio | 波长（cm<sup>-1</sup>）(3000) The nominal transmission ratio | 波长（cm<sup>-1</sup>）(2000) The nominal transmission ratio | |||
|---|---|---|---|---|---|---|
| Value | Certified Uncertainty | Value | Certified Uncertainty | Value | Certified Uncertainty | |
| GBW(E)130391 | 0.0976 | 0.0030 | 0.0942 | 0.0030 | 0.0919 | 0.0030 |
