| Wavelength accuracy | |||
| Standard wavelength (nm) | Wavelength obtained (n = 3) | Difference | |
| 253.700 | 253.683 | −0.017 | |
| 546.100 | 546.003 | −0.097 | |
| 871.600 | 871.630 | +0.030 | |
| Wavelength reproducibility | |||
| Time interval (6 hr) | |||
| Maximum | Minimum | Difference | |
| 253.700 | 253.690 | 253.680 | 0.01 |
| 546.100 | 546.010 | 546.00 | 0.01 |
| 871.600 | 871.630 | 871.630 | 0.00 |