https://doi.org/10.1351/goldbook.UT07492
Region of the electromagnetic spectrum extending from about \(100\ \text{nm}\) to \(400\ \text{nm}\). This region is divided into four sub-bands as follows:
| Vacuum Ultraviolet (VUV) | \(100{-}200\ \text{nm}\) |
| UV-C | \(200{-}280\ \text{nm}\) |
| UV-B | \(280{-}315\ \text{nm}\) |
| UV-A | \(315{-}400\ \text{nm}\). |
Note:
The notation and the limits of the various regions are as recommended by the International Commission on Illumination (CIE), with the exception that in these recommendations the UV-C range is \(100{-}280\ \text{nm}\), including thus the vacuum UV range.
The notation and the limits of the various regions are as recommended by the International Commission on Illumination (CIE), with the exception that in these recommendations the UV-C range is \(100{-}280\ \text{nm}\), including thus the vacuum UV range.