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ultraviolet subdivisions

[2.15.1] Common subdivisions in the ultraviolet (UV) range between 100 nm and 400 nm, as given by the International Commission on Illumination (CIE)4 are:

UV-A   315 to 400 nm
UV-B   280 to 315 nm
UV-C   100 to 280 nm

(See also regions of the electromagnetic spectrum.)

4. ILV: International Lighting Vocabulary. Vienna: International Commission on Illumination; 2020. (CIE S 017/E2020).

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