UV Glossary
9-10
Part 1061253B
E 2006 Nordson Corporation
UVB (280-315 nanometers) The portion of the electromagnetic spectrum ranging between 280 and
315 nm. UVB is most responsible for reddening and burning of the
skin and damage to the eyes.
UVC
(200-280 nanometers)
The portion of the electromagnetic spectrum ranging between 200 and
280 nm. UVC is typically referred to as short UV.
UVV
(400-445 nanometers)
The portion of the electromagnetic spectrum ranging between 400 and
445 nm. The V stands for visible UV.
vacuum UV
(100-200 nanometers)
The portion of the electromagnetic spectrum ranging between 100 and
200 nm. UVV does not transmit in air.
viscocity The state or quality of having a cohesive and sticky fluid consistency.
vitrification The act of changing pure opaque quartz into clear non-porous quartz
through a fusion process.
watt One joule per second.
watt density Refer to irradiance.
waveguide Directs microwaves toward the bulb in microwave UV systems.
wavelength The measured cycle length of a wave in the direction of propagation.
