ultraviolet radiation: optical radiation of wavelength range between 100 nm and 400 nm.

The ultraviolet region is divided into UVA (315-400 nm), UVB (280-315 nm) and UVC (100-280 nm);

other physical agents, such as optical and ultra-violet radiation, laser radiation, pressure, noise and vibration.

Research will focus on: understanding and quantification of changes in the carbon and nitrogen cycles; the role of all sources of greenhouse gases and atmospheric pollutants and their sinks in the biosphere; their effects on climate dynamics and variability, ocean and atmospheric chemistry, and their interactions; future stratospheric ozone levels and ultraviolet radiation; prediction of global climatic change and impacts; associated phenomena (e.g. the North Atlantic oscillation, El Niño and changes in sea level and ocean circulation); and mitigation and adaptation strategies.

The UV-resistance testing of internal materials to light source radiation is not necessary if low-UV-type gas-discharge light sources are being applied, or if provisions are taken to shield the relevant components from UV radiation, e.g. by glass filters.

- X-ray goggles, laser-beam goggles, ultra-violet, infra-red, visible radiation goggles.