This Standard divides the infrared region of the electromagnetic spectrum from 0.750 microns to 30.0 microns into named subregions, also known as bands, on the basis of the kinds of detectors or materials used to sense infrared radiation. It defines the generic form of the Abbe dispersion formula for materials that operate in the infrared spectrum and specifies reference wavelengths for standard Abbe numbers in each of the named bands. This Standard also defines standard reference wavelengths for the general metrology of infrared materials and components in each of the spectral bands.

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