standard erythemal dose

[12.1.2.7.2] SED

A standardized measure of erythemogenic UV radiation. One SED is equivalent to an erythemally effective radiant exposure of 100 J/m2 when the radiation is weighted by the erythema action spectrum normalized to its maximum, ser(λ).

(See also erythemal action spectrum.*)

 

* A Reference Action Spectrum for Ultraviolet Induced Erythema in Human Skin, CIE Publication 106; 106/4. Vienna, Austria: International Commission on Illumination; 1993.

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