maximum level of exposure of a surface, usually the eye or skin, that is not expected to result in adverse biological effects
Note 1 to entry: Exposure limits for human safety of optical radiation,
Note 2 to entry: Exposure limits are often based on irradiance (e.g. for the skin), but where relevant, can also be based on radiance (e.g. the blue light hazard of extended sources).
Note 3 to entry: This entry was numbered 17-416 in CIE S 017:2011.