IUPAC definition : SI base unit for luminous intensity (symbol: cd). The candela is the luminous intensity,
in a given direction, of a source that emits monochromatic radiation of frequency
540 x 10E12 hertz and that has a radiant intensity in that direction of (1/683) watt
per steradian.;
SI base unit for luminous intensity (symbol: cd). The candela is the luminous intensity,
in a given direction, of a source that emits monochromatic radiation of frequency
540 x 10E12 hertz and that has a radiant intensity in that direction of (1/683) watt
per steradian.
Currated CISMeF NLP mapping