IEVref:845-24-007ID:
Language:enStatus: Standard
Term: Stefan-Boltzmann's law
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Definition: relation between the radiant exitance, Me, of a Planckian radiator and its temperature, T, given by

Me = σ T4

where σ is the Stefan-Boltzmann constant and T is the thermodynamic temperature

Note 1 to entry: The Stefan-Boltzmann constant can be calculated by σ= 2 π 5 k 4 15 h 3 c 0 2 MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdh9vqqj=hEeea0xXdbb a9frFj0=OqFfea0dXdd9vqaq=JfrVkFHe9pgea0dXdar=Jb9hs0dXd bPYxe9vr0=vr0=vqpWqaaeaaciWacmGadaGadeaaeaGaauaaaOqaai abeo8aZjabg2da9maalaaabaGaaGOmaGWaaiab=b8aWnaaCaaaleqa baGaaGynaaaakiaadUgadaahaaWcbeqaaiaaisdaaaaakeaacaaIXa GaaGynaiaadIgadaahaaWcbeqaaiaaiodaaaGccaWGJbWaa0baaSqa aiaaicdaaeaacaaIYaaaaaaaaaa@4533@ where h is the Planck constant, c0 is the speed of light in vacuum, and k is the Boltzmann constant.

Note 2 to entry: For the value of the Stefan-Boltzmann constant, σ, see CODATA.

Note 3 to entry: This entry was numbered 845-04-07 in IEC 60050-845:1987.


Publication date:2020-12
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