IEVref:845-24-009ID:
Language:enStatus: Standard
Term: emissivity
Synonym1: hemispherical emissivity
Synonym2:
Synonym3:
Symbol: ε
εh
Definition: quotient of the radiant exitance of a radiator, Me, and the radiant exitance of a Planckian radiator at the same temperature, Mb

ε= M e M b MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbdfwBIj xAHbqedmvETj2BSbqefm0B1jxALjhiov2DaerbuLwBLnhiov2DGi1B TfMBaebbnrfifHhDYfgasaacH8WjY=vipgYlh9vqqj=hEeeu0xXdbb a9frFj0=OqFfea0dXdd9vqai=hGuQ8kuc9pgc9q8qqaq=dir=f0=yq aiVgFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaaeaqbaaGcba aeaaaaaaaaa8qacqaH1oqzcqGH9aqpdaWcaaWdaeaapeGaamyta8aa daWgaaWcbaWdbiaabwgaa8aabeaaaOqaa8qacaWGnbWdamaaBaaale aapeGaaeOyaaWdaeqaaaaaaaa@3FD0@

Note 1 to entry: The emissivity has unit one.

Note 2 to entry: This entry was numbered 845-04-09 in IEC 60050-845:1987.


Publication date:2020-12
Source
Replaces:
Internal notes:
CO remarks:
TC/SC remarks:
VT remarks:
Domain1:
Domain2:
Domain3:
Domain4:
Domain5: