The emissivity of a substance is denoted J. For emissivities of some common substances, see Weast (1981).
Emissivity Coefficient, Emissivity Density, Extinction Coefficient, Kirchhoff's Law, Reflectivity
Weast, R. C. (Ed.). Handbook of Chemistry and Physics, 61st ed. Boca Raton, FL: CRC Press, pp. E-398 to E-399, 1981.
Emissivity Coefficient, Emissivity Density, Extinction Coefficient, Kirchhoff's Law, Reflectivity
