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spectral linear scattering coefficient
relative decrease in radiant flux caused by scattering expressed by the relative density of the spectral radiant flux, 
Note 1 to entry: The spectral linear scattering coefficient is expressed in metre to the power minus one (m−1).
Note 2 to entry: This entry was numbered 845-04-77 in IEC 60050-845:1987.
Note 3 to entry: This entry was numbered 17-1221 in CIE S 017:2011.