IEVref:845-24-090ID:
Language:enStatus: Standard
Term: spectral absorbance, <of a homogeneous non-diffusing layer>
Synonym1: spectral internal transmittance density
Synonym2:
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Symbol: Ai(λ)
Definition: logarithm to base 10 of the reciprocal of the spectral internal transmittance, τi(λ)

Ai(λ) = −log10 τi(λ)

Note 1 to entry: The spectral absorbance has unit one.

Note 2 to entry: This entry was numbered 845-04-83 in IEC 60050-845:1987.


Publication date:2020-12
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