IEVref:845-24-073ID:
Language:enStatus: Standard
Term: reflectance factor optical density
Synonym1: reflectance factor density
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Symbol: DR
Definition: logarithm to base 10 of the reciprocal of the reflectance factor, R

DR = −log10R

Note 1 to entry: The reflectance factor optical density has unit one.

Note 2 to entry: This entry was numbered 845-04-67 in IEC 60050-845:1987.


Publication date:2020-12
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