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Definition of Transmittance (percent transmittance; transmission)

Transmittance (percent transmittance; transmission) Definition from Science & Technology Dictionaries & Glossaries
General Chemistry Glossary
(T) Compare with absorbance .The transmittance is the fraction of radiant intensity transmitted by a sample,T = I/I0 where T is the transmittance and I, I0 are the radiant intensity of the radiation after and before passing through the sample. The percent transmittance is the transmittance times 100%.