OPTICAL DENSITY (ABSORBANCE)

Please note; with both our PFX and PFXi ranges Absorbance is referred to as Optical Density (OD). This is an available Colour Scale.

Absorbance should not be confused with Absorptance (the fraction of light absorbed by a sample.)

Technically is a Logarithm to the base 10 of the reciprocal of the Transmittance.