Absorptance

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Absorptance is the fraction of light absorbed by a sample.

Absorptance (fraction) = absorbed light/incident light = (incident light - transmitted light)/incident light,

Absorptance % = 100% - Transmittance %.

Absorptance is available as standard on PFXi instruments but not PFX instruments. This is shown as ABS on 'Spectral' results screen.

On the PFXi range, Absorptance is expressed as a fraction, ie. as a value between 0 and 1.

This is not to be confused with Absorbance, which Lovibond Tintometer calls optical density (OD) on the PFX and PFXi ranges.
Title Application Part Number Add to quotation cart
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