Assertion: spectrophotometer | /r/CapableOf | compare the fraction of light
Facets:
value: quantitatively
type: MANNER
value: for reflectance measurements
type: PURPOSE
Source sentences:
text: When making transmission measurements, the spectrophotometer quantitatively compares the fraction of light that passes through a reference solution and a test solution, then electronically compares the intensities of the two signals and computes the percentage of transmission of the sample compared to the reference standard.
text: For reflectance measurements, the spectrophotometer quantitatively compares the fraction of light that reflects from the reference and test samples.