absorption factor

https://doi.org/10.1351/goldbook.A00039
See:
absorptance
Sources:
Green Book, 2nd ed., p. 32 [Terms] [Book]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 960 [Terms] [Paper]