lumen

https://doi.org/10.1351/goldbook.L03639
SI derived unit of @L03646@, \(\text{lm} = \text{cd sr}\).
Sources:
Green Book, 2nd ed., p. 72 [Terms] [Book]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 979 [Terms] [Paper]