https://doi.org/10.1351/goldbook.G02579
Fundamental physical constant, \(R = \pu{8.314472(15) J K-1 mol-1}\).
Sources:
CODATA 2006 [Terms] [Book]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 974 [Terms] [Paper]