Detailed description of the 2014 adjustment, including the covariance matrix of selected constants:
P. J. Mohr, D. B. Newell, and B. N. Taylor, Rev. Mod. Phys. 88, 035009, 73 pages (2016)
P. J. Mohr, D. B. Newell, and B. N. Taylor, J. Phys. Chem. Ref. Data 45, 043102, 74 pages (2016)
Return to Latest (2014) values of the constants.