Year | CoP | Boltzmann’s constant | Achieved relative uncertainty | Absolute uncertainty | Calculated comparative uncertainty* | Ref. | |
k・1023 | rk・106 | Δk・1029 | εk'' = Δk/Sk IARU | ||||
m2 kg/(s2 K) | m2 kg/(s2 K) | ||||||
2011 | LMТQ I | 1.38065200 | 12.0 | 16.7 | 7.0430 | [30] | |
2015 | 1.38065160 | 3.9 | 5.4 | 2.2700 | [31] | ||
2015 | 1.38064974 | 71.0 | 98.0 | 41.326 | [32] | ||
2017 | 1.38064974 | 2.7 | 3.7 | 1.5716 | [33] | ||
2017 | 1.38064300 | 5.0 | 6.9 | 2.9103 | [34] | ||
2017 | 1.38064360 | 10.0 | 14.1 | 5.9370 | [35] | ||