NIST Temperature Scale Database (SRD 60), Version 3.0
Fixed Points Associated with a Selected Reference:
Reference:
R. Kleinrahm, W. Wagner, Measurement and correlation of the equilibrium liquid and vapour densities and the vapour pressure along the coexistence curve of methane, J. Chem. Thermodyn. 18, 739-760 (1986). (DOI:) (1986)Instruction:
Substance | Transition | T90 (K)
| u(T90) (mK) | T-T90 (mK) | u(T-T90) (mK) | u(T90) (K)
| Eval |
|---|---|---|---|---|---|---|---|
| Methane | BP | ||||||
| Methane | TP | 90.6934 | 0.0003 | 0.0003 |