NIST Temperature Scale Database (SRD 60), Version 3.0

Fixed Points Associated with a Selected Reference:

Temperature Scale Points
All Fixed Points

Reference:

Lemmon, E.W. and Jacobsen, R.T, "A New Functional Form and New Fitting Techniques for Equations of State with Application to Pentafluoroethane (HFC-125)," J. Phys. Chem. Ref. Data, 34(1):69-108, 2005. (DOI:) (2005)

Instruction:Total Records:   2
Substance
 
Transition
 
T90 (K)
 
u(T90)
(mK)
 
T-T90
(mK)
 
u(T-T90)
(mK)
 
u(T90) (K)
 
Eval
 
Pentafluoroethane BP 225.06 0.01 0.01
Pentafluoroethane TP 172.52 na na