NIST, National Institute of Standards and Technology, U.S. Department of Commerce
NIST Temperature Scale Database (SRD 60), Version 3.0

Fixed Points Associated with a Selected Reference:

Temperature Scale Points
All Fixed Points

Reference:

T. Nakano, T. Shimazaki, and O. Tamura, Reproducibility of the Helium-3 Constant-Volume Gas Thermometry and New Data Down to 1.9 K at NMIJ/AIST, Int. J. Thermophys. 38, 105 (2017). (DOI:) (2017)

Substance
 
Transition
 
T90 (K)
 
u(T90)
(mK)
 
T-T90
(mK)
 
u(T-T90)
(mK)
 
u(T90) (K)
 
Eval
 
HeVP