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:

Arpaci E., Betz G., Frohberg M. G., Determination of the Spectral Emissivities of Niobium, Molybdenum, Tantalum, and Tungsten at their Melting Points, High Temp. High Press., 1985, 17, 519-522. (No DOI) (1985)

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