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:

Berezin B. Ya., Kenisarin M. M., Chekhovskoi V. Ya., Melting Point of Niobium, Teplofzika Vysokikh Temperatur, 1972, 10, 1214-1217. [English translation: High Temperature, 1972, 10, 1092-1094.] () (1972)

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