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:

Quinn T. J., Chandler T. R. D., The Freezing Point of Platinum Determined by the NPL Photoelectric Pyrometer, in Temperature, Its Measurement and Control in Science and Industry (TMCSI), 1972, 4, 295-309. (No DOI) (1972)

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