NIST Temperature Scale Database (SRD 60), Version 3.0

Fixed Points Associated with a Selected Reference:

Temperature Scale Points
All Fixed Points

Reference:

Bedford, RE; Bonnier, G; Maas, H; Pavese, F, Recommended values of temperature on the International Temperature Scale of 1990 for a selected set of secondary reference points, Metrologia, 33 (1996) 133-154. (DOI:) (1996)

Instruction:Total Records:   81
Substance
 
Transition
 
T90 (K)
 
u(T90)
(mK)
 
T-T90
(mK)
 
u(T-T90)
(mK)
 
u(T90) (K)
 
Eval
 
AgAl - 30% eut 840.957 0.002 0.002
Al SC 1.181 0.003 0.003
Al2O3 MP 2326 2 2
Ar BP 87.3032 0.0003 0.0003
Benzoic Acid FP 395.502 0.007 0.007
Benzoic Acid TP 395.486 0.002 0.002
Bi FP 544.5522 0.0003 0.0003
Bromobenzene TP 242.424 0.04 0.04
Cd FP 594.2186 0.0002 0.0002
Chlorotrifluoromethane BP 191.784 0.025 0.025
Chlorotrifluoromethane TP 86.746 na na
Co FP 1768 3 3
CO2 SP 194.686 0.003 0.003
CO2 TP 216.5924 0.0005 0.0005
CuAg - 71.9% EP 1052.78 0.05 0.05
CuAl - 66.9% eut 821.308 0.010 0.010
Diphenylether TP 300.014 0.001 0.001
e-D2 BP 23.636 0.009 0.009
e-D2 TP 18.6889 0.0003 0.0003
Ethane TP 90.36 0.06 0.06
Ethylene Carbonate TP 309.465 0.001 0.001
Fe FP 1811 3 3
Ga TP 302.9166 0.0001 0.0001
GaIn - 20.5% eut 288.800 0.001 0.001
GaSn - 8% eut 293.626 0.002 0.002
He BP 4.2238 0.0032 0.0032
4He SF 2.1768 0.0001 0.0001
HfO2 MP 3076 6 6
Hg BP 629.811 0.004 0.004
Hg FP 234.3210 0.0005 0.0005
Icosane TP 309.63 0.01 0.01
In SC 3.4145 0.0025 0.0025
In TP 429.7436 0.0002 0.0002
Ir FP 2719 6 6
Kr BP 119.735 0.013 0.013
Kr TP 115.775 0.001 0.001
Li2O MP 1711 5 5
Methane a-b 20.48 0.02 0.02
Methane BP 111.668 0.005 0.005
Methane TP 90.6943 0.0003 0.0003
Mo MP 2895 4 4
n-D2 TP 18.7236 0.0003 0.0003
n-H2 BP 20.388 0.002 0.002
n-H2 TP 13.952 0.002 0.002
N2 a-b 35.614 0.006 0.006
N2 BP 77.352 0.002 0.002
N2 TP 63.1507 0.0001 0.0001
Na BP 1156.09 0.05 0.05
Na FP 370.944 0.005 0.005
NaCl FP 1075.168 0.011 0.011
Nb MP 2745 7 7
Nb SC 9.288 0.003 0.003
Ne BP 27.097 0.001 0.001
Ne-20 TP 24.5406 0.0006 0.0006
Ni FP 1728 1 1
O2 a-b 23.868 0.005 0.005
O2 b-g 43.796 0.001 0.001
O2 CP 90.197 0.001 0.001
Pb FP 600.612 0.001 0.001
Pb SC 7.1997 0.0025 0.0025
Pd FP 1828.0 0.1 0.1
Propane TP 85.52 0.01 0.01
Pt FP 2041.3 0.4 0.4
Rb TP 312.453 0.002 0.002
Review RE
Rh FP 2236 3 3
Ru MP 2606 10 10
S BP 717.674 0.002 0.002
Sb FP 903.778 0.001 0.001
SF6 TP 223.554 0.005 0.005
Succinonitrile TP 331.215 0.002 0.002
Ta MP 3280 na na
Ti MP 1943 2 2
Trichlorofluoromethane TP
H2O BP 373.124 0.001 0.001
H2O IP 273.15 <0.0001 <0.0001
Xe BP 165.05 0.02 0.02
Xe TP 161.405 0.001 0.001
Y2O3 MP 2707 5 5
Zn SC 0.8500 0.0030 0.0030
Zr MP 2127 8 8