NIST Standard Reference Database (SRD) 60

NIST Temperature Scale Database (SRD 60), Version 3.0

Fixed Points Associated with a Selected Reference:

Reference:

Lemmon, E.W., Bell, I.H., Huber, M.L., McLinden, M.O. NIST Standard Reference Database 23: Reference Fluid Thermodynamic and Transport Properties-REFPROP, Version 10.0, National Institute of Standards and Technology, Standard Reference Data Program, Gaithersburg, 2018. (No DOI) (2018)

Instruction:

Total Records: 25

Substance	Transition	T₉₀ (K)	u(T₉₀) (mK)	T-T₉₀ (mK)	u(T-T₉₀) (mK)	u(T₉₀) (K)	Eval
Acetylene	BP	188.26	na			na
Acetylene	TP	191.75	na			na
Ar	BP	87.302	0.002			0.002
Chlorotrifluoromethane	BP	191.674	0.009			0.009
Chlorotrifluoromethane	TP	92	na			na
e-D₂	BP	23.661	0.035			0.035
Ethane	BP	184.5686	0.0009			0.0009
Ethane	TP	90.368	na			na
He	BP	4.2238	0.0001			0.0001
He	TP	2.1768	na			na
Methane	BP	111.667	na			na
Methane	TP	90.6941	na			na
n-D₂	TP	18.724	na			na
n-H₂	BP	20.369	na			na
n-H₂	TP	13.957	na			na
N₂	BP	77.3550	0.0008			0.0008
Ne	BP	27.100	0.003			0.003
Ne	BP	27.100	0.003			0.003
o-H₂	b-g	20.38	na			na
o-H₂	TP	14.008	na			na
O₂	BP	90.1878	0.005			0.005
p-H₂	BP	20.271	na			na
p-H₂	TP	13.8033	na			na
Propane	BP	231.036	0.002			0.002
Propane	TP	85.525	na			na