NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
1. Table 23-2-(3.25030)-db ?o Pages db-2188.0 to db-2188.2 New table for 1-cyclopentyl-4-(3-cyclopentylpropyl)dodecane containing the density for the real fluid at selected temperatures and pressures. 2. Table 23-2-(3.25060)-db ?o Pages db-2189.0 to db-2189.2 New table for 1-cyclohexyl-3-(2-cyclohexylethyl)undecane containing the density for the real fluid at selected temperatures and pressures. 3. Table 23-2-(3.28010)-db ?o Pages db-2194.0 to db-2194.2 New table for 1,7-dicyclopentyl-4-(3-cyclopentylpropyl)heptane containing the density for the real fluid at selected temperatures and pressures. 4. Table 23-2-(3.52510)-db ?o Pages db-2345.0 to db-2345.2 New table for 1-(1-decahydronaphthyl)pentadecane containing the density for the real fluid at selected temperatures and pressures. 5. Table 23-2-(5.82040)-db ?o Pages db-2826.0 and db-2826.1 New table for 2,6,10,15,19,23-hexamethyl-2,6,10,14,18,22-tetracosahexaene containing the density for the real fluid at selected temperatures and pressures. 6. Table 23-2-(43.62000)-db ?o Pages db-4830.0 and db-4830.1 New table for octadecahydrochrysene containing the density for the real fluid at selected temperatures and pressures. 7. Table 23-2-(33.11002)-ja ?o Pages ja-3220.0 to ja-3220.11 New table for methylbenzene containing the compressibility factor for the real fluid at selected temperatures and pressures. 8. Table 23-2-(33.11002)-jk ?o Pages jk-3220.0 to jk-3220.11 New table for methylbenzene containing the speed of sound for the real fluid at selected temperatures and pressures. 9. Table 23-2-(33.11002)-jl ?o Pages jl-3220.0 to jl-3220.11 New table for methylbenzene containing the adiabatic compressibility for the real fluid at selected temperatures and pressures. 10. Table 23-2-(33.23200)-ka ?o Page ka-3430 New table for diphenyl alkanes containing vapor pressures. 11. Table 23-2-(47.20000)-ka ?o Page ka-4990 New table for fullerene hydrides containing vapor pressures. 12. Table 23-2-(33.23200)-m ?o Page m-3430 New table diphenyl alkanes containing vapor pressure, temperature, enthalpy, and entropy of phase transition. 13. Table 23-2-(33.23200)-n ?o Pages n-3430 and n-3431 New table for diphenyl alkanes containing enthalpy of combustion at 298.15 K and 1 bar. 14. Table 23-2-(33.23200)-p ?o Pages p-3430 and p-3431 New table for diphenyl alkanes containing enthalpy and Gibbs energy of formation, entropy, and heat capacity at 298.15 K and 1 bar.
Frenkel, M.
(2007),
TRC Thermodynamic Tables, Hydrocarbon Supplement H134, 2007, Nat'l Std. Ref. Data Series (NIST NSRDS) -, National Institute of Standards and Technology, Gaithersburg, MD
(Accessed October 21, 2025)