Nist Refprop 9 -

Version 9.0 includes 105 pure fluids , 5 pseudo-pure fluids (like air), and supports mixtures with up to 20 components .

Used for specific international standard equations, such as R-123. nist refprop 9

Version 9, released in several sub-versions (9.0, 9.1), is widely used by engineers, researchers, and educators in the fields of HVAC&R, chemical engineering, energy systems, and fluid mechanics. Version 9

It calculates a vast range of data, including: Thermodynamic: Density, enthalpy, entropy, heat capacity ( ), speed of sound, and vapor pressure. Transport: Viscosity and thermal conductivity. Version 9.0 includes 105 pure fluids

Employed for fluids with limited experimental data.

) to provide accurate gas property references in flow meters and controllers. ResearchGate