Fluid density and specific gravity data.
For gases, the specific gravity is generally measured relative to air. For liquids, the specific gravity is generally measured relative to water.
Fluid dynamic and kinematic viscosity data.
The kinematic viscosity is equal to the dynamic viscosity divided by the fluid density.
Fluid critical point and molar mass data.
The critical point is the temperature and pressure where there is no longer a phase difference between liquid and gas.
Fluid specific heat capacity data.
Heat capacity per mass, and per mole.