steam, a Fortran90 code which computes various physical properties of water, related to temperature, pressure and density.
Most of these routines use a standard set of SI units. The original routines were written in Fortran77. This Fortran90 version has been extensively rewritten, with some additional routines for computing quantities such as the viscosity, thermal conductivity, and the Prandtl number.
The information on this web page is distributed under the MIT license.
steam or steam_nbs is available in a Fortran77 version and a Fortran90 version.
steam_interact, a Fortran90 program which queries the NBS steam table package;
test_values, a Fortran90 library which stores selected test values of various functions, including certain functions approximated by the steam() library.