Industrial steam tables exist to provide a standard set of properties of water and steam for manufacturers, customers, and other parties. Three desirable qualities for a set of industrial steam tables are accuracy, self-consistency, and stability. The properties must be reasonably accurate and self-consistent to support quality design of equipment. A formulation must remain the standard for many years, because the change from one standard to another is inconvenient and expensive. If the tables are represented by computer programs, those programs must be fast, since design software may call...