This standardization eliminates ambiguity. When a manufacturer in Asia and a certification body in North America evaluate the performance of a chiller, they use REFPROP to ensure they are comparing apples to apples. By providing a "gold standard" reference, NIST has facilitated global trade and ensured safety, preventing the use of erroneous property data that could lead to over-pressurized vessels or inefficient energy usage.
For a given state (e.g., temperature and pressure), REFPROP 9 calculates: nist refprop 9
As of 2024, . The current version is 10.0 (build 2024-04-15). However, owners of a legacy license can often redownload version 9 from the NIST official website using their original credentials. This standardization eliminates ambiguity
In v9, the DLL function names end with dll . The manual ( refprop.pdf ) lists exact signatures. For a given state (e
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