. If your calculation for a fluid’s density or boiling point is off by even 1%, the entire system could fail, leak, or explode.
RP.THERMdll(T, P, rho, h, s, c_int(1), c_int(0), herr) nist refprop 9
NIST REFPROP 9 provides a comprehensive suite of tools for thermophysical property prediction across a wide range of fluid conditions, including liquid, gas, and supercritical phases. the entire system could fail