Refprop 91 Free Updated -

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.

No. NIST REFPROP has never been freeware. A single-user license for REFPROP 9.1 was ~$325 (later versions are $375+). However:

But does a legitimate, free version of REFPROP 9.1 exist? And if you find a download link, should you use it?

If you need REFPROP for legitimate academic or research use:

Unlocking Fluid Properties: Is There a Free Version of REFPROP?

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.

No. NIST REFPROP has never been freeware. A single-user license for REFPROP 9.1 was ~$325 (later versions are $375+). However:

But does a legitimate, free version of REFPROP 9.1 exist? And if you find a download link, should you use it?

If you need REFPROP for legitimate academic or research use:

Unlocking Fluid Properties: Is There a Free Version of REFPROP?