Hi
I am new here
I am not use to the site yet and I was searching for a "pressure/ enthalpy chart for refrigerant 12
I found the heading in the site which I have listed below, but I was unable to open it.

Links and Downloads Database
Pressure-Enthalpy Chart

My request is if any body can lead me to a P/h chart for refrigerant 12
My instructor gave us one which is barely readable so I got one from the net BUT, the
KJ/Kg is way off base.
I do not understand and my instructor can not say why.

I am in 3rd year marine engineering and doing air conditioning in my 3rd thermodynamics.
The chart which is barely legible, that our instructor handed out, works with our calculations from the text book (Basic Engineering Thermodynamics by Rayner Joel) so we will be using it to prepare for our 1st class Marine Engineering test after graduation.

I would like to find a chart that I can see clearly and that has the proper enthalpy scale.
Thank you in advance

I hope to add to the forum on a regular basis.