Three are listed.
This appears to be the specific volume for saturated liquid.
Pretty sure this is saturated vapor.
I also need an explanation of the different specific volume variables. I know the meaning of:
vi = specific volume of saturated solid (ice)
vf = specific volume of saturated liquid (fluid)
vg = specific volume of saturated vapor (gas)
But what do
vi/vf and vig/vfg mean, and how do they relate to the columns in the table?