A water and methanol dew point generation device has been built up and test
ed. Experimental measurements of dew point for ternary methane + water + me
thanol were carried out between 1.01 X 10(5) Pa to 97.84 X 10(5) Pa and the
temperature range from 248.71 to 282.93 K. A EOS-CR method (equation of st
ate - chemical reticular) reproduces very accurately the experimental curve
s independently of the pressure and temperature ranges.