%0 Journal Article %T THERMODYNAMIC FUNCTIONS AND PARAMETERS OF FREON-12 ON SATURATED LINE %A Marcin £¿atka %A Jerzy Sado %J Bulletin of the Institute of Heat Engineering %D 1989 %I %X In this paper the approximate formulae for calculation of saturation pressure - p and ¦Ñ', ¦Ñ", h', h", s', s" as a function of saturation temperature are found. In similar manner the approximate formulae for calculation of t, ¦Ñ', ¦Ñ", h', h", s', s" as a function of p are derived. The computer subroutine in Fortran IV for all above-mentioned thermodynamic functions and parameters was written. The operating range of this subroutine is in the ranges t ¡Ê <-70¡ãC; 105¡ã§³> and p ¡Ê <0,01223 MPa; 3,649 MPa). %U http://www.papers.itc.pw.edu.pl/index.php/JPT/article/view/187/342