(Scanned original: to be superseded.)

ESDU 89006 gives vapour pressure for 3-chloropropene, 3-chloropropylene, perchlorobuta-1,3-diene, perfluorobut-1-ene and perfluoropropylene together with 45 bromo-, chloro- and fluoroalkanes and 9 chloro- and fluoroaromatics. The data were obtained by a method described in ESDU 84021 involving a critical evaluation of experimental results in the literature, extrapolated by a reliable method into the low pressure region, and fitted by a Wagner equation applying over the full liquid range from the freezing to the critical point. The coefficients for the equation are given for each compound and three tables of vapour pressure values calculated using them are included: in SI units at 5 K and 10 K intervals, in atmospheres at 5 and 10 degree C intervals, in lbf/sq in at 10 degree F intervals. A table also gives the saturation temperature at various specified pressures, and indicates the possible uncertainty in the calculated values. The sources of the data for each compound are included.