Abstract
The P-V-T properties of fluorocarbon refrigerant R 13, i.e. trifluorochloromethane, were experimentally determined using a constant volume apparatus of 270cm3 approximately in its inner volume, which is useful in the ranges of temperatures from -120°C to -100°C and pressures up to 100 kgf/cm2, as described in the present paper in detail. The present measurements for this substance were made with special attention to the neighbourhood of the saturation line in the range of temperatures from 0°C to 100°C with accuracies of ±0.010°C above 20°C and ±0.015°C below 20°C, in the range of pressures up to 100 kgf/cm2 with accuracy of 0.014 kgf/cm2 maximum and in the range of specific volumes from 0.95 cm3/g to 10 cm3/g with accuracy of 0.01 %. The present results show good agreement with those by Michels et al. and could be useful as the reference data for correlating the equation of state.
