用气体平衡法研究了两种制冷剂混合物的分馏。通过在润滑剂上保持制冷剂气体蒸汽的恒定成分来测量分馏量，该成分与引入粘度计的液态制冷剂气体混合物的成分相同。具体而言，在-25°C至125°C（-13°F至257°F）的规定温度范围内，以及在500 psia（3.45 MPa）的最高试验压力范围内，润滑剂中溶解制冷剂气体的浓度范围为0.6%至78%（按重量计）。本研究选择的聚醇是32 ISO VG复合支链酸季戊四醇产品。 给出的平滑图形数据是从单独的等温测量中获得的。这些单独的等温测量温度详细说明了润滑剂中R-32和R-134a平衡气体分馏的组成、混合蒸汽压、润滑剂中总混合混合物的浓度（按重量百分比计）以及粘度（以厘泊（cP）和厘斯托克斯（cSt）计）。原始数据以基于固定蒸汽成分的平滑图形形式呈现。单位:双引文:ASHRAE交易，第105卷，第。2.

The fractionation of two refrigerant blends was studied using the gas equilibrium method. The amount of fractionation was measured by maintaining a constant composition of the refrigerant gas vapor over the lubricant, which was equal in composition to the liquid refrigerant gas blend introduced into the viscometer. Specifically, the concentration of the dissolved refrigerant gas in the lubricant ranges from 0.6% to 78% by weight in the specified temperature range of -25°C to 125°C (-13°F to 257°F) and within the highest test pressure of 500 psia (3.45 MPa). The polyolester chosen for this study was a 32 ISO VG complex branched acid pentaerythritol product. Smoothed graphical data presented were obtained from individual isothermal measurements. These individual isothermal measurement temperatures detail the composition of the equilibrium gas fractionation of R-32 and R-134a in the lubricant, mixed vapor pressure, concentration of the total mixed blend as percent by weight in the lubricant and viscosity in centipoise (cP) and centistokes (cSt). The raw data are presented in a smoothed graphical form based on a fixed vapor composition.Units: Dual