本文介绍了在高压和高温下测量润滑油/制冷剂混合物溶解度和粘度的试验装置和方法的设计和建造。此外，还介绍了一种辅助加注系统，该系统用于向试验设备提供精确测量的油和制冷剂量。该试验设施是在资助该研究项目（RP-580）的ASHRAE的赞助和监督下开发的。使用该设备测量了R-22和R-502与常用150 SUS润滑剂的混合物的溶解度、粘度和密度。具体而言，在100°F（38°C）至300°F（149°C）的温度范围内，报告了150 SUS环烷油和150 SUS烷基苯中10%至40%制冷剂（按质量计）的液体混合物的结果。 R-22的油/制冷剂混合物在整个试验范围内是可混溶的，而R-502/环烷油混合物在较高制冷剂浓度的试验中遇到了两种共存的液相。基于对实验数据的非线性回归分析，性能测试结果以图形形式以及经验相关性的形式呈现。与之前在公开文献中发表的有限数据进行比较，结果显示出合理的一致性。

The design and construction of a test facility and methodology for measuring the solubility and viscosity of lubricating oil/refrigerant mixtures at high pressures and temperatures are described. An auxiliary charging system, developed to provide precisely measured quantities of oil and refrigerant to the test facility, is also presented. The test facility was developed under the sponsorship and supervision of ASHRAE which funded this research project (RP-580). The solubility, viscosity and density of mixtures of R-22 and of R-502 with commonly used 150 SUS lubricants have been measured by using this facility. Specifically, results for liquid mixtures of 10% to 40% refrigerant (by mass) in a 150 SUS naphthenic oil and in a 150 SUS alkylbenzene are reported over the temperature range of 100°F (38°C) to 300°F (149°C). The oil/refrigerant mixtures for R-22 were miscible over the complete range tested, while for the R-502/naphthenic oil mixtures, two coexistent liquid phases were encountered in tests at the higher refrigerant concentrations. The property test results are presented in graphical form as well as in the form of empirical correlations based on a nonlinear regression analysis of the experimental data. Comparisons with the limited data previously published in the open literature show reasonable agreement.