WORKING FLUID COMPOSITION FOR REFRIGERATING MACHINE

摘要

A working fluid composition for a refrigerating machine comprises a refrigerant comprising monofluoroethane and a refrigerating machine oil comprising, as a base oil, at least one selected from a mineral oil having %C N in an n-d-M ring analysis of 10 to 60 and a pour point of -15°C or lower and a synthetic hydrocarbon oil having a pour point of -15°C or lower, and the refrigerating machine oil having a kinematic viscosity at 40°C of 3 to 500 mm 2 /s.