What does the fire point of a refrigerant oil refer to?

The fire point of a refrigerant oil refers to the temperature at which the oil will continue to burn once it has been ignited. This is an important safety parameter in the handling and application of refrigerants, as it helps determine the conditions under which the oil could pose a fire hazard. The fire point is typically higher than the flash point, which is the lowest temperature at which the oil can produce enough vapors to form an ignitable mixture with air. Understanding the fire point is crucial for ensuring safe operational practices in environments where refrigerant oils are utilized, particularly in avoiding situations that could lead to combustion.