GB/T 12577-1990

GB/T 12577-1990 specifies a test method for determining the floc point of refrigerator oils, which is the temperature at which wax or other solid components begin to precipitate from the oil. This standard is applied in the quality control and performance evaluation of lubricating oils used in refrigeration compressors, ensuring that the oil remains clear and flowable at low operating temperatures. It is primarily used by manufacturers and testing laboratories in the chemical and refrigeration industries to verify oil suitability for systems like air conditioners and industrial freezers.