The test for floc point is intended to determine the waxing tendency of refrigeration grade oils at low temps.The test is based on evaluation of the wax preceipitation tendency of a mixture aonctaining 90% R-12 and 10% by volume of the oil being tested.
ANSI/ASHRAE 86-1994 history
2013ANSI/ASHRAE 86-2013 Methods of Testing the Floc Point of Refrigeration Grade Oils
1994ANSI/ASHRAE 86-1994 Method of Testing the Floc Point of Refrigeration Grade Oil