The oil/water separation apparatus has a borosilicate tank, cover with 4 holes for test cylinder, leakage protection vessel made of tempered glass, supplied with cork disk supporting and stainless steel base, stainless steel heater controlled by a digital thermoregulator PID and probe PT100A. The oil/water separation apparatus also includes an overtemperature alarm, programmable digital timer for the duration of the demulsibility test, motor stirrer for bath, centering for 4 emulsion cylinders, bar supporting the stirrer motor with stop system allowing the exact immersion of the blade agitator, variable speed controller 150 to 1999 rpm, stainless steel blade agitator 19ױ.5mm L=120 mm connected to a stainless steel 6 mm shaft.
