Test procedure for performing determination of low temperature viscosity of automotive hydraulic oils and transmission fluids. This method is also applied to viscosity determination of other types of lubricants, and when the fluid is not newtonian anymore, due to paraffin wax crystallization, consequently the kinematic viscosity measurements are not applicable.
Cold liquid bath
Temperature range from + 15 to - 45°C
Programme liquid bath including 2 baths, the first one is a cold air chamber (about - 75°C) and the second one is a turntable which can hold up to 8 test samples. The viscosity is directly measured after the turntable and the time of conditioning is standardized. The microprocessor base on the programmable controller can measure several cooling profiles