In this investigation the temperature will be the same for all the readings, and this will be monitored using a thermometer. Temperature - An increase in temperature decreases the viscosity of a fluid and therefore decreases the friction opposing the motion of the ball bearings. Viscosity - any object moving through a viscous fluid is acted on by friction due to the fluid. These have been considered and the appropriate precautions taken so that their influence can be observed and analysed and the correct conclusions drawn. In this investigation there are many variables that will affect the terminal velocity of ball bearings as they pass through honey. the terminal velocity in this experiment will be measured using the velocity formula v=s/t, by measuring the distances the ball bearings travel and divide them by the time taken for them to pass through that distance (which is measured using the stop clock). So, in this Experiment, I will measure the viscosity of honey using a ball bearing with a known radius and mass, and honey with a known mass & volume. Submerged in a viscous fluid (in this case honey), those forcesīut once the object reaches terminal velocity, the forces acting on it The diagram on the right shows the 3 forces that act on an object Through the honey, and then researching the effects of radii against the terminalĪn object submerged in a fluid has got many forces acting on it, Intertek viscosity and rheology tests available vary according to the laboratory and location.Measuring the viscosity of honey using several ball bearings with known radiiĪnd masses, and honey with a known mass and volume. Intertek laboratories also conduct rheological analysis of samples.

Viscosity testing of polymers and plastics:

High Temperature, High Shear Viscosity:.

Saybolt Viscosity ASTM D445, ASTM D2161.

Viscosity testing of petroleum, fuels, lubricants: Intertek labs test the viscosity of oils, chemicals, solutions, polymers and other materials to ASTM and other industry standards. Intertek viscosity tests measures fluid flow properties, and are useful for product evaluation, research and quality control. Test the Viscosity of petroleum, oils, fuels, chemicals and more to ASTM Standards

How to test viscosity