Viscosity Flow Cup Method

However the conditions in a simple flow.

Viscosity flow cup method. Viscosity flow cups viscosity flow cups are very easy to use instruments made of anodized aluminium with a stainless steel orifice for measuring the consistency of paints varnishes and similar products. Viscosity cups remain the most important quick and simple method to measure the consistency of fluids in the laboratory and in production. This standard is issued under the fixed designation d 1200. The number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.

The ford viscosity cup is a simple gravity device that permits the timed flow of a known volume of liquid passing through an orifice located at the bottom. As a rule the equations for getting viscosity from the flow time are empirically determined for each cup by way of calibration tests with viscosity reference. The measured kinematic viscosity is generally expressed in seconds s flow time. Under ideal conditions this rate of flow would be proportional to the kinematic viscosity expressed in stokes and centistokes that is dependent upon the specific gravity of the draining liquid.

If the standards stipulate conversion methods the flow time. And they are available in a range of designs in accordance with national and international standards with various orifice diameters to suit different viscosities. After making a measurement the flow cup particularly the nozzle must be carefully. Viscosity cups are however only suitable for lower viscosities and not for highly viscous substances such as pastes etc.

A flow cup is a cup of a specified size and volume with an overflow channel at the top and a hole of a defined size in the bottom. A number in parentheses indicates the year of. If a flow cup is used the principle works as described above but instead of exact capillary dimensions the volume of the cup and its outlet capillary need to be accurately defined. This precision din cup din viscosity flow cup is designed to measure the viscosity of sample liquids e g varnishes paints and related liquids and fluids.