Laboratory equipment for Viscosity Measurement

About Us

The Quality Control Laboratory Ltd based in East London is committed to providing the high quality and efficient service on each of our projects, no matter the size. Our experienced and professional staff will meet this aim by applying the latest technologies and sound business practices to provide effective assistance to all of our clients. With a results oriented approach, we make every effort to provide our clients with affordable solutions to meet specific project needs. For over forty years, we have had the opportunity of working with some of the largest and most respected firms and has provided services to both the private and public sector.

The following instruments can be Serviced and Calibrate:

  • BEVS  Instruments
  • All Types of Flow Cups

If you have any questions or wish to place an order, do not hesitate to contact us.

About Viscometers

Viscometers are precise instruments used to measure the viscosity (resistance of a fluid against shear or tensile stress) and flow of a fluid. However, it is worth noting that viscometers can only measure under one flow condition (ie. shear OR tensile). They are most commonly used in the quality control (QC) industry, where both Viscometers and Rheometers (a type of viscometer for measuring fluids with a higher viscosity – sometimes also known as plastometers) are used to measure anything from the viscosity of a new medicine to the viscosity of paint.

Choosing the right viscometer

The following is a brief guide to the types of viscometers, so as to help you make the right choice. More detailed information can be found throughout the site, and links will be provided to the additional information.

Types of Viscometers

Ubbelohde Viscometer (U-Tube Viscometers)

Also know as glass viscometers (or glass capillary viscometers), U-Tube viscometers are made up of a U-shaped glass tube that is held vertically in a temperature controlled bath. A similar viscometer is the ‘Falling Sphere Viscometer’, which is similar to the U-Tube version, but based around Stokes’ Law.

Rotational Viscometers

The popular rotational viscometer, uses the mechanical force of the torque required to turn an object in the fluid. There are two main types of the rotational viscometer, the ‘Cup and Bob’ and the ‘Cone and Plate’.

Vibrational Viscometers

Based on the Bendix instrument of the early 1950’s, the ‘Vibrational Viscometer’ operates by measuring the damping of an oscillating electromechanical resonator immersed in a fluid.

Falling Piston Viscometer

Oscillating Piston Viscometer

Bubble Viscometer

Micro-Slit Viscometers

Viscometer Calibration and Servicing

It is very important with viscometers to make sure they are calibrated correctly in order to achieve accurate results. Similarly with servicing, it is important to make sure your viscometer is regularly serviced, to maintain these accurate results.