Viscometers
Viscometers measure the viscosity of a liquid, usually under one flow condition. In general, the fluid remains stationary and an object moves through it or the object remains stationary and a fluid moves past it. The drag caused by the relative motion of the fluid and a surface is measured. They can be classified as direct or reverse flow. There are various kinds of viscometer. The ones used in laboratories are often the capillary versions when the container is a vertical or U-shaped glass tube known as the Ostwald and Ubbelohde viscometers after their inventors. The falling sphere type has a sphere of known size/density descend through a stationary fluid. The Norcross viscometer is made up of a piston and cylinder assembly whilst the oscillating piston design uses a magnetically-influenced piston. Other types include the vibrational, quartz and rotational viscometers. Viscometers are an important piece of apparatus in laboratories which do quality and efficiency testing of fluids in areas such as the effects of a process, changes to formulas and ageing phenomena especially for food, beverage and personal care products. As viscosity affects coating performance, they are used in the paint industry to check batch consistency and quality control.
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AML Instruments Ltd
View company profileAML Instruments are a family run business offering instrumentation, UKAS ISO 17025 calibration, service, repair, spare parts and support for a wide range of instruments / test equipment used in a variety of industries and applications.
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Lab Unlimited UK
View company profileThe Carl Stuart Group was founded in 1984 by Stuart and Gillian Smith. From a small beginning our business has grown to encompass many services and products, covering different market sectors and geographical regions. The focus of our business, however, remains the same. We are a customer orientated company and strive to meet and exceed your expectations in everything we do.
As our portfolio grew we decided to present and promote our product and technical service offerings under distinct brands. The Laboratory instrumentation, consumables and technical & integration services are promoted under Lab Unlimited.
The Lab Unlimited product portfolio offers laboratory/analytical products from more than four hundred leading manufacturers. A substantial part of this offering is published on this very site. We also produce a printed catalogue that can be requested by emailing us.