What is glass capillary viscometer?
A capillary viscometer is an instrument used to measure the viscosity, or thickness, of a liquid by measuring how long it takes the liquid to flow through a small-diameter tube, or capillary.
How does a glass capillary viscometer work?
Capillary viscometers utilize a U-shaped glass tube with bulbs at either end—one higher than the other. The fluid’s viscometry is related to how long a defined quantity of fluid takes to pass a defined distance through the tube (of a defined diameter).
What are advantages for Ubbelohde viscometer?
A Ubbelohde type viscometer or suspended-level viscometer is a measuring instrument which uses a capillary based method of measuring viscosity. The advantage of this instrument is that the values obtained are independent of the concentration.
What is the difference between Ostwald and Ubbelohde viscometers?
Ostwald Viscometer and Ubbelohde viscometer are two such instruments. The key difference between Ostwald and Ubbelohde viscometers is that Ostwald Viscometer is suitable for the measurement of low to moderate viscosity of liquids whereas Ubbelohde viscometer is suitable for the measurement of high viscosity of liquids.
What are the examples of capillary viscometer?
Usage Examples Capillary viscometers are used to measure the viscosity of a wide range of diverse fluids. Common examples include petroleum products, lubricants, adhesives, and sealants.
How do you pronounce Ubbelohde viscometer?
Phonetic spelling of Ubbelohde
- ubbe-lo-hde. Patricia Daugherty.
- Ubbe-lo-hde.
- Ub-belo-hde. Jena Crist.
What is Brookfield viscometer?
The Brookfield Dial Reading Viscometer measures fluid viscosity at given shear rates. The Viscometer is able to measure over a number of ranges since, for a given spring deflection, the actual viscosity is proportional to the spindle speed and is related to the spindle’s size and shape.
What capillary viscometer is used for?
A viscometer (also called viscosimeter) is an instrument used to measure the viscosity of a fluid.
What can Ubbelohde viscometers be used for?
Ubbelohde Viscometers are used to determine kinematic viscosity of transparent Newtonian liquids. Sample volume: aprox. 15 ml. Precision: ±0.2%. *Fungilab offers many types of glass capillary viscometers that are not listed in our catalog. We can also manufacture glass capillary viscometers with customer-specified constants.
Are there glass capillary viscometers that fungilab makes?
*Fungilab offers many types of glass capillary viscometers that are not listed in our catalog. We can also manufacture glass capillary viscometers with customer-specified constants. Viscometers with special constants, added temps, and before/after data are available by special order. For further information contact Fungilab.
How are suspended level viscometers used to measure viscosity?
Suspended level instrument for measurement of kinematic viscosity. Cannon™-Manning type viscometer tubes for measuring viscosities of highly viscous materials such as asphalt cement at 60°C (140°F) according to ASTM™ D 2171. For measuring kinematic viscosity of small samples of transparent Newtonian liquids according to ASTM D 445 and ISO 3104.
Do you need Cali bration certificate for capillary viscometer?
All capillary viscometers are supplied with the cali- bration certificate issued in accordance with the conditions of accreditation granted by a National Metrological Register which has assessed the measurement capability of the laboratory, the test uncertainty and its traceability to recognized international standards UKAS.