Viscometers
Viscometers
Instruments used to measure the viscosity of a fluid; available in a variety of configurations.
Viscometers or viscosimeters are important to many industries, including the adhesive, biotech, chemical, food, paint, petroleum, and pharmaceutical industries.
What Is a Viscometer?
Viscometers are instruments used to measure viscosity, the internal friction of the layers of a liquid in motion. An example is the slower flow of syrup from a container — syrup is more viscous than water.
How Is Viscosity Measured?
In general, viscometers move an object through a stationary fluid or move the fluid past a stationary object to measure the friction between the fluid and the object or surface. Viscometers measure using a single flow condition.
What Are the Different Types of Viscometers?
- Glass capillary viscometers or Ostwald or Ubbelohde viscometers consist of a U-shaped glass tube held vertically in a controlled temperature bath. Liquid is drawn by suction into the upper bulb and allowed to flow down into the lower bulb. You calculate viscosity by measuring the amount of time it takes for the liquid to move between two marks.
- Falling ball viscometers measure the time it takes for a sphere of a known size and density to descend through a stationary liquid. This can be done electronically for opaque fluids.
- Rotational viscometers use the concept of torque to measure the effort required to turn a disk or bob in a fluid. Rotating bobs are more common, rotating cups reduce the likelihood of vortex formation, and "cone and plate" viscometers create a constant shear rate at any speed.
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Filtered Search Results
SI Analytics™ Ubbelohde ASTM Viscometer
Determine absolute and relative kinematic viscosity of liquids with Newtonian flow behavior. SI Analytics™ Ubbelohde ASTM Viscometer includes ring marks to ensure that they can be checked by means of manual measurements.
ASTM Numbers | D 446 |
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Product Type | Viscometer |
Certifications/Compliance | ISO/DIS 3105, ASTM D 2515, ASTM D 446 |
For Use With (Application) | Manual Measurements and Automatic Measurements |
Calibrated | Yes |
SI Analytics™ Ubbelohde Viscometer (ASTM)
Ubbelohde viscometers are calibrated for automatic measurements
SI Analytics™ Ubbelohde Viscometers (ASTM)
SI Analytics™ Ubbelohde Viscometers (ASTM) feature a suspended ball level for determination of absolute and relative kinematic viscosity of liquids with Newtonian flow behavior.
Poulten Selfe™ Ubbelohde Suspended-Level Viscometers
Suitable for transparent liquids. With UKAS certificate of calibration
ASTM Numbers | D445-IP71, D446 |
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Product Type | Ubbelohde Suspended-Level Viscometer |
Volume (Metric) | 18 mL |
Certifications/Compliance | D446 |
Paragon Scientific™ Cannon-Fenske Opaque Viscometer for Transparent and Opaque Liquids (UKAS ISO 17025 certified)
For the determination of kinematic viscosity of transparent and opaque Newtonian liquids according to ASTM D445, ISO 3104 and IP 71 Section 1. Low viscosity aids dissipation of air bubbles which can lead to detection problems in automatic systems and optimize bath stability and uniformity.
Includes | UKAS ISO 17025 calibration |
---|---|
ASTM Numbers | D 445, D 446 |
Certifications/Compliance | ASTM D445, ISO 3104 and IP 71 Section 1 |
Calibrated | Yes |
Paragon Scientific™ BS/U/M Miniature Viscometer for Transparent Liquids
For the determination of kinematic viscosity of transparent Newtonian liquids according to ASTM D445, ISO 3104 and IP 71 Section 1. Low viscosity aids dissipation of air bubbles which can lead to detection problems in automatic systems and optimize bath stability and uniformity.
ASTM Numbers | D 445, D 446 |
---|---|
Certifications/Compliance | ASTM D 445, D 446 and ISO 3104, 3105 |
Calibrated | No |
Paragon Scientific™ BS/IP/SL(S) Viscometer for Transparent Liquids
For the determination of kinematic viscosity of transparent Newtonian liquids according to ASTM D445, ISO 3104 and IP 71 Section 1. Low viscosity aids dissipation of air bubbles which can lead to detection problems in automatic systems and optimize bath stability and uniformity.
ASTM Numbers | D 445, D 446 |
---|---|
Certifications/Compliance | ASTM D 445, D 446 and ISO 3104, 3105 |
Calibrated | No |
Paragon Scientific™ Zeitfuchs Cross-Arm Viscometer for Transparent and Opaque Liquids
For the determination of kinematic viscosity of transparent and opaque Newtonian liquids according to ASTM D445, ISO 3104 and IP 71 Section 1. Low viscosity aids dissipation of air bubbles which can lead to detection problems in automatic systems and optimize bath stability and uniformity.
ASTM Numbers | D 445, D 446 |
---|---|
Certifications/Compliance | ASTM D 445, D 446 and ISO 3104, 3105 |
Calibrated | No |
Paragon Scientific™ BS/IP/RF U-Tube Reverse Flow for Transparent and Opaque Liquids
For the determination of kinematic viscosity of transparent and opaque Newtonian liquids according to ASTM D445, ISO 3104 and IP 71 Section 1. Low viscosity aids dissipation of air bubbles which can lead to detection problems in automatic systems and optimize bath stability and uniformity.
ASTM Numbers | D 445, D 446 |
---|---|
Certifications/Compliance | ASTM D 445, D 446 and ISO 3104, 3105 |
Calibrated | No |
Paragon Scientific™ Cannon-Fenske Opaque Viscometer for Transparent and Opaque Liquids
For the determination of kinematic viscosity of transparent and opaque Newtonian liquids according to ASTM D445, ISO 3104 and IP 71 Section 1. Low viscosity aids dissipation of air bubbles which can lead to detection problems in automatic systems and optimize bath stability and uniformity.
ASTM Numbers | D 445, D 446 |
---|---|
Certifications/Compliance | ASTM D445, ISO 3104 and IP 71 Section 1 |
Calibrated | No |
Paragon Scientific™ Ubbelohde Viscometer for Tranparent Liquids
For the determination of kinematic viscosity of transparent Newtonian liquids according to ASTM D445, ISO 3104 and IP 71 Section 1. Low viscosity aids dissipation of air bubbles which can lead to detection problems in automatic systems and optimize bath stability and uniformity.
ASTM Numbers | D 445, D 446 |
---|---|
Certifications/Compliance | ASTM D 445, D 446 and ISO 3104, 3105 |
Calibrated | No |
Paragon Scientific™ BS/U-tube Viscometer for Transparent Liquids
For the determination of kinematic viscosity of transparent Newtonian liquids according to ASTM D445, ISO 3104 and IP 71 Section 1. Low viscosity aids dissipation of air bubbles which can lead to detection problems in automatic systems and optimize bath stability and uniformity.
ASTM Numbers | D 445, D 446 |
---|---|
Certifications/Compliance | ASTM D 445, D 446 and ISO 3104, 3105 |
Calibrated | No |
Paragon Scientific™ BS/IP/SL Viscometer for Transparent Liquids (UKAS ISO 17025 certified)
For the determination of kinematic viscosity of transparent Newtonian liquids according to ASTM D445, ISO 3104 and IP 71 Section 1. Low viscosity aids dissipation of air bubbles which can lead to detection problems in automatic systems and optimize bath stability and uniformity.
Includes | UKAS ISO 17025 calibration |
---|---|
ASTM Numbers | D 445, D 446 |
Certifications/Compliance | ASTM D 445, D 446 and ISO 3104, 3105 |
Calibrated | Yes |
Paragon Scientific™ Zeitfuchs Cross-Arm Viscometer for Transparent and Opaque Liquids (UKAS ISO 17025 certified)
For the determination of kinematic viscosity of transparent and opaque Newtonian liquids according to ASTM D445, ISO 3104 and IP 71 Section 1. Low viscosity aids dissipation of air bubbles which can lead to detection problems in automatic systems and optimize bath stability and uniformity.
Includes | UKAS ISO 17025 calibration |
---|---|
ASTM Numbers | D 445, D 446 |
Certifications/Compliance | ASTM D 445, D 446 and ISO 3104, 3105 |
Calibrated | Yes |
Paragon Scientific™ BS/IP/MSL Viscometer for Transparent Liquids (UKAS ISO 17025 certified)
For the determination of kinematic viscosity of transparent Newtonian liquids according to ASTM D445, ISO 3104 and IP 71 Section 1. Low viscosity aids dissipation of air bubbles which can lead to detection problems in automatic systems and optimize bath stability and uniformity.
Includes | UKAS ISO 17025 calibration |
---|---|
ASTM Numbers | D 445, D 446 |
Certifications/Compliance | ASTM D 445, D 446 and ISO 3104, 3105 |
Calibrated | Yes |