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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Risultati della ricerca filtrata
SI Analytics™ Viscometro Ubbelohde
Determine absolute and relative kinematic viscosity of liquids with Newtonian flow behavior. SI Analytics™ Ubbelohde Viscometer includes ring marks to ensure that they can be checked by means of manual measurements.
Volume (sistema metrico) | 15 to 20 mL |
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Product Type | Viscometer |
Da utilizzare con (applicazione) | For Determination of Absolute and Relative Kinematic Viscosity of Liquids With Newtonian Flow Behavior |
Include | Ring Marks |
Certificazione/Conformità | DIN 51 562 Part 1, ISO/DIS 3105 (BS-IP-SL) |
Calibrated | Yes |
IKA™ ROTAVISC SBS hi-vi I Complete
Greener Choice Product
This product offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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This product offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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The SBS (Steel Ball Bearing, Suspended) rotational viscometers extend a large part of the application spectrum of our IKA ROTAVISC device family.
IKA™ Rotavisc me-vi Complete Viscometer Package
Greener Choice Product
This product offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
Learn More About the Greener Choice Program
This product offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
Learn More About the Greener Choice Program
Rotation Viscosimeter Packages
Poulten Selfe™ U-Tube Viscometer
Suitable for transparent liquids. With UKAS certificate of calibration
Volume (sistema metrico) | 18 mL |
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Product Type | U-Tube Viscometer |
Certificazione/Conformità | UKAS, ISO 9000 |
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.
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Product Type | Viscometer |
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Da utilizzare con (applicazione) | Manual Measurements and Automatic Measurements |
Numeri ASTM | D 446 |
Certificazione/Conformità | ISO/DIS 3105, ASTM D 2515, ASTM D 446 |
Calibrated | Yes |
SI Analytics™ Ubbelohde Viscometer for Dilution Viscometry
Determine the limit viscosity number of polymers. SI Analytics™ Ubbelohde Viscometer for Dilution Viscometry includes ring marks to ensure that they can be checked by means of manual measurements.
SI Analytics™ Viscometro Ubbelohde manuale
Determine absolute and relative kinematic viscosity of liquids with Newtonian flow behavior. SI Analytics™ Manual Ubbelohde Viscometer includes ring marks to ensure that they can be checked by means of manual measurements.
Volume (sistema metrico) | 15 to 25 mL |
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Product Type | Viscosimetro |
Da utilizzare con (applicazione) | Per la determinazione della viscosità cinematica assoluta e relative di liquidi con comportamento del flusso newtoniano |
Descrizione | 290mm Long |
Include | Contrassegni ad anello |
Certificazione/Conformità | DIN 51 562 Parte 1, ISO/DIS 3105 (BS-IP-SL) |
Calibrated | Sì |
SI Analytics™ Cannon-Fenske Routine Viscometer
Determine absolute and relative kinematic viscosity of liquids with Newtonian flow behavior. SI Analytics™ Cannon-Fenske Routine Viscometer includes three ring marks since they can only be checked by means of manual measurements.
SI Analytics™ Micro Ubbelohde Viscometer for Dilution Viscometry
Determine the limit viscosity number of polymers. SI Analytics™ Micro Ubbelohde Viscometer for Dilution Viscometry includes ring marks to ensure that they can be checked by means of manual measurements.
SI Analytics™ Cannon-Fenske Reverse Flow Viscometers
Reverse flow viscometers are calibrated for manual measurement
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.
SI Analytics™ Micro-Ostwald Viscometer
SI Analytics™ Micro-Ostwald Viscometer is suitable for measuremnts of small liquid quantities even with extreme formation of foam.
SI Analytics™ Ubbelohde Viscometers with Additional Tubes
SI Analytics™ Ubbelohde Viscometers with Additional Tubes feature a suspended ball level for determination of absolute and relative kinematic viscosity of liquids with Newtonian flow behavior.
SI Analytics™ Ostwald Viscometer
SI Analytics™ Ostwald Viscometer for determination of absolute and relative kinematic viscosity of liquids with Newtonian flow behavior.
SI Analytics™ Cannon-Fenske Reverse Flow Viscometer
Determine absolute and relative kinematic viscosity of liquids with Newtonian flow behavior. SI Analytics™ Cannon-Fenske Reverse Flow Viscometer includes three ring marks since they can only be checked by means of manual measurements.
Volume (sistema metrico) | 12 mL |
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Product Type | Viscometer |
Da utilizzare con (applicazione) | Only for manual measurement |
Include | Ring Marks and 2 Constants |
Numeri ASTM | D 446 |
Certificazione/Conformità | ISO/DIS 3105, ASTMD 2515, ASTM D 446, NF T 60 - 100 |
Calibrated | Yes |
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