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.
Bellco Glass, Inc. Impeller assembly for micro-carrier spinner flasks. Consist of magnet holder, silicone plug, magnet, and ptfe paddle. Impeller size: 500ml Paddle dimensions: 1" x 3"
Impeller assembly for micro-carrier spinner flasks. Consist of magnet holder, silicone plug, magnet, and ptfe paddle. Impeller size: 500ml Paddle dimensions: 1" x 3"
DC Scientific Glass Inc CROSS ARM VISCOMETER - SIZE 5
CROSS ARM VISCOMETER, SIZE 5, PROVIDED WITH ISO/IEC 17025:2017 CALIBRATION CERTIFICATE
Bellco Glass, Inc. The OxyProbe 12mm dissolved oxygen sensors offer the most rugged and versatile design for bench-top vessels the compact profile saves space and will fit directly into any port with standard compression fittings or pg 135 threads the small diameter facilit
The OxyProbe 12mm dissolved oxygen sensors offer the most rugged and versatile design for bench-top vessels the compact profile saves space and will fit directly into any port with standard compression fittings or pg 135 threads the small diameter facilit
Essendant GLASSESSFTYSTORMBK/CR
Face-flattering design appeals to a wide range of professionals High-quality polycarbonate lenses provide superior protection without hindering visual acuity Five-position ratchet-action temples make getting a proper fit quick and easy Lightweight nylon frame and non-slip rubber ear-piece grips help ensure comfortable day-long use Duramass coating protects against scratching Safety Glasses Style- Wraparound Frame Color- Black Frame Material- Nylon Lens Material- Polycarbonate
Ace Glass, Inc. Cannon-Fenske viscometer, calibrated, size 600, 4000-20000centistokes
Cannon-Fenske viscometer, calibrated, size 600, 4000-20000centistokes
Hach Company SC4500 Ctrl Claros 5x mA Out 1
SC4500 Controller-Claros-enabled-5x mA Output-1 digital Sensor-100-240 VAC-without power cordIncludes SC4500 Controller-Claros-enabled-with EU plug includes mounting hardware
PCE AMERICAS INC Viscometer with a repeatability of ±0.2% of the set measuring range
The rotary viscometer uses the mechanical resistance of any liquid to measure viscosity using rotational movement of a spindle. This results in a torque that is recognized by the rotary viscometer and converted into a viscosity value. With an accuracy of ± 1.0%, the rotary viscometer is a very precise measuring device despite the high measuring range of 10 … 2,000,000 cP (mPa*s).Viscosity measuring range: 10 … 2,000,000 cPAccuracy: ± 1% of full scale (with Newtonian liquid)Rotation speeds: 0.3, 0.6, 1.5, 3, 6, 12, 30, 60 rpmVarious viscosity units can be displayed (mPa*s, Pa*s, dPa*s, cP, P, cPs)
PCE AMERICAS INC Viscometer with a resolution 0.01 cP and repeatability ±0.5 %
Viscometer with LC display / Mains operation / Sample quantity 250 ... 400 ml /Measuring range 15 ... 100,000 cP / Adjustable speed of rotation /Simple operation / Spindle set L1 ... L4 included in delivery.The viscometer has a measuring range of 15 ... 100,000 cP. With an accuracy of <±2% of the range, the viscometer is a precise measuring device to determine the viscosity of a sample liquid. The viscosity is determined by the viscometer on the basis of an applied mechanical resistance that acts in the opposite direction to the rotational movement of a spindle. The viscometer can be operated with an adjustable speed in the range between 6… 60 RPM.
Ace Glass, Inc. Cannon-Fenske viscometer, calibrated, size 650, 9000-45000centistokes
Cannon-Fenske viscometer, calibrated, size 650, 9000-45000centistokes
Sigma Aldrich Fine Chemicals Biosciences CultispherR -S standard po10G
Macroporous gelatin-coated microcarrier beads. General purpose beads for anchorage-dependent cells.