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.
Ace Glass, Inc. Cannon-Fenske viscometer, calibrated, size 200, 20-100centistokes
Cannon-Fenske viscometer, calibrated, size 200, 20-100centistokes
MSC MFG Tray ESD Tray, Fiberglass, 13-3/4 in Long, 10-5/8 in Wide, 1 in Deep
This ESD tray is constructed from fiberglass and is designed for safe handling and storage of static-sensitive components. It features exterior dimensions of 13-3/4 in long, 10-5/8 in wide, and 1 in deep, with interior bottom dimensions of 12 in long and 9.125 in wide. The black finish helps maintain a professional appearance in various work environments.
- Made from fiberglass for durability and reliable performance.
- Designed as an ESD tray to protect static-sensitive components from electrostatic discharge.
- Features exterior dimensions of 13-3/4 in long, 10-5/8 in wide, and 1 in deep.
- Provides interior bottom dimensions of 12 in long and 9.125 in wide for efficient storage.
- Comes in a black color.
MSC The Better Bungee Bungee Cord, Loop End, Overmolded Nylon Hook, Non-Load Rated
The Better Bungee Loop End Bungee Cord Tie Down is designed with an overmolded nylon hook and is non-load rated. This 30 in (76.2 cm) military green bungee cord is suitable for various securing tasks where a non-load rated tie down is appropriate.
- Loop end bungee cord tie down
- Overmolded nylon hook
- Non-load rated design
- 30 inch overall length
- Military green color
Sigma Aldrich Fine Chemicals Biosciences Proteomics Dynamic Range S
The Proteomics Dynamic Range Standard Set is produced from a mixture of 48 individual human source or human sequence recombinant proteins each of which has been selected to limit heterogeneous post-translational modifications (PTMs). The protein standard is formulated from 6 mixtures of 8 proteins to present a dynamic range of 5 orders of magnitude ranging from 50 pmoles to 500 amoles. Each protein has been quantitated by amino acid analysis (AAA) prior to formulation.
Enterprise Technology Solutions Mead Composition Book, College Ruled, 7-1/2"x9-3/4", 100 Sheets
Composition book contains college-ruled white paper. A class schedule printed on the inside cover makes the composition book ideal for students. Durable cover is secured with sewn binding for long life.
Bellco Glass, Inc. Lo/Profile Dual Pan Hot Shaker, 230V
Bellco’s new Dual Pan Low Profile Hot Shaker provides gentle, large orbit shaking motion combined with precise temperature control. Designed to be the perfect solution for incubation of electrophoretic gels and filter hybridization media, the Low Profile layout promotes easy access to the independent microprocessor driven temperature controller and reliable control of shaking speeds up to 75 oscillations per minute. The quiet brushless drive motor and repeatable, stable temperature settings from 5°C above ambient up to 99.9°C may be effectively used in most biochemical, chemical and microbiological applications.. MADE IN THE USA
Bellco Glass, Inc. OxyProbeﾓ DO Probe,12x420mm Broadley-James
The OxyProbe 12mm dissolved oxygen sensors offer the most rugged and versatile design for benchtop vessels. The compact profile saves space and will fit directly into any port with standard compression fittings or threads. The small diameter facilitates DO measurement in small volumes such as spinner flasks and bottles. The polarographic sensor utilizes a long silver anode and small cathode (per the industry standard), it also uses the same gas permeable silicone PTFEcomposite membrane. Reinforced with stainless steel mesh the OxyProbe withstands steam in place and caustic clean in place applications. FDA compliant O-Rings are on all product contact surfaces.
INTEGRA LIFE SCIENCES Crile-Wood Needle Holder Serrated 6 50/Box
Crile-Wood Needle Holder Serrated 6 50/Box
Ace Glass, Inc. Cannon-Fenske viscometer, calibrated, size 100, 3-15centistokes
Cannon-Fenske viscometer, calibrated, size 100, 3-15centistokes