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Dynamic viscosity measurement
+ infoDynamic viscosity measurement for laboratory and industrial applications
Dynamic viscosity measurement is essential for evaluating how liquids and semi-solid materials resist flow under applied force. Accurate viscosity data supports product development, quality control and process optimisation across a wide range of industries.
Fungilab provides complete dynamic viscosity measurement solutions based on precision rotational viscometers, temperature control systems and specialized accessories designed to deliver reliable, repeatable and traceable laboratory results.
Whether measuring low-viscosity liquids or highly viscous materials, Fungilab offers instruments adapted to routine laboratory testing as well as demanding research applications.
Our products
Viscolead Series
Viscolead ONE
Viscolead ADV
Accessories
LABORATORY DIVISION
Dynamic viscosity
Viscosity is part of the science of Rheology which quantifies the resistance materials give to changing shape.
Proper interpretation of viscosity data can reduce the rate of rejects while keeping production and formulation development costs to a minimum. Consistent product quality is ensured through proper viscosity measurements, either alone or in conjunction with compatible tests.
Dynamic viscosity testing can help with:
- Material characterization or “finger-printing”
- Standard testing methods to check for differences between batches
- Indirect way of measuring quality
- Product formulation
- Quality control
- Process control
- Design, optimization and operation of process equipment
Material characterization or “finger-printing”
Standard testing methods to check for differences between batches
Indirect way of measuring quality
Product formulation
Quality control
Process control
Design, optimization and operation of process equipment
Viscosity types
Dynamic viscosity
Centipoise (mPa*s)
Kinematic viscosity
Centistokes (mm2/sec)
Apparent viscosity
Centipoise (mPa*s)
Newton’s Law
According to Newton’s law, the viscosity of a fluid is constant. As shear rate changes, shear stress changes in proportion such that viscosity is constant. Common fluids that exhibit such behavior are:
Unfortunately for us, not all fluids follow Newton’s law. In fact, most fluids do not. For this reason, fluids are classified into two categories:
Rotational Viscometer
The viscosity is calculated from the measured torque and rotational speed, as well as the dimensions of the measuring geometry.
A fluid’s resistance to flow is measured by the torque it exerts on the rotating shaft of the viscometer.
Absolute viscosity: the measuring geometry fulfills certain requirements (which is the case of coaxial spindles).
Relative viscosity: the dimensions of the measuring geometry are not well defined.
Advantage
Flexibility in:
- Viscosity Range
- Temperature range
- Shear rate range
Application
For Newtonian and non-Newtonian substances and temperatures different from room temperature.
Professional solutions for dynamic viscosity measurement
Dynamic viscosity measurement determines a material's resistance to flow under shear conditions. Rotational viscometers perform this measurement by rotating a spindle within the sample while continuously measuring the resulting torque. This method provides accurate viscosity values for both Newtonian and non-Newtonian materials.
Dynamic viscosity testing plays a critical role in quality assurance, research and development, production control and formulation optimisation across industries such as food, pharmaceuticals, cosmetics, chemicals, paints, coatings, adhesives and petrochemicals.
Fungilab dynamic viscosity measurement systems
Fungilab offers a complete portfolio of dynamic viscometers covering routine laboratory measurements through to advanced research applications.
The Viscolead Series provides intuitive touchscreen operation and high measurement repeatability, while the V-Series delivers advanced connectivity, wireless operation and enhanced laboratory productivity.
Accessories for every measurement requirement
Different applications require different measuring configurations. Fungilab offers specialized accessories to expand the capabilities of its dynamic viscosity measurement systems.
- Small Sample Adapter (APM) for limited sample volumes.
- Low Viscosity Adapter (LCP) for very low-viscosity liquids.
- HELDAL Unit for highly viscous and non-flowing materials.
- Thermosphere for high-temperature viscosity measurements up to 300°C.
Temperature control and measurement accuracy
Since viscosity is highly temperature-dependent, precise thermal control is essential for obtaining reliable results. Fungilab supplies heating circulators and refrigerated circulators to maintain stable testing conditions.
Routine verification of measurement performance can be carried out using certified viscosity standard oils, allowing laboratories to verify instrument accuracy and maintain measurement traceability.
Applications of dynamic viscosity measurement
Dynamic viscosity measurement is widely used to monitor production consistency, evaluate raw materials, optimise formulations and ensure final product quality. It is an indispensable analytical technique in laboratories where reliable rheological data supports manufacturing decisions and product development.
Selecting the right viscosity measurement solution
The most appropriate system depends on the viscosity range, sample volume, temperature conditions, measurement precision and industry requirements. Fungilab offers complete dynamic viscosity measurement solutions designed to meet the needs of both routine quality control laboratories and advanced research facilities.
Frequently asked questions about the Viscolead ADV
What is dynamic viscosity measurement?
Dynamic viscosity measurement determines a material's resistance to flow under applied shear using instruments such as rotational viscometers.
Which instruments are used for dynamic viscosity measurement?
Rotational viscometers are the most commonly used instruments for measuring dynamic viscosity in laboratory and industrial applications.
Can Fungilab measure both Newtonian and non-Newtonian fluids?
Yes. Fungilab rotational viscometers are suitable for measuring both Newtonian and non-Newtonian materials using the appropriate spindle and measurement configuration.
Why is temperature control important during viscosity measurement?
Viscosity changes with temperature, making stable thermal conditions essential for obtaining accurate, repeatable and comparable results.
Can very small sample volumes be measured?
Yes. The Fungilab Small Sample Adapter (APM) allows accurate viscosity measurements using small sample volumes while maintaining excellent repeatability.
How is the accuracy of viscosity measurements verified?
Routine verification using certified viscosity standard oils helps confirm instrument performance and maintain laboratory measurement traceability.
Which industries require dynamic viscosity measurement?
Food, pharmaceutical, cosmetic, chemical, paint, coating, adhesive, petroleum and research laboratories all rely on dynamic viscosity measurements for quality control and product development.
Which Fungilab instrument is best for my application?
The best solution depends on the viscosity range, sample characteristics, temperature requirements and laboratory workflow. Fungilab offers instruments and accessories for both routine and advanced viscosity measurements.
