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Low Viscosity Adapter (LCP)
+ infoLow Viscosity Adapter for precise low-viscosity measurements
The Low Viscosity Adapter (LCP) is a specialized accessory for Fungilab rotational viscometers designed to deliver highly accurate viscosity measurements of low-viscosity liquids using small sample volumes.
Its concentric cylinder measuring system improves measurement sensitivity and repeatability, making it ideal for laboratories working with fluids that cannot be measured accurately using standard spindle configurations.
The LCP is widely used in pharmaceutical, cosmetic, chemical, food and research laboratories requiring reliable viscosity determination of low-viscosity products.
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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.
High-precision viscosity measurements for low-viscosity fluids
The Low Viscosity Adapter (LCP) has been developed to extend the measurement capabilities of Fungilab rotational viscometers when testing liquids with very low viscosity. By using a concentric cylinder geometry, the LCP increases measurement sensitivity while ensuring excellent repeatability and accuracy.
This accessory is particularly suitable for quality control laboratories, formulation development and research applications where precise viscosity measurements are required using limited sample volumes.
How the Low Viscosity Adapter works
The LCP consists of a precision cylindrical measuring chamber and spindle specifically designed to generate stable shear conditions for low-viscosity liquids. This geometry reduces measurement uncertainty compared with conventional spindle systems and provides highly reproducible results.
Typical applications
- Pharmaceutical solutions.
- Cosmetic lotions.
- Beverages.
- Liquid food products.
- Inks.
- Solvents.
- Chemical formulations.
- Research samples.
Compatible Fungilab viscometers
The Low Viscosity Adapter is compatible with several Fungilab rotational viscometers, including the Viscolead Series and the V-Series, allowing laboratories to extend their measurement capabilities for low-viscosity fluids.
Complementary accessories
Fungilab also offers additional accessories for specialized viscosity measurements, including the Small Sample Adapter (APM) for reduced sample volumes, the HELDAL Unit for highly viscous materials and the Thermosphere for high-temperature applications.
Temperature-controlled measurements
For maximum measurement accuracy, the LCP can be used together with Fungilab heating circulators and refrigerated circulators, ensuring stable thermal conditions throughout the viscosity test.
Instrument verification
Routine verification with certified viscosity standard oils helps maintain accurate, repeatable and traceable viscosity measurements in accordance with laboratory quality procedures.
Main advantages
- High sensitivity for low-viscosity liquids.
- Excellent measurement repeatability.
- Small sample volume requirements.
- Concentric cylinder measuring geometry.
- Compatible with multiple Fungilab rotational viscometers.
- Ideal for laboratory quality control and research.
Frequently asked questions about the Viscolead ADV
What is the Low Viscosity Adapter (LCP)?
The Low Viscosity Adapter is a concentric cylinder accessory designed for Fungilab rotational viscometers to accurately measure low-viscosity liquids.
Why use a Low Viscosity Adapter?
It provides greater measurement sensitivity, improved repeatability and higher accuracy when testing low-viscosity fluids compared with standard spindle configurations.
Which products can be measured with the LCP?
The adapter is suitable for pharmaceutical solutions, beverages, cosmetic lotions, inks, solvents, food products and other low-viscosity liquids.
Which Fungilab viscometers are compatible with the LCP?
The Low Viscosity Adapter is compatible with several Fungilab rotational viscometers, including the Viscolead Series and V-Series.
Does the LCP require temperature control?
For maximum accuracy, measurements should be performed under controlled temperature conditions using suitable heating or refrigerated circulators.
How much sample is required?
The LCP is designed to perform accurate viscosity measurements using relatively small sample volumes compared with conventional measuring systems.
How can the measurement system be verified?
Routine verification using certified viscosity standard oils helps ensure accurate, repeatable and traceable laboratory measurements.
What are the main advantages of the LCP?
The Low Viscosity Adapter offers excellent sensitivity, high repeatability, reduced sample volume requirements and reliable measurements for low-viscosity liquids.
