The liquid kinematic viscometer is a core instrument used to measure the viscosity of liquids. Its measurement principle is based on the quantitative correlation between the flow characteristics of liquids through specific pipelines/containers under gravity or external forces and viscosity. It is widely used in quality control and research and development in industries such as petroleum, chemical, pharmaceutical, and food.
The liquid kinematic viscometer has the following technical advantages compared to traditional viscosity measurement methods:
Quick measurement: able to complete viscosity measurement in a short period of time, improving work efficiency.
High precision: Adopting advanced measurement techniques and algorithms to ensure the accuracy of measurement results.
Wide measurement range: capable of measuring various liquids from low viscosity to high viscosity, meeting the needs of different industries.
Easy to operate: The instrument design is user-friendly, easy to operate, and reduces the threshold for use.
Precautions for use:
Sample pretreatment: The sample needs to be free of bubbles and impurities (bubbles can affect the flow rate, impurities may block the capillary tube), and if necessary, filter or let it stand for degassing;
Strict temperature control: Measurements must be taken at the specified temperature, and a temperature deviation of 0.1 ℃ may result in viscosity measurement errors exceeding 1%;
Instrument calibration: After new instrument or long-term use, it is necessary to calibrate the capillary constant or rotor coefficient with standard viscosity liquid to ensure accuracy;
Operating specifications: The capillary viscometer should be placed vertically (tilting can change the flow path and cause errors); The falling ball method requires ensuring that the ball settles along the axis of the pipe to avoid hitting the wall;
Cleaning and maintenance: Immediately clean the instrument with solvent after measurement, as residual samples may affect the next measurement (especially high viscosity samples that need to be soaked in hot solvents).