Rotational viscometer measurement in low and medium Viscosity products

Viscometer measures low viscosity and medium viscosity
　　Viscometer --- low viscosity:
　　adhesives (solvents), biological fluids, chemicals, cosmetics, milk products, hot wax, ink, fruit juice, latex, edible oil, petroleum, paint and Coatings, pharmaceuticals, photoresists, polymer solutions, rubber solutions, etc.
　　Viscometer --- medium viscosity:
　　adhesive (hot-soluble), asphalt, ceramic mud, butter, milk products, food, ink (screen printing), organic solution, paint, dyed paper coating, pulp, plastisol, Starch paste, surface coatings, varnishes, etc.
　　How to use the viscometer
　　1. The machine must be kept in a horizontal state.
　　2. Avoid air bubbles when the rotor is placed in the sample, otherwise the measured viscosity value will decrease. The way to avoid it is to put the rotor into the sample obliquely, and then install it The rotor, the rotor cannot touch the cup wall and the bottom of the cup, and the sample to be measured must not exceed the specified scale.
　　3. When measuring different samples, it is necessary to keep the rotor clean and dry. If there are other samples or water remaining on the rotor after cleaning, it will affect the accuracy of the measurement.
　　4. The maximum acidity (PH) cannot exceed 2. If the acidity is too high, a special rotor should be selected. When using ULA, the sample volume should be determined (only 16ml).
　　5. Select the viscosity standard liquid according to the measured viscosity range, and verify the instrument before each use of the viscometer or rheometer, or regularly calibrate it, so as to ensure the accuracy of the measurement. Newtonian fluids in various viscosity ranges can be provided Silicone oil or oil standard product with high precision, the accuracy is ±1%, and the recommended service life of viscosity standard liquid is one year from opening.
　　6. When connecting the rotor, use your left hand to gently lift and pinch the arbor (on the host), and rotate the rotor with your right hand. This operation is to protect the arbor and hairspring inside the fuselage, which can prolong the service life of the instrument.
　　7. The value should be selected when the value is relatively stable, otherwise there will be a large error in the obtained value.