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How to clean the viscometer rotor

1. The measuring rotor (including the outer cylinder) should be clean and free of dirt. Generally, it should be cleaned in time after measurement, especially after measuring paint and adhesives. Pay attention to the cleaning method, soak it in a suitable organic solvent, and never use a metal knife to scrape hard, because serious scratches on the rotor surface of the viscometer will cause deviations in measurement results.

2. The matching between the viscometer manufacturer’s rotor and the outer cylinder
For the dual-cylinder rotational viscometer, it is necessary to read the instrument manual carefully. Different rotors match different outer cylinders, otherwise the measurement results will deviate greatly. For a single-cylinder rotary viscometer, in principle, the outer cylinder radius is required to be infinite, and the actual measurement requires that the inner diameter of the outer cylinder, that is, the measuring container, is not less than a certain size.

3. Viscometer manufacturers require that the diameter of the beaker or straight container used for measurement is not less than 70mm. Experiments have proved that, especially when the No. 1 rotor is used, if the inner diameter of the container is too small, it will cause a large measurement error.

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