The change of viscosity with temperature is very obvious, and the viscosity of the liquid will be greatly reduced when the temperature is increased, which is the opposite of the gas. Using the viscosity nomogram, when the viscosity of a liquid at a certain temperature is known, the viscosity of the liquid at another desired temperature can be obtained. The method is to find the corresponding position on the nomogram of the known viscosity and temperature values, and then connect them with a straight line to intersect with the middle axis; The intersection point is the desired viscosity value. Using this empirical method, approximate viscosity values at different temperatures can be obtained quickly and easily.
