The Ubbelohde viscometer is a special apparatus for determining how thick or thin a liquid is, what we refer to as its viscosity. It helps scientists and engineers predict how fluids will act in various scenarios. The “Ubbelohde viscometer constant” is a factor of which makes us more knowledgeable of how the viscometer functions. Instead, we want to know this constant so that if we do use the Ubbelohde viscometer, our measurements are accurate. This is particularly crucial to have in some industries where the quality of liquids is incredibly important, such as food and drink, oil and gas or chemicals. Here at ZONWON, quality is what we have always been concerned with and this concept further extends to our instruments/devices such as Viscometers.