Surfactants are used in many industrial sectors in order to effectively influence product performances. Consequently, the behaviour of those surfactants has to be examined and analyzed. The main characteristic of surfactants is their dynamic surface activity which means that surfactants diffuse to and
adsorb on to new developing surfaces and influence their surface tension. Due to the fact that the surface tension depends on the surfactant concentration, it can be determined and analyzed by measuring the surface tension.
Furthermore, the temperature of a liquid has an influence on the resulting surface tension as well. It is essential for many applications to know how fast the surfactants adsorp to newly build surfaces and how much the surface tension decreases after a short time. In addition, measuring the surface tension is used to analyse the critical micelle concentration (CMC) of a surfactant or surfactant mixture.