Applications of the SITA pro line f10

The SITA pro line f10 is the world's first mobile tensiometer for measuring the dynamic surface tension of liquids. The tensiometer works by measuring bubble pressure. This is done by pumping air through a capillary into the liquid to be analyzed. The bubble pressure is proportional to the surface tension.

SITA pro line f10 is especially suitable for:

Detergent Manufacturers and Their Personnel: calibrating, optimizing and servicing the facilities of washing and rinsing processes.

Various products from detergent manufacturers are used in the stages of washing and rinsing. Owing to their know-how, personnel of the detergent manufacturers are often responsible for calibrating, optimizing and servicing the industrial laundry process. The consumption of detergent needs to be kept low while optimum cleaning is desired. This situation leads to low costs and low environmental impact. Usually, the concentration of detergent is measured by titration, a procedure which takes about 5 minutes and requires additional chemicals. By measuring with the SITA pro line f10 this procedure is minimized to 1 minute. The result is a considerable amount of saved time.

Comparison of Detergents

Plating and Surface Treatment Companies:

The surfactant concentration in the bath is responsible for the resulting quality of the coated surface (dense, shine). Because of its surface active characteristics, the surfactant influences the surface tension of the bath. The surfactant is washed out during the process. To know when and how much surfactant needs to be refilled, in some cases the surface tension of the bath is measured in a laboratory on a daily basis. Mostly the surfactants are refilled after a fixed schedule or by estimate. Determining the surfactant concentration by online surface tension measurement makes it possible to automatically tune the bath by dosing the appropriate amount of surfactant more often during the day, so that the bath keeps its quality. Taking samples to the laboratory is no longer necessary, which reduces laboratory times and health risks as well.

Surface Tension in Different Concentrations of Cleaning Baths

Monitoring the Concentration of Wetting Agents:

The concentration of wetting agents can be monitored by continuously measuring the surface tension. This is of importance in galvanic baths, the production of ceramic coatings and in the photo industries. Here, the concentration of the wetting agent has a direct impact on the quality of the coating. An indirect measurement of the concentration of wetting agent makes it possible to control the dosing of the wetting agent in galvanic baths.

Surface Tension of a Nickel bath
at different Concentrations of Wetting Agent

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