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Lauda Ring/Plate-Tensiometer TD1C

Lauda Ring/Plate-Tensiometer TD1C

TD1 CEasy determination of surface & interfacial tension

The TD 1 C tensiometer works with Du Noüy ring and Wilhelmy plate according to international standards (DIN 53914, ISO 304, ASTM D971). Furthermore, the density, according to the Archimedes’ principle, as well as smaller weights can be measured due to a newly-developed, even more powerful forcemeasuring cell with a considerably enlarged measuring range. The tensiometer measuring table with the sample stage can be moved steadily by means of ergonomic adjusting screws, like a microscope, in order to lower the Wilhelmy plate to the sample surface or in order to determine the maximum force during the ring measurement.

By means of the high-resolution display of the remote Command control, the increase in wetting force during withdrawing of the ring can be followed and the maximum force can also be found without detaching the lamella. The value displayed in the maximum is automatically corrected according to Zuidema and Waters, and thus corresponds to the surface tension of the measured liquid in mN/m. At the touch of a button, the measured value and all parameters can be either saved or directly printed out on an optional protocol printer.

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