• Determining the effectiveness of wetting agents.
• Checking surfactant content in solutions below the critical micelle concentration (CMC).
• Validating tank clearance and cleaning in the food industry.
• Measuring interfacial tension for quality assurance and optimization of emulsifiers.
• Analyzing the aging status of oils according to ASTM D 971 and IEC 62961.

• Surface and interfacial tension using the ring and plate method.
• Surface tension and interfacial tension using the ring tear-off method.
• Measuring liquid density.
• Temperature control from -10 to 130 °C with external sensor measurement.

The Force Tensiometer K20 is a robust, semi-automatic instrument designed for precise measurement of surface and interfacial tension. It is ideal for routine quality assurance of surfactant solutions and interfacial processes, utilizing the ring and plate method for reliable results.

• Force Measurement: Maximum load of 50 g, resolution of 100 µg, and measurement rate of 5 Hz.
• Sample Stage: Travel distance of 90 mm, with a drive speed of 2.4 to 14 mm/min.
• Temperature Control: Range from -10 to 130 °C, extendable to -20 to 150 °C.
• Interfacial and Surface Tension: Range from 1 to 999 mN/m, resolution up to 0.01 mN/m.
• Liquid Density: Range from 1 to 2200 kg/m³, resolution of 1 kg/m³.

The instrument features easy manual operation of the sample stage and a large, illuminated sample chamber for quick sample positioning. Measurement programs automate the process, with adjustable speed and parameters for specific applications.

An optional thermostat jacket allows simulation of process conditions between -10 and 130 °C. An integral magnetic stirrer ensures sample homogeneity for dispersion testing.

Results and parameters can be transferred to optional software or printed directly, enhancing data management capabilities.

The instrument supports ASTM D 971 and IEC 62961 standards for measuring interfacial tension of insulating oils, with preset parameters for computer-independent measurements.