Model: K681 Interfacial Tension Tester

Measures the interfacial tension of oil against water.

Measures the surface tension of various liquids, including oil, ink, soap, detergent, pharmaceutical compounds, adhesives and a wide range of coatings.

Conforms to ASTM D971 and ISO 6295. CE Mark.


Du Noüy Platinum Ring method measurements;

Microprocessor control;

Auto-measuring, auto-printing etc.;

Color large LCD display.

Technical specification

Measuring range of insulating oils: 5 - 100mN/m

Measuring range of other liquids: 5 - 200mN/m

Sensitivity: 0.1mN/m

Accuracy: 0.3mN/m

Resolution: 0.1mN/m

Repeatibility: 0.3%

Ambient temperature: 5°C - 40°C (typically 25°C)

Relative humidity: 20% - 75%

Power supply: AC 220V, 50Hz

Dimensions: 270 x 190 x 380mm

Net weight : 9kg

If you would like to discuss your requirements for this product further, please email us at or use our enquiry form.