Surface Tension Tensiometer

CSC Cenco Scientific 70545000 Dual Direction Interfacial Tensiometer gives precise readings of both surface and interfacial tensions by the ring method to values reproducible to within 0.05 dyne/cm. This instrument is specified for determining interfacial tension of oil against water by the ring method in ASTM Method D-971 and solutions of surface-active agents in ASTM Method D-1331. It is also specified for testing synthetic rubber latices in ASTM Method D-1417 and determining the surface tension of industrial water and industrial wastewater in ATM Method D-1590. The graduated dial reads in both directions from zero. A double vernier is provided. The two scales and corresponding verniers have graduations and figures of different colors to indicate whether the measured force is upward or downward.

Measurement: apparent surface tension and interfacial tension
70535000 Measures surface tension between a liquid and air
70545000 Measures surface tension at the boundary of two liquids

Featuring:
~ RAPID MEASUREMENT: Ring method allows readings to be made in 15-30 seconds.
~ DIRECT READING: Circular scale is graduated in dynes/cm eliminating the need for mathmatical calculations.
~ REPRODUCIBLE RESULTS: Improved technique allows accurate readings to be reproduced within ±0.05 dyne/cm.
~ PORTABILITY: Compact unit comes with a carrying case for easy transport.
~ STABILITY: Unit is mounted on a cast tripod support with convenient leveling screws