CSC Newsroom

Replacement for Discontinued Fisher Tensiomat© Tensiometer

Written by Art Gatenby | Apr 29, 2011 9:59:00 PM


Merrifield, Va. – Apr. 29, 2011


CSC Scientific Announces Replacement for Discontinued Fisher Tensiomat© Tensiometer


CSC Scientific, a manufacturer and distributor of surface tension analysis products, announces a replacement for the now-discontinued Fischer Scientific Tensiomat© surface tension tensiometer. Any user who requires a new instrument or a repair of an existing instrument should contact us. The CSC Precision Tensiometer and Interfacial Tensiometer models are direct replacements.


After long deliberation, Fisher Scientific has discontinued its Tensiomat© surface tension tensiometer, which has been produced for decades.

CSC Scientific has produced tensiometers since the 1950s. These perform the same tests and are a direct replacement for the Tensiomat©. The CSC models are the called the Precision and Interfacial Tensi

ometers. The difference between the CSC tensiometers is:

Precision Tensiometer - Readings are obtained from an upward pull through the sample.

Interfacial Tensiometer – Readings can be obtained from an upward pull or a downward push

The CSC Interfacial Tensiometer is needed when calculating interfacial tension between a less-dense fluid and a heaver one located below the interface. The ring is rigidly attached to the measuring arm to obtain a downward measurement. We also recommend the Interfacial Tensiometer when the tested material is a thick liquid. This makes it easier to set up the ring below the liquid surface.

A key component of any of these instruments is the duNouy ring, which is a precision device made of a platinum-based alloy. The rings are manufactured utilizing special forming and welding techniques unique to this alloy and can be used with existing Fisher Tensiomat© units.

CSC Scientific has produced these rings for more than 50 years.

We offer long-time users service and repair of these discontinued Fisher Scientific Tensiomat© units and will do so as long as replacement parts are available. The duNouy rings are fragile and are frequently dropped, misshapen or broken. CSC Scientific has maintained a ring repair service for many years and will repair Fisher-supplied rings..

Either the CSC Precision or the CSC Interfacial Tensiometers can be used as direct replacements for the Tensiomat©.. Contact CSC Scientific to determine the correct tensiometer for your application via email or phone 703-876-4030.

These CSC Instruments are available from several of the laboratory supply dealers or directly from the CSC Scientific Company.


CSC Scientific Company specializes in the measurement of particle size, moisture and surface tension. Because of this specialization a prospect can get in depth experience-based advice on their measurement problems. For more information visit

Media Contact: Art Gatenby CSC Scientific Company, Inc. (703)876-4030,