Our measuring methods

Below you will find a list of the measuring methods which we have tried, tested and developed over a long period.

Tensiometric measuring methods

  • Static surface and interfacial tension measurements using the Wilhelmy plate method and the Du Noüy ring method
  • Determination of critical micelle concentration (CMC) and critical aggregation constant (CAC)
  • Measurement of dynamic surface tension using the bubble pressure method
  • Measurement of dynamic interfacial tension using the drop volume method
  • Measurement of contact angle on flat surfaces using the Wilhelmy plate method and on powdery and fibrous samples using the Washburn sorption method
  • Measurement of contact angle on single fibers for characterizing wetting
  • Determination of the surface free energy of powders, fibers, fabrics and flat solids based on the contact angle

Drop shape analysis measuring methods

  • Measurement of the contact angle on non-porous and porous solids in the form of static or dynamic measurements or as a function of time (e.g. in adsorption processes)
  • Determination of the surface free energy of non-porous and porous solids based on contact angle measurements
  • Determination of the polar and the dispersive fractions of the surface free energy
  • Determination of the work of adhesion for characterizing adhesion

Foam analysis

  • Characterization of the foamability of liquids and the foam stability during foaming and decay with different liquids
  • Determination of the liquid content of the foam
  • Optical analysis of the foam structure

KRÜSS GmbH - Application lab

Borsteler Chaussee 85,
22453 Hamburg, Germany

Phone: +49 40 514401 - 0
Fax: +49 40 514401 - 98

Email: application@kruss.de