AGREE® - New gravimetric test method with nanobalance (QCM)


Determination of small amounts of non-volatile residues (µNVR) - practical, fast and economical

The damaging potential of film contaminants (oils, greases, fingerprints) is becoming increasingly important in manufacturing processes. The primary focus here is on organic residues. These contaminants often originate from production aids such as oils, greases, corrosion protection agents, cooling lubricants or cleaning agents. Residues of this type very quickly lead to clear defects in the subsequent manufacturing processes. For example, such contaminants prevent complete wetting with a coating layer or significantly reduce the adhesiveness of a contact surface.

The range of measurement techniques known to date extends from simple methods such as gravimetric determination of residues or contact angle measurement for determining surface tension, through IR spectroscopy for characterizing simple organics, to complex methods such as coupled gas chromatography-mass spectrometry. This variety of measurement techniques and methods has not facilitated specification and economical testing of filmic cleanliness. With the aim of selecting and introducing a uniform and practicable measurement method, the AdhäSa expert group, headed by the Fraunhofer Institute IPA, has developed the new AGREE® test method.

By participating in this expert group, CleanControlling has the new test method AGREE® at its disposal and can thus perform fast and economically reasonable component tests.

Detailed information about this new test method for filmic component cleanliness can be found here


AGREE® analysis instrument with nanobalance (QCM) and operator terminal (Source: Nägele Mechanik GmbH)