Performing The Foil Test - BANDELIN SONOREX SUPER RK 31 Operating Manual

Checking the ultrasound effect
Check the effect of the ultrasound upon putting into service and at
regular intervals. A check every 3 months is recommended. See
chapter 6.3 Performing the foil test.
6.3

Performing the foil test

Before the first use and at regular intervals, e.g. every 3 months, a
foil test should be conducted. This serves to ensure the consistent
effect of the ultrasound. The frequency with which these tests are
carried out is your responsibility.
The foil test is a simple procedure to demonstrate the intensity and
distribution of cavitation in an ultrasonic bath. It involves stretching
aluminium foil over a foil test frame. This frame will be perforated
or destroyed to a certain degree by cavitation, depending on the
sonication time.
In order to compare the results, it is important for the conditions of
the foil test to always remain the same:
• Filling the oscillating tank to the filling level mark,
• Temperature of the sonication fluid,
• Degassing time,
• Frame positioning,
• Foil type (brand, thickness),
• Sonication time,
• Type and concentration of the ultrasound preparation.
Fluid for the foil test
In order to obtain a sufficiently strong cavitation effect, the foil test
also requires the surface tension of the water used to be reduced
using surfactant preparations.
We recommend the following ultrasound preparations:
• TICKOPUR R 33,
• TICKOPUR R 30,
• TICKOPUR TR 7,
• TICKOMED 1,
• STAMMOPUR R,
• STAMMOPUR DR 8.
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