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5. Turn the rotation ring so that the “K” mark on the rotation ring is opposite the
“H” mark on the retaining ring. Insert the thrust washer and firmly screw the
clamping washer to the assembly chip. In the process, hold the retaining and
rotation rings firmly so that they do not twist against each other.
6. Place the hose on the inspection glass. Insert the adapter back into the TRI-
SON Rack.
Results
» The TRISON Rack is ready once again for the cleaning of rinsable MIS instru-
ments.
6.4 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 cavi-
tation, 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 prepara-
tions.
We recommend the following ultrasound preparations:
• TICKOPUR R 33,
• TICKOPUR R 30,
• TICKOPUR TR 7,
• TICKOMED 1,
• STAMMOPUR R,
• STAMMOPUR DR 8.
If none of these products are available, a neutral or mildly alkaline product that
does not destroy aluminium may be used. The product must be approved by the
manufacturer for use in ultrasonic baths.
Test results and documentation
