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Maintenance
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Fluid for the foil test
To achieve sufficiently strong cavitation, the interfacial tension of
the water used needs to be reduced for the foil test with the aid of
agents containing surfactant.
We recommend the following ultrasound agents:
• TICKOPUR R 33
• TICKOPUR R 30
• TICKOPUR TR 7
• TICKOMED 1
• STAMMOPUR R
• STAMMOPUR DR 8
If none of these agents are available, a neutral or mild alkaline
agent that does not destroy aluminium should be used. The agent
needs to be approved by the manufacturer for use in ultrasonic
baths.
Test result and documentation
Using consistent test conditions, the test result should be assessed
according to the perforated surface of the foils. The perforated sur-
faces of the foils should always have roughly the same spread and
distribution – they are never congruent. A constant process check,
e.g. when reprocessing medical devices, is only possible with regu-
lar foil tests.
You can download a documentation template for
documenting the test results via this link:
https://bandelin.com/folientest/
You will also find a video showing the application.
Furthermore, the foil sheets can be archived in a
suitable way (scan, photo, etc.). Then you will be able to compare
the foil sheets whenever necessary.
