Limitations On Aqueous Cleaners - HAVER & BOECKER USC 200 S Bedienungsanleitung

Cleaning media
8.2

Limitations on aqueous cleaners

Do not use aqueous cleaning media with pH values in the acid
range (pH < 7) directly in the ultrasonic tank if fluoride (Fˉ),
ATTENTION
chloride (Clˉ) or bromide (Brˉ) ions can be taken in by the
removed dirt or through the cleaning chemical. These can
destroy the stainless-steel tank by crevice corrosion within a
very short period of ultrasonic operation.
Acids and alkaline Other media which can destroy the stainless-steel tanks when
solutions
used in high concentrations or with high temperatures during
ultrasonic operation are: nitric acid, sulphuric acid, formic acid,
hydrofluoric acid (even diluted). (Completeness of list not
guaranteed.)
Risk of damage to the unit: do not use cleaning solutions
containing more than 0.5 mass % alkali (KOH and/or NaOH) in
an ultrasonic cleaning tank.
Entrainment of The above limitations for the use of chemicals in an ultrasonic
chemical substances bath also apply for the aforementioned chemicals when these
are brought into an aqueous (particularly distilled water) bath
through entrainment or from the removed dirt.
Acid-resistant tank For the ultrasonic treatment with the above mentioned media
use an acid-resistant tank (available as accessory equipment).
Disinfectants The limitations of use also apply to the standard cleaners and
disinfectants if these contain the above mentioned compounds.
Safety regulations Observe the safety warnings indicated by the manufacturer of
the chemicals (e.g. goggles, gloves, R and S phrases).
For queries please contact the manufacturer or your supplier.
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