Cleaning media
© Elma GmbH & Co KG
BA/X-tra/0908
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6.2
Limitations on aqueous cleaners
Risk of damage to the transducer tank!
Do not use acid cleaners (pH value below 7) directly in the
stainless-steel tank if the items to be cleaned carry
contaminations with halogenides (fluorides, chlorides or
bromides).
The same applies to salt solutions (NaCl).
ATTENTION
We recommend to use the cleaning media listed in section 6.
The stainless-steel tank can be destroyed by crevice corrosion
within a very short period. Such substances can be contained in
household cleaners.
Other media which can destroy the stainless-steel tanks when
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.)
Acids and alkaline
solutions
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.
The above limitations for the use of chemicals in an ultrasonic
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.
Entrainment of
chemical substances
For the ultrasonic treatment with the above mentioned media
use an acid-resistant tank (available as accessory equipment).
Acid-resistant tank
The limitations of use also apply to the standard cleaners and
disinfectants if these contain the above mentioned compounds.
Disinfectants
Observe the safety warnings indicated by the manufacturer of
the chemicals (e.g. goggles, gloves, R and S phrases).
Safety regulations
For queries please contact the manufacturer or your supplier.
6.3
List of recommended cleaning media
Elma has a large range of suitable cleaning products developed
by chemical engineers in the Elma laboratory. Please contact
your supplier to find the most suitable cleaning chemical for
your application.
The organic detergents contained in the elma clean cleaning
concentrates are biodegradable. Product informations and
safety data sheets are available from the manufacturer.
Environment –
friendly products
