Sono Swiss SW Dura T Serie Manual De Istrucciones página 55

7.1 Restrictions concerning cleaning agents containing solvents
Explosive substances and flammable solvents
• marked according to EC Directives with symbols and R-phrases R 1 to R 9
• or E, F+, F,O or R 10, R 11 or R 12 for flammable substances must not be introduced into the stainless-steel tank of the ultrasonic unit
and exposed to ultrasonic irradiation.
Exception In accordance with the general occupational health and safety regulations, limited volumes of flammable liquids (max. 1 litre) can be exposed to
ultrasonic irradiation in an ultrasonic unit if the following conditions are met: If, with adequate external ventilation, these liquids are introduced in a separate
container (e.g. beaker) into the stainless-steel tank that is filled with a non-flammable liquid (water with a few drops of
detergent). If in doubt, contact the manufacturer or supplier.
7.2 Restrictions concerning aqueous cleaning agents
Do not use aqueous cleaning media in the acidic range (pH value below 7) directly in the stainless-steel tank if fluoride (F), chloride (Cl) or bromide (Br)
ions will be introduced from the dirt on the items being cleaned or from the cleaning agent. These will quickly destroy the stainless steel tank in ultrasonic
operation due to pitting corrosion.
Acids Other media that can corrode and destroy the stainless-steel tanks when used in high concentrations and/or at high temperatures during ultrasonic
operation include (but are not limited to): e.g. nitric acid, sulphuric acid, formic acid, hydrofluoric acid (even when diluted).
Exam- • Treatment with hydrochloric acid or hydrofluoric acid, or acid solution salts
ples
• Removal of fluxing agents containing fluoride, chloride or tetrafluoroborate from soldered metal parts or electronic components
• Decalcifying, in a solution containing citric acid, medical systems contaminated with, amongst others, physiological saline solution
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