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Safety Advice
Danger of burns! The digestion tubes and the inner zone of the heating block get hot!
Never touch the hot glasses or the area of the heating block around the digestion tubes with the
bare hands.
Danger of electric shock!
Always install all cables in such a way that they cannot come into contact with the hot inner zone
of the heating block; they could otherwise smoulder through! Always ensure that no liquids can
come into contact with cable connections or the interior of the heating block! Always withdraw
the mains plug before opening the unit! Repairs on electrical, electronic and mechanical modules
of this appliance may be performed only by authorized specialist staff.
Danger of injury in case of breakage of glass! Always adhere to your professional association's
regulations when handling glass parts!
Care is required when using and handling acids and alkalis! Danger of corrosive burns and
injuries! ! Adhere to the current Hazardous Substances Ordinance!
Hazard from toxic gases!
During the Kjeldahl digestion, vapours of sulfuric acid (and other toxic gases) are set free. They
could harm your health and damage the apparatus and your lab equipment.
Always perform digesting operations which can result in evolution of toxic or corrosive vapours
using a scrubber system! Place the digester and the scrubber in a fume cupboard.
Never operate the digestion unit in wet, humid or explosion‑endangered areas!
Maximum air humidity = 80%
Maximum temperature = 40° C
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