Chemical Processes And Technology - Miele G 7883 Operating Instructions Manual

Chemical processes and technology

General notes
Problem
If seals, hoses and plastics in the lab
washer suffer damage they will not be
water-tight and will not function
correctly.
Heavy foaming during a programme
affects cleaning and rinsing results.
Foam escaping from the wash cabinet
can cause damage to the lab washer.
Cleaning processes cannot be
regulated and validated where there
has been a build-up of foam.
Corrosion to stainless steel in the wash
cabinet and to accessories can give
them a different appearance:
– Rust (red marks / discolouration),
– black marks / discolouration,
– white marks / discolouration (etched
surface).
Corrosive pitting can lead to the lab
washer not being water-tight.
Depending on application corrosion
can influence cleaning and rinsing
results (laboratory analysis) or cause
corrosion to stainless steel items in the
cabinet.
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How to resolve it
– Establish the cause of the damage
and rectify it.
See information regarding "Chemical
agents", "Soiling" and "Reaction
between chemical agents and soiling".
– Establish the cause of the foam and
rectify it.
– Check the process used regularly to
monitor foaming levels.
See information regarding "Chemical
agents", "Soiling" and "Reaction
between chemical agents and soiling".
– Establish the cause of the corrosion
and rectify it.
See information regarding "Chemical
agents", "Soiling" and "Reaction
between chemical agents and soiling".