Miele PG 8527 Operating Instructions Manual page 40

Chemical processes and technology
Soiling
Problem
The following substances can lead to a
heavy build-up of foam during washing
and rinsing:
– some disinfecting agents and
dishwashing detergents,
– reagents for analysis e.g. for
microtiter plates,
– cosmetics, hygiene and care
products such as shampoos and
creams (analytical applications),
– active foaming agents such as
tensides.
The following substances cause
corrosion to stainless steel in the wash
cabinet and on accessories:
– hydrochloric acid,
– other substances containing
chlorides such as sodium chloride
etc.,
– concentrated sulphuric acid,
– chromic acid,
– particles of iron and swarf.
40
How to resolve it
– Thoroughly rinse items in water
beforehand.
– Select a cleaning programme with at
least one short pre-rinse in cold or
hot water.
– Depending on application use
de-foaming agents that do not
contain silicone oils.
– Thoroughly rinse items in water
beforehand.
– Place items drip dried into mobile
units, baskets and inserts and then
place these in the wash cabinet.