Chemical processes and technology
45
Soiling
Problem
Solution
The following substances can damage
elastomers (hoses and seals) and plastics in
the machine:
– Oil, wax, aromatic and unsaturated
hydrocarbons,
– Emollients,
– Cosmetics, hygiene and skin care
products such as creams (analytical
applications).
– Depending on usage, wipe the lower door
seal on the machine periodically with a
lint-free cloth or sponge. Clean the wash
chamber and accessories without a load
using the
Regular
or
Extended
program.
– Use the
Regular
or
Extended
program and
additionally dispense powder cleaning
detergent on the door.
The following substances can lead to heavy
built-up of foam during washing and
rinsing:
– Some disinfection agents, dishwashing
detergents, etc.
– Reagents for analysis e.g. for microtiter
plates,
– Cosmetics, hygiene and skin care
products such as shampoos and creams
(analytical applications),
– Active foaming agents such as tensides.
– Thoroughly rinse items in water
beforehand.
– Select the
Extended
program (with a cold
or hot pre-wash).
– Depending on application use de-foaming
agents that do not contain silicone oils.
The following substances can cause
corrosion to stainless steel in the wash
cabinet and the accessories:
– Hydrochloric acid,
– Other substances containing chlorides
such as sodium chloride, etc.
– Concentrated sulfuric acid,
– Chromic acid,
– Particles of iron and shavings.
– Thoroughly rinse items in water
beforehand.
– Put the drip-dry items to be washed into
the wash carts, baskets, modules and
inserts and start a program as soon as
possible after placing in the machine.
