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Safety
The following pollutants are used:
3.7 Signage
The following symbols and information signs can be found in the work area. They refer
to their immediate surroundings.
i
Note: The identification and placement of warning labels are included in the manual. The
laboratory supervisor is responsible for ensuring that all the warning labels are main-
tained in their proper place any time that the device is used.
Electrical Voltage
Helium inert gas Helium inert gas may cause suffocation at high concentra-
tions. Disposal of the empty gas cylinders must be performed
by a specialized disposal company.
Nitrogen gas Nitrogen gas may cause suffocation at high concentrations.
Disposal of the empty gas cylinders must be performed by a
specialized disposal company.
Coolants When released, coolants develop decomposition products
which are hazardous to the environment. Maximum care and
caution are required when handling coolants. Always observe
the safety data sheet issued by the manufacturer. Ensure that
personnel handling coolants are regularly informed about
potential dangers and are instructed in the safe handling of
coolants.
Cleaning liquids Cleaning liquids incorporating solvents contain toxic sub-
stances. They must not be allowed to escape into the environ-
ment. Disposal must be carried out by a specialized disposal
company.
Only qualified electricians are permitted to work in a work
room marked by this sign. unauthorized persons must not
enter the workplaces thus marked and must not open the
marked cabinet.
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