Rotors And Attachments; Cleaning And Care; Disinfection; Removal Of Radioactive Contaminants - Hettich MIKRO 120 Bedienungsanleitung

18.2

Rotors and Attachments

18.2.1

Cleaning and care

•
In order to prevent corrosion and material changes, rotors and accessories must be cleaned regularly with soap
or a mild detergent and a damp cloth. Cleaning is recommended at least once a week. Contaminants must be
removed immediately.
•
Ingredients of suitable detergents:
soap, anionic tensides, non-ionic tensides.
•
After using detergents, remove detergent residue by rinsing with water (only outside of the centrifuge) or wipe off
with a damp cloth.
•
The rotors and accessories must be dried directly after cleaning.
•
Angle rotors, container and hanger made of aluminium are to be lightly greased after drying using acid-free
grease, e.g. vaseline.
•
In the case of biosafety systems (for further details of available biosafety systems see chapter
"Anhang/Appendix, Rotoren und Zubehör/Rotors and accessories"), the packing rings must be checked and
cleaned regularly (weekly).The sealing ring is to be replaced immediately upon indication of crack formation,
embrittlement or abrasive wear. In order to prevent the packing ring from twisting when opening and closing the
cover, the packing ring must be lightly rubbed with talcum powder or a rubber care product.
•
In order to prevent corrosion as a result of moisture between the rotor and the motor shaft, the rotor should be
disassembled and cleaned at least once a month, and the motor shaft should be lightly greased.
•
The rotors and the accessory parts have to be checked on a monthly basis for wear and corrosion.
Rotors and attachments may no longer be utilised upon indication of wear and tear or corrosion.
•
Check the firm seating of the rotor on a weekly basis.
18.2.2

Disinfection

•
If infectious material should get on the rotors or accessories, they must be appropriately disinfected.
•
Ingredients of suitable disinfectants:
glutaraldehyde, propanol, ethyl hexanol, anionic tensides, corrosion inhibitors.
•
After using disinfectants, remove disinfectant residue by rinsing with water (only outside of the centrifuge) or wipe
off with a damp cloth.
•
The rotors and accessories must be dried directly after disinfection.
18.2.3

Removal of radioactive contaminants

•
The agent must be specifically labelled as being an agent for the removal of radioactive contaminants.
•
Ingredients of suitable agents for removing radioactive contaminants:
anionic tensides, non-ionic tensides, polyhydrated ethanol.
•
After removing the radioactive contaminants, remove agent residue by rinsing with water (only outside of the
centrifuge) or wipe off with a damp cloth.
•
The rotors and accessories must be dried directly after removing the radioactive contaminants.
18.3

Autoclaving

Swing-out rotors, angle rotors made of aluminium, suspension made of metal, lids with bio-containment as well as
stands and reductions can be autoclaved at 121° C / 250°F (20 mins).
Otherwise you must ask the manufacturer.
No statement can be made about the degree of sterility.
The lids of the rotors and containers must be removed prior to autoclaving.
Autoclaving accelerates the ageing process of plastics. In addition, autoclaving may discolour plastics.
We recommend that the packing rings of the bio-safety system be replaced after autoclaving.
18.4

Centrifuge containers

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With leakiness or after the breakage of centrifuging containers broken container parts and leaked centrifugation
material are to be completely removed.
•
The rubber inserts as well as the plastic sleeves of the rotors are to be replaced after a glass breakage.
Remaining glass splitters cause further glass breakage!
•
If this concerns infectious material, a disinfection process is to be executed immediately.
EN
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