Cleaning And Decontamination; Decontamination Procedure; Wipe/Spray Disinfection - Thermo Scientific Safe 2020 Operating Instructions Manual

9.

Cleaning and decontamination

9.1

Decontamination procedure

Several procedures can be applied for decontaminating the safety cabinet. Which
procedure is selected, depends on:
• the potential risk imminent in the agents,
• the degree of purity required by an experiment or by a work process.
Possible decontamination procedures:
Wipe/spray disinfection: is the standard disinfection procedure for cabinets
used for microbiological experiments.
UV disinfection: is particularly suited as an intensifying additional disinfection
after a wipe/spray disinfection.
Sterilization with steam: can be used for treating the removable stainless steel
components. Examples of autoclavable components are the bezels of the UV
lamps, the workplate or workplate segments and the armrests.
Disinfection with formaldehyde: can be performed if a sterile scmple
chamber is required for the work process. This sterilization procedure is
mandatory:
• when filters are replaced,
• when the device is shut down,
• when the device is discarded.
9.2

Wipe/spray disinfection

The wipe/spray disinfection is performed in three stages:
• Predisinfection,
• cleaning,
• final disinfection
Recommended disinfectants:
NOTE – Compatibility
Chloride-containing disinfectants may damage
some surfaces. Therefore, use only disinfectants
that do not contain chloride!
Disinfectants with an alcohol content of more
than 70 % may cause embrittlement of plastic
components after extended esposure. Use only
disinfectants with a low alcohol content. When
using a disinfectant with an alcohol content
of more than 70 %, the release limit of 200 g
within 2 hours must not be exceeded.
Also suited are disinfectants based on
quaternary ammonium compounds.
Operating Instructions Safety Cabinet Safe 2020 / Maxisafe 2020
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