Disinfection With Formaldehyde; Cleaning The Exterior Surfaces; Cleaning The Front Window - Thermo Scientific MSC-Advantage Operating Instructions Manual

9 Cleaning and decontamination
9.4

Disinfection with formaldehyde

Procedure:
For gas disinfection, formaldehyde is evaporated in the tightly sealed sample
chamber. The quantity of the formaldehyde used depends on the sample chamber
volume of the cabinet version to be disinfected (see Technical Data). Per cu-
bic meter of sample chamber volume, at least 5 g formaldehyde must be evapo-
rated with 20 ml water (corresponds with 25 ml of a 20 % formaldehyde solution).
The formaldehyde evaporates immediately when its boiling point is reached. The
required reaction time is at least 6 hours. After the required reaction time, the
formaldehyde should be neutralized by evaporating a 25 % ammonium soluti-
on (10 ml per cubic meter of sample chamber volume).
Ambient conditions and accessories:
The temperature at the cabinet location should be approx 21 °C, the relative
humidity should be between 60 and 85 %. To evaporate the solution, a heating
device with a container is required.
NOTE – Disinfection procedure!
A disinfection with formaldehyde must be
performed in accordance with the specificati-
ons of EN 12469.
As this procedure has considerable risks, it
must only be performed by specially trained
and authorized service personnel!
9.5

Cleaning the exterior surfaces

Wipe the exterior surfaces of the device clean using a solution of TAP water and
commercially available dishwashing agent. Then, wipe the exterior surfaces dry
using a soft, clean cloth.
9.6

Cleaning the front window

For cleaning (and disinfection using the wipe disinfection procedure), the front
window can be lowered beyond the closing position (see Section 4.5).
The gap between the light dome and the front window upper edge ensures that
the upper section of the window can be cleaned or disinfected.
Clean the front window using a commercially available window cleaner.
Operating Instructions Biological Safety Cabinet | MSC-Advantage
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