19
en
3.11.2 Manual pre-cleaning with ultrasound and brush
D–W:
Drinking water
RT:
Room temperature
*Recommended: BBraun Stabimed fresh
►
Note the information on appropriate cleaning brushes and disposable
syringes, see Validated cleaning and disinfection procedure.
Phase I
►
Clean the product in an ultrasonic cleaning bath (frequency 35 kHz) for
at least 15 min. Ensure that all accessible surfaces are immersed and
acoustic shadows are avoided.
►
Clean the product with a suitable cleaning brush in the solution until
all discernible residues have been removed from the surface.
►
If applicable, brush through non-visible surfaces with an appropriate
cleaning brush for at least 1 min.
►
Mobilize non-rigid components, such as set screws, links, etc. during
cleaning.
►
Thoroughly rinse through these components with the cleaning disin-
fectant solution (at least five times), using a disposable syringe.
Phase II
►
Rinse/flush the product thoroughly (all accessible surfaces) under run-
ning water.
►
Mobilize non-rigid components, such as set screws, joints, etc. during
rinsing.
3.11.3 Mechanical alkaline cleaning and thermal disinfecting
Machine type: single-chamber cleaning/disinfecting machine without ultrasound
D–W:
Drinking water
FD–W:
Fully desalinated water (demineralized, low microbiological contamination: drinking water quality at least)
*Recommended: BBraun Helimatic Cleaner alkaline
►
Check visible surfaces for residues after mechanical cleaning/disinfect-
ing.
Phase
Step
T
[°C/°F]
t
[min]
Conc.
[%]
Water
quality
Chemical
I
Ultrasonic cleaning
RT (cold)
>15
2
D–W
Aldehyde-free, phenol-free, and QUAT-free concentrate, pH ~ 9*
II
Rinsing
RT (cold)
1
-
D–W
-
Phase
Step
T
[°C/°F]
t
[min]
Water
quality
Chemical
I
Prerinse
<25/77
3
D–W
-
II
Cleaning
55/131
10
FD-W
■
Concentrate, alkaline:
– pH ~ 13
– <5 % anionic surfactant
■
0.5 % working solution
– pH = 11*
III
Intermediate rinse
>10/50
1
FD-W
-
IV
Thermal disinfection
90/194
5
FD-W
-
V
Drying
-
-
-
According to the program for cleaning and disinfection device
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