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Leak-test
of
the
non-rebreathing
valve
-
Following each assembly.
Establish test setup
1 Conical sealing plug, smallest dia.
15mm
2 Non-rebreathing valve with check
valve
4 Patient connection
5 Catheter connector, dia. 4.5 mm
6 Silicone hose, internal dia. 4 mm,
exter-
nal dia. 6 mm, 100 mm
lona
3 Cap of check valve
7 Disposable syringe,
IO
mL
-
Detach cap from check valve.
-
Attach syringe together with catheter
connector.
-
Seal inspiratory port with sealing plug.
-
Using the syringe, extract a volume of
3
mL
and keep plunger of syringe in this
position. By force of the negative
pres-
sure, the black diaphragm of the check
valve adapts to the shape of the valve
body.
Within 15 seconds, the diaphragm must
not
come back to its original
state.
3s
17
I
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