Labconco FreeZone 794801 Series, Руководство пользователя

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Chapter 3: Getting Started
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Original instructions
Venting the Vacuum Pump
If any materials will be placed in the Stoppering Tray Dryer
that can liberate hazardous gases when heated, the vacuum
pump exhaust must be vented to a fume hood or other
ventilation device.
Chemical Resistance of Freeze Dryer
Components
The FreeZone Freeze Dryer and Stoppering Tray Dryer are designed to be
chemically resistant to most compounds that are commonly used in freeze drying
processes. However, by necessity, the Freeze Dryer is comprised of a number of
different materials, some of which may be attacked and degraded by certain
chemicals. The degree of degradation is dependent on the concentration and
exposure duration. Some of the major components of the FreeZone Freeze Dry
System that are susceptible to degradation are as follows:
Acids Buffers Solvents
Component Material
Ace
tic
Acid
2
0
%
F
o
rmic
Acid
T
rif
luo
ro
a
ce
tic
Acid
(T
F
A)
Ca
lcium
Chlo
ri
de
So
diu
m P
ho
sph
a
te
Ace
to
ne
Ace
to
nitt
irle
Ca
rbo
n T
et
ro
chlo
ride
Cy
clo
hex
a
ne
Dio
x
a
ne
M
et
hy
l t
-B
uty
l Ether
(
B
T
B
E
)
P
y
ridin
e
Valve Stem Acetal C D D D D
Collector*
Lid & Door Acrylic D D D D
Hoses,
Gaskets &
Valve
Bodies Neoprene C D D C C D D D C D
Flask Top Silicon
Rubber C D D D D D C D
Chamber &
Fittings Stainless
Steel C
* An accessory glass lid is available for the Freeze Dry Systems.
C – Moderate degradation; Limited use.
D – Severe degradation; infrequent use recommended; immediate
thorough cleaning required.
•
Most common compounds used in freeze drying processes, if allowed to enter the
vacuum pump, will degrade the oil and cause damage to the vacuum pump.
!