17
FLASK PREPARATION USING THE MIXER
AND VACUUM PUMP CONT’D
Turn the vacuum chamber upside down,
with the flask system in it, and rest it on
the small circle of the polycarbonate lid.
Connect the vacuum pump hose to the
horizontal connector of the polycarbonate lid.
Connect the center shaft of the polycarbonate
lid to the motor shaft of the mixer.
Connect one end of the by-pass silicone
tube to the vacuum chamber connector
and the other end to the vertical connector
of the polycarbonate lid.
Turn on the vacuum pump.
As soon as the
manometer reaches 20 PSI, turn on the mixer
for 1 minute.
Turn off the mixer
and disconnect the
polycarbonate lid from the motor shaft of
the mixer.
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