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7.7 INSERT THE POLYMER INTO THE BARREL
Note that this part of the procedure must be carried out as quickly as possible to prevent the polymer
from being affected by moisture and so achieve the correct IV value.
Please refer to the relevant sections that show how to prepare the sample then transfer it into the
barrel.
Place the relevant filling funnel onto the top of the barrel.
n
Press the key under GAS OFF to stop the flow of nitrogen gas.
n
Insert the polymer into the top of the filling funnel.
n
Remove the filling funnel from the top of the barrel.
n
Insert a clean follower into the top of the barrel.
n
Push the charging tool into the top of the barrel.
n
Immediately press the green GO key to start the test. The "Charging" screen will be displayed.
n
Note that the gas will be automatically switched on again to provide a low volume of nitrogen gas
through the barrel to prevent any air from entering it during this "charging" period.
44 PET Plus User Manual
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