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Testing Packages
Mounting Packages using a Package Adapter Cartridge
Not all packages are compatible with the standard Test Cartridges which are designed for testing the most
common types of rigid and flexible packages. These types of packages can be tested using a Package
Adapter Cartridge. The Package Adapter Cartridge is designed to connect to the fixtured package using
standard 1/8" tube compression fittings.
There are two basic methods to fixture a package when not using the standard Test Cartridges. The
package could be "Plate Mounted" or individual tubes can be sealed into the package. The use of a
Mounting Plate is very similar to using a Mounting Foil and will not be covered here. The use of individual
tubes (referred to as tube-mounting can be adapted to almost any type of package or container.
Tube Mounting Packages
A "tube mount" package fixture is created by sealing all unnecessary openings and then sealing two tubes
into the package envelope to allow the Carrier Gas to "sweep" the interior. When "tube mounting" packages
the carrier gas tubes can enter the top or bottom of the package.
The procedure shown below along with Figure 6-3 illustrates how a package can be tube-mounted.
1.
Make two cuts in the package just large enough for the ends of the tubing to slip through.
2.
Liberally apply epoxy to the tubing at the points where the tubing enters the package. Be
careful not to seal off the ends of the tubing. Five Minute Epoxy works well for this.
3.
Move the package slightly so the ends of the tubing move a short distance into the package.
This will allow the tubing to be sealed to the inside surface of the package instead of just the
outside surface. This is especially important if you are testing package made of paper, which
are coated with a barrier on one side (usually the inside).
4.
Allow the adhesive to harden completely before continuing.
6-4
Figure 6-3: Tube Mounted Packages
Revision D
AQUATRAN Model 3/40 Operator's Manual
MOCON, Inc.
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