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Reliable product packaging is critical to prevent spills, contamination, and ensure product integrity during transportation. Issues such as packaging material compatibility, sealing machine setup, and contamination are factors that can affect the packaging seal reliability. Package testing in a vacuum environment can be a useful way of determining the integrity of product packaging. Packaging leak testing can be used in the following industries:
One method of leak testing product packaging, a batch of sealed liquid containers is placed in a vacuum chamber under vacuum for a predetermined time. After the chamber is vented to atmosphere, the operator removes the containers and inspects them for liquid residues on the exterior.
Another common method of package testing, often referred to as a bubble test or immersion leak test, utilizes clear vacuum chambers and submerges the package under water. As a vacuum is created, air inside the package can flow through any existing leaks in the packaging resulting in a trail of air bubbles rising to the top of the vacuum chamber.
Package testing can be destructive or non-destructive. These leak test methods are able to identify a leak, but cannot quantify the leak rate.
Special testing methods can be developed to test packaging with flexible walls. See Application Note 01-03: Helium Leak Testing Flexible Wall Parts for more details.
Select a related product category below for more information. Also, see LACO's standard package testing 12" x 18" vacuum chamber.
20" x 20" x 20" Cube Clear Vacuum Chamberwith shelf and cart for portable leak package testing.
Vertical Clear Vacuum Chamberwith shelf for bubble leak testing of packagingSee more part number information LVC-1218-1121-VC-PT
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