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Industry Leading Inspection Methods

Monitor and improve plastic container production.

Empty Container Leak Detection:
Inspection Methods

Standard ALPS inspection leak detection systems incorporate non-destructive pressure decay leak testing.

The Pressure Decay Leak Testing Method

In empty container leak testing, pressure decay is the dominant method for in-line leak test solutions. The container opening is sealed for purposes of the test and leakage outside of this volume to the atmosphere is detected and rejected. Vacuum decay can be used if there is a requirement to verify that the container can hold a minimum vacuum level (e.g. for products that are vacuum packed).


The pressure decay leak test requires that a volume be enclosed and tested to determine if there is a pressure change due to leakage out of, or into, the test volume.

The Vacuum Decay Leak Testing Method

In filled and sealed container leak testing, vacuum decay is the most common method for in-line and off-line leak test solutions. For verifying seal integrity, an enclosed test volume is created around the product's sealing area. For verifying seal and package integrity, the entire part is enclosed into a chamber. In each case, leakage into this enclosed volume is detected.


The Auxiliary Inspection Testing Methods

ALPS leak testing machines can offer additional testing options, such as bottle height and choked neck inspection. 

Learn more about auxiliary inspection methods

HDPE bottles on line for testing
Please contact us to discuss the best leak test solution for your product.