Packaging burst testing is a destructive quality control method used to measure the maximum pressure a package or its seals can withstand before rupturing. It ensures that products remain safely contained during transit, storage, and handling. This test is critical across multiple industries, including medical devices, pharmaceuticals, food, and consumer goods.

First, the package is securely connected to a test nozzle. Next, air is pumped inside at a controlled, constant rate. The internal pressure rises until the package ruptures. The system records the peak pressure in units like psi, kPa, bar, or kg/cm².

The test identifies if heat seals or adhesive bonds are strong enough to prevent leaks. It ensures the packaging can handle high-altitude air transit or physical compression.

There are two different methods to choose from:

1. Open/Free Burst Test: The package expands freely like a balloon until it pops. This measures the overall weakest point.
2. Restrained Burst Test: Two rigid plates limit the expansion of the package body. This isolates and tests only the perimeter seals.