Stack Testing

Stack tests assesses how well the packaging performs under pressure from stacked loads.

Stack testing requirements can differ depending on the packaging type and material being tested.

Typical Stack Testing Requirements

A typical fibreboard box stack test is explained below, however for specific stack testing requirements for your product type please get in touch for further details.

Key Requirements

The stack test is performed using a predetermined load, calculated based on the package’s height, weight, and any inter-stacking features, to simulate the pressure exerted by a 3-metre-high stack.

The test is performed on 3 packaging samples and includes:

• Load: Equivalent to the total weight of identical packages in a 3m high stack. 4G test samples are tested as a complete package (with inners and cushioning), whilst 4GV test samples are tested while empty. The total mass of identical 4GV packaging’s shall be based on the combined mass of the inner packaging’s used for the drop test.
• Duration: 24 hours
• Conditioning: At least 24 hours at controlled temperature and humidity; for plastic inners, contents cooled to -18°C or lower.
• Pass Criteria: No leakage, structural failure, or distortion affecting safety

These rigorous drop tests are an essential part of our commitment to safe and compliant packaging solutions. By replicating real-world drops and handling risks, we can ensure every item that leaves our facility can be trusted to protect its contents.

Air Sea Containers, can test your packaging to prove its capability for transporting dangerous goods.

Contact us today for expert support with UN packaging tests, capability testing or revalidation.