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The Anatomy of Safety: A Guide to Package Testing


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A packaging too weak may be deformed, punctured or even crushed, and the quality of the product in the box cannot be guaranteed. Excessive packaging box increases costs and wastes resources. Finding “just right” packaging is an indispensable part of controlling product quality. In this guide, we will introduce 10 packaging testing methods that are frequently used to test packaging quality.

package testing

#1- Bursting Strength Test

The Bursting strength test measures the maximum force that a material or container can withstand before it ruptures. It helps to determine the strength and durability of packaging materials.

Designed to test bursting strength, Mullen tester works by placing a sample of the packaging material between two plates and gradually increasing the pressure until the material bursts. 

#2- Drop Test

The drop test is used to simulate the impact that can occur when a package is dropped during transportation or handling. This test ensures that the packaging can protect the product from damage caused by such impacts.

#3- Vibration Test

The vibration test simulates the vibration and shaking that can occur during transportation. There are two types of vibration test: sine vibration test and random vibration test. According to the vibration direction, there are two forms of vertical vibration and horizontal vibration.

Using specialized equipment, such as shakers or vibration tables, that can apply controlled vibrations to the packages. The response of the package is measured using accelerometers or other sensors, and data is collected and analyzed to evaluate the product’s performance under vibration stress.

#4- Impact Test

The impact test is used to evaluate the impact strength of the package when it receives vertical impact, horizontal impact and inclined impact during transportation. In order to determine whether the packaging has sufficient protection for the product during such impacts.

#5- Clamp Force Test

The clamp force test measures the minimum force required to hold the packaging together during transportation or storage. This test is important for products that need to be held together securely during transportation or storage.

#6- Abrasion test

Abrasion testing also called scuff resistance test,is a method used to determine the resistance of a material to wear and tear caused by contact with another surface. Printing is a key part of packaging, and abrasion testing can evaluate the suitability of packaging materials, printing pigments, colors and even printing size.

#7- Box Compression Test

A box compression test is a standardized test that measures the ability of a box or container to resist compressive forces when stacked. Box compression testing is important for package testing because it helps to ensure that a product’s packaging is strong and durable enough to withstand the rigors of the supply chain.

#8- Edge Crush Test, Flat Crush Test & Ring Crush Test

Edge Crush Test (ECT), Flat Crush Test (FCT), and Ring Crush Test (RCT) are all used to determine the strength of corrugated cardboard. These tests assess different factors affecting box strength.

1.ECT measures the vertical strength of the cardboard by applying pressure to the edges of the material.

2.FCT measures the resistance of the cardboard to deformations on the surface.

3.RCT measures the ability of the cardboard to resist compressive forces applied in a circular manner.

Compared to these three tests, the Box Compression Test (BCT) measures the strength of the entire box when it is compactly filled and stacked.

#9- Adhesive Strength Test

The adhesive strength test measures the force required to separate bonded parts of the corrugated cardboard sample. This test is instrumental in assessing the strength and durability of corrugated cardboard packaging materials.

#10- Moisture-proof Test

Moisture-proof test is an indispensable part for products that are sensitive to moisture, such as food, pharmaceuticals, and electronics.One of the most commonly used testing methods is the Cobb test.

With Cobb tester, it can test the water absorption of the outer surface of corrugated boxes.
According to the formula C=(M2-M1)×100
C: Cobb water absorption value, M2: sample weight after water absorption, M1: sample weight before water absorption.

In Conclusion

Overall, understanding and performing these tests is essential for business ow to ensure the appropriate strength and durability of their packaging, ultimately protecting against product damage and loss. In many cases, suppliers are even legally obligated to comply with packaging industry standards for certain products.