CORRUGATED PACKAGING

Edge Crush Resistance Testing

Corrugated board is used extensively in packaging creation and design. Putting your corrugated materials through various testing scenarios, including this Edge Crush Resistance testing, helps us instruct you on how to better design the board itself and your packaging in general.

This way, when your packaging experiences edge crush forces during the manufacturing or shipping of your product to its end location, your packaging has the greatest strength possible to resist any edge crush forces.

Edge Crush Resistance testing measures the ability of corrugated board to resist crushing when loaded perpendicularly to the flute structure. Test methods include the short column method (both waxed and unwaxed) and the rigid support method.

Package testing and packaging materials testing are important parts of the research and development process. Package evaluation through packaging tests help to ensure that all corrugated board products and new package designs are created specifically to handle real-world situations.

Standards:

ISO 3037
ISO 13821
TAPPI 811
TAPPI 839

ISO 3037:2013 Corrugated fibreboard – Determination of edgewise crush resistance (unwaxed edge method)

Corrugated fibreboard – Determination of edgewise crush resistance – unwaxed edge method. This International Standard specifies an unwaxed edge method for the determination of the edgewise crush resistance of corrugated fibreboard. It is applicable to all corrugated fibreboard grades. This is intended as a method for quality measurement and quality specification purposes and is selected because it correlates with the top-to-bottom compression strength of the final transport package and because it is the simplest and most operationally convenient method.

ISO 13821:2002 Corrugated fibreboard – Determination of edgewise crush resistance (waxed edge method)

This International Standard specifies a method for the determination of the edgewise crush resistance of corrugated fibreboard. The force is applied in the direction of the flute axis. This method is applicable to single-wall, double-wall, and triple-wall corrugated fibreboard. It may also be used to test samples taken from corrugated cases and other converted products. While the method is applicable to waxed corrugated fibreboard, care must be taken that the heat used in the waxing step does not affect the corrugated structure. This is controlled by observing that failure during the test still occurs away from the loaded edges.

TAPPI 811: Edgewise compressive strength of corrugated fiberboard (short column test)

This method describes procedures for determining the edgewise compressive strength (ECT), perpendicular to the axis of the flutes, of a short column of single-, double-, or triple-wall corrugated fiberboard. The method includes procedures for cutting the test specimen, specimen support and two procedures for applying the compressive force (constant strain rate, or constant load rate). This method may also be used for comparing the edgewise compressive strength of different lots of similar combined boards or for comparing different material combinations.

TAPPI 839: Edgewise compressive strength of corrugated fiberboard using the clamp method (short column test)

Edgewise compressive strength of corrugated fiberboard using the clamp – short column test method. The Edge Compression Test method or ECT describes procedures for determining the edgewise compressive strength, parallel to the flutes, of a short column of single-, double-, or triple-wall corrugated fiberboard. The test method includes procedures for cutting the test specimen, one procedure for specimen support (spring support clamp fixture), and two procedures for applying the ECT method, compressive force.

Equipment:

MTS Criterion: Model 42

Maximum Load: 1,000lbs
Software: Testworks