Edge Crush Test (ECT)

DIN EN ISO 3037 or TAPPI T 811

The edge crush test (ECT) according to DIN EN ISO 3037 or TAPPI T 811 provides information on the strength of corrugated cardboard with flutes positioned vertically. It is important that force application to the specimen is exactly perpendicular during these tests.

The edge crush resistance is included in the McKee formula and is therefore of particular importance for quality control in corrugated cardboard factories. An essential requirement of this test is that the specimen has clean, perpendicular edges and the material must be free of existing damage. Knives are not ideal for cutting specimens and lever shears are not suitable. Good results are achieved with a twin-blade circular saw.

Edge crush test

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Edge crush test (ECT) with ZwickRoell

  • Precision-guided compression plates provide extremely high lateral stiffness, ensuring reproducible determination of characteristic values.
  • The compression plates are suitable for the ring crush test (RCT), the flat crush test (FCT), the edge crush test (ECT) and the corrugating medium test (CMT).
  • An essential requirement of this test is that the specimen has clean, perpendicular edges and the material must be free of existing damage. ZwickRoell's twin-bladed circular saw makes optimum specimen preparation easy.

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