Box compression test / stacking test (BCT) to SO 12048 and Tappi T804
ISO 12048 defines a method for determining the strength or stackability (stacking compression resistance) of corrugated board boxes or folding boxes in the form of a compression test, the box compression test (BCT) or in the form of a stacking test.
The TAPPI T804, standard, which is used primarily in the North American paper industry, only defines the compression test method in the box compression test.
While the BCT to ISO 12048 and TAPPI T804 examines the maximum load-bearing capacity of the entire box under real conditions, the ECT (edge crush test) to ISO 3037 and Tappi T811 provides information about the material strength of the corrugated board itself.
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Box compression test (BCT) and stacking test with ZwickRoell
Depending on the standard and test, the box or package is placed between the compression platens of a compression materials testing machine:
- In the case of a compression test (box compression test (BCT)) to ISO 12048 or Tappi T804, the package is loaded up to the nominal load or until failure.
- In the case of a stacking test to ISO 12048, an agreed force is kept constant for an agreed duration or until the box fails.
ZwickRoell universal testing machines and customized materials testing machines are available for BCT and stack testing for standard-compliant testing of your packages. Depending on the standard, compression platens are available either fixed or with one spherical seating.
For more information about our testing machines and compression platens, contact us!
Differentiation from other standardized test methods on corrugated board
| Short description | Standards |
|---|---|
| Paper, cardboard & corrugated board | Flexure test / stiffness under flexure (2-point, 3-point, 4-point) |
|
| Cardboard | Corrugated board | Puncture test (LPET vs. PET) |
|
| Cardboard | Corrugated board | Flat crush test (FCT) |
|
| Cardboard | Corrugated board | Edge crush resistance (ECT) |
|
| Cardboard | Corrugated board | Box compression test / stacking test (BCT) |
|