Packaging Science and Testing
Fiberboard - Joint Tensile Strength

When a shipping container is dropped or compressed, its manufacturer's joint is subjected to stresses along with all other edges. This test gives indication of the ability of the joint to withstand rough handling without failure, to the extent that failure related to the tensile strength of the joint itself. Generally, the manufacturer's joint will be stronger than the tensile strength of the board- failure will normally occur away from the joint.

A Chatillon^® testing system may be used to determine manufacturer's joint tensile strength and for making comparisons between the joint and board strength.

Industry standards for determining the flat crush strength for corrugated board is:
- TAPPI T-808

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