ISO 5628 specifies laboratory methods for determining the bending stiffness of paper, paperboard, and corrugated board. To match this to your program, talk with our team.
What ISO 5628 Covers
It measures the resistance of paper and board to bending, a key property for how sheets and boxes hold shape and run through equipment.
How the Test Is Run
A specimen is bent by a defined method and the force or moment needed to reach a set deflection is measured, giving the bending stiffness.
Why It Matters
Bending stiffness governs runnability and box rigidity; a suitable bending fixture and accurate force measurement are used.
Reading the Designation
Cited as ISO 5628 with its edition year. Confirm the edition and specimen or conditioning requirements before finalizing setup. To configure a paper testing setup, request a quote.
Related Standards
ISO 12192 covers edgewise compression of paper and board.
Request a Quote
Setting up bending stiffness testing to ISO 5628? Request a quote and our team will help you build a system matched to your grammage and test method.
TensileMill CNC products for ISO 5628
Our specimen-preparation systems and testing equipment compatible with ISO 5628:
Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell
Set up ISO 5628 testing with TensileMill CNC
TensileMill CNC helps labs run ISO 5628 with repeatable, audit-ready results. For this work we supply universal testing machines with paper and board grips and compression fixtures. Let us know your application and our engineers will help you build a compliant ISO 5628 setup.