ISO 5628:2019 — Bending stiffness of paper and board (2-point, 3-point, 4-point)
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.
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
Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.