ISO 14125 — Flexural Properties of Fibre-Reinforced Plastic Composites

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ISO 14125 is the test method for the flexural properties of fibre-reinforced plastic composites. To match this to your program, talk with our team.

What ISO 14125 Covers

It determines flexural strength and modulus of FRP laminates using three- or four-point bending, aligned with the international framework.

How the Test Is Run

A composite bar is loaded in three- or four-point bending at a controlled rate, and flexural strength and modulus are calculated from the load-deflection curve.

Why It Matters

Flexural properties are a core composite metric; a rigid fixture and accurate deflection measurement keep results comparable.

Reading the Designation

Cited as ISO 14125 with its edition. Confirm the version and specimen or fixture requirements before finalizing setup. To configure a composite testing setup, request a quote.

Related Standards

ASTM D7264 is the ASTM composite flexural method and EN 2562 covers aerospace UD carbon flexure.

Request a Quote

Setting up composite flexural testing to ISO 14125? Request a quote and our team will help you build a system matched to your laminate layup and support span.


TensileMill CNC products for ISO 14125

Our specimen-preparation systems and testing equipment compatible with ISO 14125:


Build your ISO 14125 workflow with TensileMill CNC

TensileMill CNC designs and builds the systems labs use for standards-based mechanical testing. Our range includes universal testing machines with composite grips and fixtures for tension, compression, and shear coupons. Share your material mix and throughput, and we will recommend a setup that fits ISO 14125.