EN 1288 – Determination of the bending strength of glass

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EN 1288 is the multi-part European series for determining the bending strength of glass for building applications. To match this to your program, talk with our team.

What EN 1288 Covers

It measures how much bending stress glass can withstand before fracture, essential for glazing, facades, and structural glass, using several test configurations for different products.

How the Test Is Run

A glass specimen is loaded in a defined bending arrangement, such as ring-on-ring or four-point, at a controlled rate until it breaks, and the bending strength is calculated from the failure load and geometry.

Why It Matters

Bending strength governs safe glazing design; careful support, contact conditions, and a controlled rate are essential for flaw-sensitive glass.

Reading the Designation

Cited as EN 1288 with its edition year. Confirm the edition and specimen or fixture requirements before finalizing setup. To configure a bend or flexural setup, request a quote.

Related Standards

EN 843-1 covers technical ceramics flexural strength and EN 538 covers clay roofing tile flexure.

Request a Quote

Setting up bending strength testing of glass? Request a quote and our team will help you build a system matched to your glass type and test configuration.


TensileMill CNC products for EN 1288

Our specimen-preparation systems and testing equipment compatible with EN 1288:


Set up EN 1288 testing with TensileMill CNC

TensileMill CNC designs and builds the systems labs use for standards-based mechanical testing. Depending on your specimens, that can include universal testing machines with three- and four-point bend fixtures. Let us know your application and our engineers will help you build a compliant EN 1288 setup.