TS EN 1748-2-1

TS EN 1748-2-1 is the standard that defines the basic terms and general physical and mechanical properties for glass ceramics used in buildings. It sets out how this material family is identified and classified in the building-glass context, and it frames key topics such as chemical composition, dimensional characteristics, and minimum quality requirements.

Why glass ceramics matter in building applications

Glass ceramics are special glass-based materials produced through controlled crystallisation, giving them a microstructure that differs from ordinary glass. That internal structure can strongly influence thermal behaviour, strength-related characteristics, and appearance. In building products, precise definition of the material is important not only for performance discussions but also for fit, finish, and consistency of visual quality.

What this standard addresses

• Definitions and classification for glass ceramics used in buildings
• The framework for chemical composition and main physical/mechanical properties
• Dimensional principles for products supplied in stock sizes or cut sizes
• Minimum quality requirements relating to optical and visual faults
• Products intended for final end use

As a terminology-and-properties document, it helps create a common technical language for manufacturers, specifiers, and users. That shared basis makes it easier to describe glass ceramic products consistently when they are selected for building applications.