TS EN 12440

TS EN 12440 is a designation standard for natural stone, covering the criteria used to name the material from raw material through to finished products. In practice, the same stone may be described differently depending on its origin, processing stage, appearance, or commercial form, so a consistent naming framework is important for clear technical communication.

How the designation framework works

The focus of this standard is not a single product stage, but the naming logic that applies across the whole chain from extracted material to semi-finished and finished stone products. In general technical terms, this helps keep commercial descriptions and geological or petrographic descriptions from being mixed up. It supports a common language for the stone industry without changing the material itself or its physical performance.

Why naming consistency matters

For natural stone, naming affects how products are understood, specified, documented, and compared between different parties. The issue becomes more important as surface finish, shape, use, or level of processing changes. As a general principle, designation rules do not replace technical properties; they standardize the way the material is identified and presented.

• The subject is natural stone and the criteria used to designate it.
• The scope extends from raw material to finished product.
• It supports consistent terminology across the natural stone sector.
• By its title and scope, TS EN 12440 is about designation criteria rather than a glossary of terms.