Euroklassen

Euroklassen is the Dutch term for the European fire classification system used for construction products. It provides a harmonized way to describe how materials react to fire, as defined in the European standard EN 13501-1. The classification covers aspects such as how easily a material ignites, how it contributes to flame spread, and the amount of heat, smoke, and flaming droplets produced during a fire.

The system uses seven main classes: A1, A2, B, C, D, E and F. A1 and A2 denote non-combustible or limited-combustibility materials, which contribute very little to fire development. Classes B through F describe progressively greater levels of combustibility and involvement in a fire. Each class can carry additional descriptors for smoke production (s1, s2, s3) and for flaming droplets (d0, d1, d2), leading to combined labels such as B-s1, d0 or C-s2, d1. The overall Euroclass of a product is determined through standardized fire testing and is used for labeling, market access, and to support building regulations across the European Union.

The purpose of Euroklassen is to replace disparate national classifications with a single, cross-border scheme, enabling safer material choices and easier comparison for designers, manufacturers, and authorities. While the Euroclass provides a standardized indication of a product’s reaction to fire, real-world performance also depends on installation practices, fire scenarios, and overall building design. In Dutch contexts the term Euroklassen is common; in English-language materials the term Euroclasses is typically used.