DIN EN 1424 PDF Download

The DIN EN 1424 standard provides guidelines for the production and qualification of premix glass beads used in road marking materials. The standard includes specifications for various properties of the beads that need to be tested in the laboratory for production control.

One of the main requirements addressed in the standard is the granulometry of the glass beads, which refers to the size distribution of the particles. The standard defines the acceptable range for granulometry to ensure the desired properties and performance of the road marking materials.

Another important aspect considered in the standard is the refractive index of the glass beads. The refractive index indicates how light is bent as it passes through the beads and is closely related to their retroreflective properties. The standard provides criteria for the minimum refractive index to ensure optimal visibility of road markings under different lighting conditions.

The chemical resistance of the glass beads is also taken into account, as they need to withstand exposure to various environmental factors such as moisture, temperature, and chemicals. The standard specifies the testing procedures to evaluate the chemical resistance and durability of the beads.

In addition, the standard addresses the quality and surface treatments of the premix glass beads. Quality requirements ensure that the beads meet the specified standards and perform reliably over time. Surface treatments, such as coatings or colorants, may be applied to the beads to enhance their visibility or adhesion to road surfaces, and the standard provides guidelines for evaluating the effectiveness of these treatments.