Key Differences Between EN 13422 and EN 12899 Standards for Traffic Safety Devices
When manufacturing or sourcing traffic safety products for European markets, compliance with relevant EN standards is essential. Two of the most important are EN 13422 and EN 12899-1, which apply to temporary delineation devices and fixed road signs, respectively. This article outlines the core distinctions between these standards in terms of application, testing, visual performance, and durability.
1. Purpose and Application
EN 13422 applies to portable traffic delineators, including traffic cones and cylinders. These are temporary devices used during construction, road maintenance, or emergency situations.
EN 12899-1 covers permanent vertical road signs, including sign plates, supports, and retroreflective sheeting used in long-term installations.
2. Physical Performance Requirements
EN 13422 includes tests for:
Low-temperature resistance at –20 °C to prevent material brittleness.
Stability and anti-topple force to ensure the product stays upright in wind or passing traffic.
Impact resistance, verifying the device won't break after being dropped from a set height.
EN 12899-1 emphasizes:
Wind load resistance, based on EN 1991-1-4 structural calculations.
Passive safety, ensuring that the structure behaves predictably under vehicular impact (e.g., frangible supports).
3. Visual and Reflective Performance
Both standards require daytime color and nighttime retroreflectivity testing, but with different parameters:
EN 13422 includes:
Luminance factor (β) under daylight.
Retroreflective values (RA), relative luminance distribution (L<sub>rel</sub>), and colorimetric requirements at specific geometries.
EN 12899-1 requires:
Higher-class retroreflective sheeting (e.g., Class RA1, RA2).
Detailed performance across multiple observation and entrance angles.
Long-term reflectivity retention and resistance to color fading.
4. Durability Testing
EN 13422 focuses on short-term resilience, without stringent long-term aging requirements.
EN 12899-1 demands:
Temperature cycling and climatic aging to test material and adhesive durability.
Peel adhesion tests to ensure reflective films stay intact after years of exposure.
5. Classification and Compliance Markings
EN 13422 products are classified by visibility (R1–R3), luminance (L1–L2), and stability (W1–W3). The category must be printed on the product body.
EN 12899-1 products must carry a CE mark, supported by ETA certification for reflective materials, and follow factory production control per EN 12899-4 and type testing per EN 12899-5.
Conclusion
Choosing between EN 13422 and EN 12899-1 depends on the intended use-temporary or permanent-and the required performance durability. Manufacturers and importers must align their products with the correct standard to ensure legal compliance and public safety. Understanding these differences helps ensure your traffic safety equipment performs reliably under all conditions.
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