Overview
EN 513:2026 is a European standard developed by CEN that specifies a method for assessing the resistance of poly(vinyl chloride) (PVC) based profiles to artificial weathering using xenon-arc radiation. The standard applies to a broad range of PVC-based profiles, including those covered with foils, paints, prints, thermo-laminated foils, or produced by coextrusion. By following this standard, manufacturers and laboratories can consistently test and compare how various PVC profiles perform over prolonged exposure to simulated sunlight and environmental stressors.
Artificial weathering tests are crucial for evaluating changes in colour and mechanical properties, ensuring product durability and maintaining quality in real-world conditions. EN 513:2026 supports quality control, research and development, and regulatory compliance in building, construction, and other industries using PVC profiles.
Key Topics
- Test Methods: EN 513 outlines the procedure for exposing PVC profiles to xenon-arc radiation under controlled conditions, replicating the effects of weathering.
- Applicability: The test covers both uncoated and coated (foiled, painted, thermo-laminated) PVC profiles.
- Weathering Conditions: Two exposure methods (M and S) are defined, each with specific cycles of UV irradiation, temperature, humidity, and water spray.
- Evaluation Criteria: The standard details how to determine changes in color (using grey scale and colorimetric coordinates), impact strength, flexural properties, chalking, adhesion, and peel strength.
- Test Reporting: It stipulates comprehensive test report requirements, ensuring transparency and reproducibility of results.
- Annex for Color and Properties: Annex A provides guidance for measuring changes in colour and mechanical properties after exposure.
- Reference Methods: EN 513 references relevant ISO and EN standards for vocabulary, specimen preparation, and analysis methods.
Applications
EN 513:2026 delivers significant practical value across several sectors:
- Building & Construction: Manufacturers of window and door profiles, cladding, and finishing profiles use this standard to prove their products’ resistance to outdoor weathering.
- Quality Assurance: Companies rely on the methods in EN 513 to meet regulatory requirements and customer specifications for weathering durability.
- Product Development: R&D laboratories use the testing procedures to optimize the formulation and coatings of PVC profiles, ensuring long-term color stability and mechanical integrity.
- Coated Product Validation: The standard supports validation for profiles with decorative films, paints, or laminates, verifying that covering systems maintain adhesion and appearance during service life.
- Third-party Testing: Laboratories performing independent certification or market surveillance employ EN 513 to provide objective evaluation of weathering performance.
- Specification and Procurement: Architects, specifiers, and procurement professionals reference EN 513-compliant test results for selecting robust, reliable PVC profile products.
Related Standards
For comprehensive testing and compliance, EN 513:2026 is used alongside several related standards:
- EN ISO 4892-1 & EN ISO 4892-2: Methods of exposure to laboratory light sources, specifically xenon-arc lamps, for plastics.
- EN ISO 472: Definitions and vocabulary for plastics.
- ISO 9370: Instrumental determination of radiant exposure in weathering tests.
- EN ISO/CIE 11664-4 / 11664-6: Color measurement and assessment.
- EN ISO 179-1: Determination of Charpy impact properties.
- EN ISO 178: Flexural properties testing for plastics.
- EN 12608-1: Classification and testing for unplasticized PVC (PVC-U) profiles for building applications.
- EN ISO 8256: Tensile impact strength determination.
- EN ISO 4628-6: Chalking evaluation.
- EN ISO 2409: Adhesion of coatings (cross-cut test).
- EN 17271: Determination of peel strength of PVC profiles laminated with foils.
- EN 13245-2: Impact testing for PVC-UE profiles.
By adhering to EN 513:2026 and these related standards, organizations ensure consistent, reliable testing of PVC profiles, supporting innovation, durability, and customer trust in PVC-based solutions.
