When evaluating the durability and safety of urban outdoor leisure chairs, tensile strength testing of the seat surface elastic material (such as elastic straps or woven webbing) is critical. Key international standards ensure these materials withstand repeated use and environmental stress.
Primary standards include:
• ASTM D5034 (Standard Test Method for Breaking Strength and Elongation of Textile Fabrics): This method determines the force required to rupture the seat material and its elongation properties, crucial for assessing load-bearing capacity in public settings.
• EN 1796 (Resilient Textiles for Outdoor Furniture): European standard specifying requirements for tensile strength, elongation, and resistance to weathering (e.g., UV exposure, moisture) to ensure long-term performance.
• ISO 13934-1 (Tensile properties of fabrics): Measures maximum force and elongation at break under uniaxial tension, providing data for material selection.
Testing typically involves clamping a standardized specimen in a tensile testing machine, applying force until failure, and recording values for peak load (in Newtons or lbf) and elongation (%). Factors like UV resistance, cyclic loading (simulating repeated sitting), and environmental conditioning (e.g., temperature, humidity) are often integrated to mimic real-world conditions.
Results inform manufacturers on material suitability, ensuring chairs meet safety requirements for public spaces—preventing failures due to overloading or material degradation. Compliance with these standards enhances product reliability, user safety, and longevity in urban environments.