Overview
EN ISO 24264:2020 specifies standardized test methods for determining the attachment pull-out strength of heel top pieces in footwear. Developed by CEN in collaboration with ISO, this international standard applies to all types of heels with top pieces, including both hollow and compact designs. By providing a uniform approach to testing, EN ISO 24264:2020 helps ensure consistent, reliable quality and enhanced safety in the footwear industry.
Key Topics
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Attachment Strength Testing
The core focus is the measurement of pull-out strength of heel top pieces using a specified tensile method. This process is critical for assessing how securely the top piece is attached to the heel, which directly impacts shoe durability and safety.
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Applicability
The test method applies to any shoe type featuring a heel with an attached top piece, regardless of whether the construction is hollow or compact.
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Preparation and Conditioning
The standard outlines requirements for sample conditioning and preparation to ensure fair and consistent results. Samples are typically conditioned for 24 hours under controlled temperature and humidity.
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Testing Equipment
A tensile testing machine with appropriate accuracy and force range is required, as specified by related standards (e.g., ISO 7500-1). The procedure includes using specific clamping devices and tools to prepare and hold the test specimens.
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Evaluation and Reporting
Results are recorded as the maximum force (in Newtons) required to detach the top piece. The standard details requirements for reporting, including identification of footwear tested, reference to the standard, results, and any test deviations.
Applications
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Footwear Manufacturers
Used to qualify production methods and materials for heel top pieces, ensuring finished shoes meet durability expectations and consumer safety requirements.
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Quality Control Laboratories
Enables objective comparison of attachment strength across different shoe models and batches, facilitating robust quality assurance and product certification.
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Regulatory Compliance
Footwear subjected to EN ISO 24264:2020 testing can demonstrate compliance with European and international standards, supporting market access and consumer trust.
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Product Development
R&D teams can apply these test methods during the design phase to evaluate new materials or heel constructions before scaling up to mass production.
Related Standards
- ISO 7500-1: Metallic materials - Calibration and verification of static uniaxial testing machines. Specifies accuracy requirements for tensile testing equipment used in the EN ISO 24264:2020 test procedure.
- ISO 18454: Footwear - Standard atmospheres for conditioning and testing of footwear and components. Sets requirements for the environmental conditioning of samples prior to testing.
- EN ISO 22568 Series: Covers test methods for shoe components such as toecaps and inserts, related to footwear safety and durability.
Adopting EN ISO 24264:2020 ensures footwear manufacturers and testing labs have a reliable, repeatable method to assess top piece attachment strength. This contributes to improved product quality, customer satisfaction, and alignment with internationally recognized best practices for safety and durability in the footwear industry.
