Overview
ISO 10717:2010 is an international standard that defines a test method for assessing the burst strength of slide fasteners used in footwear. This standard applies to all types of slide fasteners, which are fastening devices consisting of interlocking elements mounted on tapes and operated by a slider mechanism. The burst strength test determines the maximum force a closed slide fastener can withstand before failure, ensuring the durability and reliability of footwear components.
Developed jointly by ISO Technical Committee ISO/TC 216 and European Committee for Standardization (CEN/TC 309), this test method supports quality assurance practices in the footwear industry. It provides a consistent procedure to evaluate the mechanical resistance of slide fasteners under stress, crucial for manufacturers and quality controllers seeking to meet international durability requirements.
Key Topics
- Scope of Test: The method specifically measures resistance of a closed slide fastener to burst forces by applying pressure from a spherical plunger on a clamped fastener segment.
- Test Apparatus:
- Clamping device securing the fastener and creating a free circular test area (25 ± 1 mm diameter).
- Central plunger with a spherical ball (6.25 ± 0.05 mm diameter) to apply stretching force.
- Force measurement system capable of accurately monitoring force up to 800 N.
- Test Procedure:
- Conditioning test specimens at 23 °C and 50% relative humidity.
- Testing three positions per fastener or three separate fasteners to obtain reliable results.
- Gradual forcing of the spherical ball through the fastener at a defined speed (0.20 ± 0.05 mm/s).
- Recording the maximum force at which the fastener fails, including failure type (e.g., teeth separation, chain breakage).
- Test Reporting: Reporting must include the standard reference, sample description, test date, average maximum force, failure types, and any procedural deviations.
Applications
ISO 10717:2010 is fundamentally important for:
- Footwear Manufacturers: To ensure the product’s slide fasteners meet strength requirements preventing premature failure during wear.
- Quality Control Laboratories: To conduct standardized testing for batch verification and compliance with industry standards.
- Material Suppliers: To validate the mechanical integrity of fasteners supplied to footwear producers.
- Product Development: Assisting designers and engineers in selecting and optimizing slide fasteners for durability and consumer satisfaction.
- Regulatory Compliance: Supporting adherence to international footwear safety and performance guidelines.
The burst strength test described in ISO 10717 is critical in reducing product returns and improving the lifespan of footwear by verifying that slide fasteners can resist operational stresses typical in daily use.
Related Standards
- ISO 17693 - Footwear - Test methods for uppers - Resistance to damage on lasting: Complements ISO 10717 by addressing upper material durability.
- ISO 19952 - Footwear - Vocabulary: Provides harmonized definitions critical for consistency in footwear standards and testing.
- ISO 17709 - Footwear - Sampling location, preparation and duration of conditioning of samples and test pieces: Outlines preparatory steps relevant to sample conditioning before tests like ISO 10717.
- ISO 18454 - Footwear - Standard atmospheres for conditioning and testing of footwear and components of footwear: Specifies environmental conditions to ensure test reproducibility.
Adhering to ISO 10717:2010 alongside related footwear standards enables manufacturers and testers to implement a comprehensive quality assurance process for slide fastener performance, contributing to safer, more durable footwear products in the market.