Overview
SIST EN ISO 22775:2005 specifies standardized test methods for evaluating the corrosion resistance of metallic accessories used in footwear. Developed under the joint efforts of international and European standardization bodies, this standard offers a uniform approach to assessing how metal components of shoes withstand atmospheric pollution and salt water exposure. By providing rigorous testing protocols, it ensures the longevity and reliability of metallic footwear accessories such as buckles, eyelets, rivets, and decorative elements.
Key Topics
- Corrosion Resistance Evaluation: The standard focuses on determining a metal surface's tendency to undergo visual changes or corrosion when exposed to common environmental stressors.
- Two Distinct Test Methods:
- Method 1: Sulfide Tarnishing - Assesses visual changes due to atmospheric contamination (specifically hydrogen sulfide exposure).
- Method 2: Salt Water Corrosion - Measures corrosion resulting from salt water exposure using a simulated scenario with sodium chloride solution.
- Subjective Assessment and Grading: Both methods rely on visual comparison between tested and reference specimens, utilizing a standardized grading scale.
- Test Reporting: Detailed guidance is provided for documenting test results, including method used, specimen details, grading, and any relevant observations.
Applications
This standard is essential for manufacturers, laboratories, and quality assurance teams in the footwear industry. Common applications include:
- Quality Control: Ensuring that metallic accessories maintain aesthetic appeal and functional integrity over time, even in challenging environments.
- Product Development: Supporting designers and engineers in selecting and validating metal components that meet durability requirements for various market segments.
- Supplier Assessment: Providing a uniform benchmark for evaluating and comparing accessories sourced from different suppliers.
- Regulatory Compliance: Demonstrating adherence to international and European requirements for resistance to tarnishing and corrosion in footwear parts.
- Brand Reputation: Minimizing the risk of product failure and customer complaints related to discoloured or corroded metallic accessories.
Related Standards
Organizations and professionals working with SIST EN ISO 22775:2005 may also reference the following:
- ISO 20871 - Footwear - Test methods for outsoles - Abrasion resistance
- ISO 20885 - Footwear - Test methods for heels - Fatigue resistance
- ISO 18454 - Footwear - Standard atmospheres for conditioning and testing
- EN ISO 20344 - Personal protective equipment - Test methods for footwear
By adopting SIST EN ISO 22775:2005, stakeholders in the footwear sector benefit from improved product reliability, internationally recognized testing credibility, and enhanced consumer satisfaction. This standard contributes to a more robust, efficient, and consistent approach to corrosion testing of metallic shoe components, creating value across the entire footwear supply chain.
