Overview
SIST EN ISO 16179:2025 is an internationally recognized standard defining a reliable test method for the detection, identification, and quantification of organotin compounds in footwear and footwear components. Developed by the International Organization for Standardization (ISO), this standard contributes to the safety, quality, and regulatory compliance of footwear products. It utilizes gas chromatography paired with mass spectrometry (GC-MS and GC-MS/MS) to analyze various footwear materials, excluding metal hardware.
The method outlined in ISO 16179:2025 supports manufacturers, laboratories, and regulatory authorities in managing and controlling critical substances that may be present in footwear. Organotin compounds are considered hazardous, with known toxicity and regulatory restrictions in many markets, including the European Union.
Key Topics
- Purpose: Specifies procedures for detecting and quantifying organotin compounds in footwear materials using advanced analytical techniques, thereby supporting consumer protection and regulatory compliance.
- Applicability: Suitable for all types of footwear materials-such as leather, textiles, and polymers-excluding only metal hardware.
- Test Method:
- Extraction of organotins from the sample using methanol under acidic conditions.
- Derivatization of organotins to volatile forms for analysis.
- Quantification and confirmation via gas chromatography with mass spectrometry.
- Target Compounds: Covers a comprehensive range of mono-, di-, tri-, and tetrasubstituted organotin compounds, responding to both regulatory and brand-specific restricted substances lists (RSLs).
- Reporting: Includes clear guidance on the presentation of results, ensuring traceability and comparability.
Applications
- Footwear Manufacturers: Enables quality assurance and product safety by facilitating routine testing for critical organotin substances. Ensures compliance with global regulations and meets the requirements of brand RSLs.
- Testing Laboratories: Provides a standardized and validated methodology for conducting organotin analysis with high sensitivity and specificity. Enhances credibility and comparability of analytical results.
- Regulatory Authorities: Assists in market surveillance and enforcement of chemical safety requirements for footwear. Supports harmonization across the EU and international markets.
- Brands and Retailers: Facilitates transparent supply chain communications regarding chemical safety, helping reduce risks associated with hazardous substances and supporting sustainability initiatives.
Related Standards
- ISO/TR 16178: Footwear – Critical substances potentially present in footwear and footwear components – List of critical substances.
- ISO 21061: Footwear – Chemical tests – General principles on the preparation of samples.
- ISO 3696: Water for analytical laboratory use – Specification and test methods.
- ISO 4787: Laboratory glass and plastic ware – Volumetric instruments.
SIST EN ISO 16179:2025 supersedes CEN ISO/TS 16179:2012, offering updated procedures and technical revisions to match current regulatory and industry needs.
Keywords: footwear chemical testing, organotin analysis, critical substances, footwear materials, GC-MS, mass spectrometry, regulatory compliance, ISO 16179:2025, hazardous substances in footwear, restricted substances list, footwear safety standards, SIST EN ISO 16179.