ISO 17025 Laboratory Scope Verification for Textile Restricted Substance Testing
A test report guarantees compliance only when the laboratory accreditation schedule lists the specific test method, analyte family, and exact substrate matrix.
EN ISO 17075-2
Standard Definition
International testing standards for leather products define the official chromatography method for detecting hexavalent chromium in consumer goods. Under the protocol of EN ISO 17075-2, laboratories extract the chemical from the material and quantify it using high-performance liquid chromatography. This method offers higher precision than colorimetric tests by eliminating the color interference caused by leather dyes.
It provides brands with reliable data to ensure compliance with strict environmental regulations.
Analytical Procedure
The chemical analysis begins with an extraction process that mimics the action of sweat on the leather material. When applying EN ISO 17075-2, the sample is shaken in a phosphate buffer solution under controlled conditions to dissolve any soluble chromium. The extract is then filtered and injected into the chromatographic system for separation and detection.
This approach prevents false positives that often arise during alternative test methods.
Detection Range
Regulatory limits for this restricted substance are set at extremely low thresholds due to its highly allergenic nature. Implementing EN ISO 17075-2 allows laboratories to detect concentrations as low as three milligrams per kilogram of leather. This sensitivity is necessary for meeting European Union REACH regulations and brand-specific lists of restricted substances.
The method remains the standard for leather accessories, garments, and footwear imports.
Commercial Application
Garment manufacturers rely on certified laboratory reports using this standard to pass customs audits. Failing to meet the criteria of EN ISO 17075-2 leads to shipment seizures and mandatory product recalls.