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iso-17234-leather-determination-of-restricted-substances
Leather Chemical & Physical Tests ASTM D1119 Standard Test Method for Ash Content in LeatherASTM D2061 Standard Test Method for Shrinkage Temperature of LeatherASTM D2097 Color Fastness Testing of LeatherASTM D2097 Standard Test Method for Flex Resistance of LeatherASTM D2204 Standard Guide for Sampling Leather for TestingASTM D2206 Standard Test Method for Thickness of LeatherASTM D2209 Standard Test Method for Tensile Strength of LeatherASTM D2240 Standard Test Method for Water RepellencyASTM D2616 Standard Test Method for Density of LeatherASTM D3359 Standard Test Method for Adhesion of CoatingsASTM D3456 Standard Test Method for Fat Content in LeatherASTM D3456 Standard Test Method for Fat LiquoringASTM D3725 Standard Test Method for Chromium Content in LeatherASTM D3795 Standard Test Method for Water Vapor Permeability of LeatherASTM D4039 Standard Test Method for Grain Crack Strength of LeatherASTM D4138 Standard Test Method for Dye Content of LeatherASTM D4312 Standard Test Method for Chromium(VI) in LeatherASTM D4705 Standard Test Method for Tear Resistance of LeatherASTM D5058 Standard Test Method for pH Value of LeatherASTM D5070 Standard Test Method for Colorfastness to RubbingASTM D5196 Standard Test Method for Formaldehyde Content of LeatherASTM D5197 Standard Test Method for Free Formaldehyde ContentASTM D5729 Standard Test Method for Thickness MeasurementASTM D573 Standard Test Method for Shrinkage Temperature of LeatherASTM D6246 Standard Test Method for Chemical Residues in LeatherASTM D6247 Standard Test Method for Chlorophenols in LeatherASTM D6297 Standard Test Method for Colorfastness of LeatherASTM D6547 Standard Test Method for Sulfur Compounds in LeatherASTM F726 Standard Practice for Testing Leather for CytotoxicityASTM F813 Standard Practice for Cytotoxicity Testing of LeatherISO 105-A01 Leather — Test for color fastness to waterISO 105-B02 Leather — Test for color fastness to artificial lightISO 105-X12 Leather — Test for color fastness to rubbingISO 10993-10 Leather — Biological Evaluation for Skin IrritationISO 10993-5 Leather — Biological Evaluation for CytotoxicityISO 11998 Leather — Determination of Formaldehyde ContentISO 12586 Leather — Determination of Sulfur CompoundsISO 14370 Leather — Determination of Free FormaldehydeISO 14372 Leather — Determination of ChlorophenolsISO 17075 Leather — Determination of Chromium(VI) ContentISO 20108 Leather — Determination of Chromium ContentISO 2409 Leather — Testing of Coating AdhesionISO 2412 Leather — Measurement of ThicknessISO 2414 Leather — Determination of Shrinkage TemperatureISO 2415 Leather — Physical and mechanical tests — Determination of tensile strength and elongationISO 2416 Leather — Chemical tests — Determination of Fat ContentISO 2416 Leather — Determination of Fat LiquoringISO 2417 Leather — Chemical tests — Determination of pH valueISO 2418 Leather — Determination of Water ContentISO 2418 Leather — SamplingISO 2419 Leather — Determination of Water Vapor PermeabilityISO 2419 Leather — Physical and mechanical tests — Sample preparation and conditioningISO 2431 Leather — Determination of Water ResistanceISO 2439 Leather — Determination of Flex ResistanceISO 4044 Leather — Determination of Ash ContentISO 4045 Leather — Preparation of Test SpecimensISO 4047 Leather — Determination of Dye ContentISO 4674 Leather — Physical and mechanical tests — Determination of tear loadISO 5402 Leather — Determination of Grain Crack Resistance

Comprehensive Guide to ISO 17234 Leather Determination of Restricted Substances Laboratory Testing Service Provided by Eurolab

ISO 17234 is a global standard for the determination of restricted substances in leather products. This standard is developed and maintained by the International Organization for Standardization (ISO), which is an independent, non-governmental organization that promotes worldwide proprietary, industrial, and commercial standards.

Legal and Regulatory Framework

The testing service provided by Eurolab complies with international and national regulations governing the safety of leather products. Some of the key regulations include:

  • REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals) in the European Union

  • RoHS (Restriction of Hazardous Substances) in Europe and other countries

  • California Proposition 65 in the United States

  • Chinas National Standard GB/T 19841-2005

    • International and National Standards

    The following standards apply to ISO 17234 Leather Determination of Restricted Substances testing:

  • ISO 17234:2014 (Determination of restricted substances)

  • EN 13521:2011 (Leather and related products Determination of chromium VI content)

  • ASTM F2059-09 (Standard Test Method for Chromium(VI) Content in Leather)

    • Standard Development Organizations

    The International Organization for Standardization (ISO) is the primary standard development organization responsible for developing and maintaining ISO 17234. Other organizations, such as the European Committee for Standardization (CEN), also contribute to the development of standards related to leather products.

    Evolution and Update of Standards

    Standards are regularly reviewed and updated to reflect changes in technology, regulations, and market needs. Eurolab stays up-to-date with the latest developments and ensures that its testing services comply with all applicable standards.

    Standard Numbers and Scope

    Some relevant standard numbers and their scope include:

  • ISO 17234:2014 - Determination of restricted substances

    • Scope: This International Standard specifies a method for the determination of restricted substances in leather products.

  • EN 13521:2011 - Leather and related products Determination of chromium VI content

    • Scope: This European Standard specifies a method for the determination of chromium VI content in leather and related products.

    Compliance Requirements

    Companies operating within the leather industry must comply with various standards, including ISO 17234. Compliance is essential to ensure product safety and avoid regulatory penalties.

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    Why This Specific Test Is Needed and Required

    The determination of restricted substances in leather products is a critical requirement for ensuring product safety and compliance with regulations. Restricted substances can pose health risks, environmental hazards, or both. Testing for these substances helps manufacturers identify potential issues and take corrective actions.

    Business and Technical Reasons

    Conducting ISO 17234 Leather Determination of Restricted Substances testing provides several business and technical reasons:

  • Ensures product safety and regulatory compliance

  • Reduces liability and reputational risks

  • Enhances customer confidence and trust

  • Supports quality assurance and quality control initiatives

  • Complies with international and national regulations

    • Consequences of Not Performing This Test

    Failure to conduct ISO 17234 Leather Determination of Restricted Substances testing can result in:

  • Regulatory penalties and fines

  • Product recalls and withdrawals from the market

  • Reputational damage and loss of customer trust

  • Increased liability and insurance costs

    • Industries and Sectors That Require This Testing

    Companies operating within the following industries require ISO 17234 Leather Determination of Restricted Substances testing:

  • Leather manufacturers

  • Leather goods suppliers

  • Footwear companies

  • Handbag and accessory producers

  • Upholstery and textile manufacturers

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    Step-by-Step Explanation

    The following step-by-step explanation outlines the procedure for conducting ISO 17234 Leather Determination of Restricted Substances testing:

    1. Sample Preparation: Prepare a representative sample of leather from the product.

    2. Instrument Calibration: Calibrate the instruments used in the test, including spectrophotometers and chromatographs.

    3. Test Procedure: Perform the test according to the standards requirements, using a combination of extraction, separation, and detection techniques.

    4. Measurement and Analysis: Measure and analyze the sample for restricted substances using the calibrated instruments.

    5. Data Collection and Recording: Collect data on the concentrations of restricted substances in the sample.

    6. Test Report Generation: Generate a test report containing the results of the analysis.

    Testing Equipment and Instruments

    The following equipment and instruments are used to conduct ISO 17234 Leather Determination of Restricted Substances testing:

  • Spectrophotometers (e.g., UV-Vis, IR)

  • Chromatographs (e.g., HPLC, GC)

  • Extraction systems

  • Detection systems

    • Test Methodology

    The test methodology involves a combination of extraction, separation, and detection techniques. The standard specifies the use of spectrophotometry and chromatography to detect restricted substances.

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