ISO 13936 Dimensional Change in Textile Materials

Comprehensive Guide to ISO 13936 Dimensional Change in Textile Materials Laboratory Testing Service

ISO 13936 is a widely recognized international standard for determining the dimensional change of textile materials under various conditions. This standard is developed by the International Organization for Standardization (ISO) and published in several languages, including English.

Relevant Standards:

These standards outline the requirements for conducting dimensional change tests on textile materials. The main purpose of this standard is to provide a reliable and reproducible method for evaluating the dimensional stability of textiles under various conditions.

Legal and Regulatory Framework:

The use of ISO 13936 is mandatory in many industries, including textiles, apparel, and home furnishings. Compliance with this standard ensures that products meet specific requirements related to dimensional stability, which can affect their performance, safety, and durability.

Standard Development Organizations (SDOs):

ISO, ASTM, EN, and TSE are some of the prominent SDOs involved in developing and publishing standards related to textile testing. These organizations collaborate with industry experts, researchers, and regulatory bodies to ensure that standards remain relevant and up-to-date.

How Standards Evolve:

Standards evolve through a rigorous process involving:

1. Committee formation

2. Drafting committee formation

3. Balloting

4. Publication

SDOs continuously review and update standards based on new research findings, technological advancements, and changing regulatory requirements.

Standard Numbers and Scope:

Here are some relevant standard numbers and their scope:

Standard Number Title

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ISO 13936:2005(E) Textiles - Determination of dimensional change under various conditions

ASTM D1298-09(2014)e1 Dimensional Change of Fabrics after Washing or Steaming

EN ISO 13936:2006A1:2012 Textiles - Determination of dimensional change under various conditions

Industry-Specific Compliance Requirements:

Different industries have varying requirements for compliance with ISO 13936:

Why ISO 13936 Testing is Required:

1. Dimensional Stability: Textiles undergo various processes that can affect their dimensions, such as washing, steaming, or drying.

2. Product Performance: Dimensional stability ensures the performance of textiles in various applications, including apparel, home furnishings, and technical textiles.

3. Safety Considerations: Inadequate dimensional stability can lead to safety issues, such as loss of grip or reduced thermal insulation.

Business and Technical Reasons:

Conducting ISO 13936 testing is essential for:

1. Quality Assurance (QA): Ensures that products meet specific requirements related to dimensional stability.

2. Regulatory Compliance: Adheres to industry-specific regulations and standards, such as those set by the International Organization for Standardization (ISO) or national regulatory bodies.

3. Competitive Advantage: Demonstrates commitment to quality and compliance, enhancing market reputation.

Consequences of Not Performing ISO 13936 Testing:

1. Product Failure: Inadequate dimensional stability can lead to product failure, resulting in customer dissatisfaction and financial losses.

2. Regulatory Penalties: Non-compliance with industry-specific regulations can result in fines, penalties, or even product recalls.

3. Loss of Reputation: Failure to meet quality and compliance standards can damage a companys reputation, leading to loss of market share.

Industries and Sectors Requiring ISO 13936 Testing:

1. Apparel

2. Home Furnishings

3. Textile Manufacturing

4. Technical Textiles

Risk Factors and Safety Implications:

Inadequate dimensional stability can lead to:

1. Safety Hazards: Loss of grip, reduced thermal insulation, or other safety-related issues.

2. Environmental Concerns: Inefficient use of resources, increased energy consumption, or waste generation.

Quality Assurance and Quality Control Aspects:

ISO 13936 testing ensures:

1. Consistency: Ensures products meet consistent quality standards throughout production.

2. Reliability: Verifies the reliability of textiles under various conditions.

3. Sustainability: Encourages sustainable practices by reducing waste, conserving resources, and minimizing environmental impact.

Step-by-Step Procedure:

1. Sample Preparation: Prepare test samples according to standard requirements.

2. Measuring Instrument Calibration: Calibrate measuring instruments in accordance with ISO 13936.

3. Measurement of Initial Dimensions: Record initial dimensions of test samples.

4. Exposure and Measurement: Expose test samples to various conditions (e.g., washing, steaming) and measure their dimensional change.

Equipment and Instruments:

1. Measuring Instruments: Use calibrated measuring instruments (e.g., micrometers, calipers) for accurate measurements.

2. Washing Machine/Steamer: Utilize standardized equipment for simulating various exposure conditions.

3. Temperature and Humidity Control: Maintain controlled temperature and humidity levels to simulate real-world conditions.

Interpretation of Results:

1. Dimensional Change Calculation: Calculate dimensional change using the formula specified in ISO 13936.

2. Acceptance Criteria: Evaluate test results against acceptance criteria outlined in the standard.

3. Reporting and Documentation: Record and document test results, including any deviations or non-conformities.

Interpretation of Results:

1. Dimensional Stability Evaluation: Assess dimensional stability based on calculated values.

2. Classification: Classify textiles according to their dimensional stability performance.

3. Recommendations: Provide recommendations for improving product performance and compliance with industry-specific regulations.

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