EN ISO 9073-3:2023 PDF

Overview - EN ISO 9073-3:2023 (Corrected version 2025-05)

EN ISO 9073-3:2023 (CEN adoption of ISO 9073-3:2023) specifies a standardized strip method for determining the tensile strength and elongation at break of nonwovens. The method covers testing in a conditioned or wet state and defines two specimen widths: Option A (25 mm) and Option B (50 mm). The standard is intended for use with constant rate of specimen extension (CRE) tensile testers; constant rate of loading (CRL) instruments are referenced for information (ISO 2062:2009, Annex A).

Key topics and technical requirements

• Scope and purpose: Measurement of breaking force and elongation at break for nonwoven materials using a strip tensile test.
• Specimen options: Two defined strip widths (25 mm and 50 mm) to suit different test requirements.
• Test conditions: Procedures for testing in both conditioned atmospheres and wet states, including conditioning requirements referenced to ISO 139.
• Apparatus: Requirements for CRE tensile testing machines, clamps/jaw faces and verification of the total operating system.
• Sampling and specimen preparation: Guidance on laboratory sampling, specimen cutting and orientation.
• Test procedure: Mounting, gauge length, rate of extension, handling of slippage and jaw breaks (detailed operational steps).
• Calculations and results: Determination of breaking force, apparent elongation and expression of results; precision and reporting requirements.
• Quality control: Notes on calibration, verification and potential causes of low precision (informative annex).

Practical applications and users

This standard is essential for:

• Textile and nonwoven manufacturers performing product development and production quality control.
• Laboratories and test houses offering accredited tensile testing services for nonwovens.
• R&D teams evaluating material durability, bonding methods and product comparisons.
• Procurement and compliance teams who need standardized test data for specifications, supplier acceptance and regulatory compliance. Use cases include wipe materials, geotextiles, medical nonwovens, filtration media and disposable hygiene products where tensile performance and elongation behavior are critical.

Related standards

• ISO 9073 series (other parts covering alternative nonwoven tests)
• ISO 139 - Standard atmospheres for conditioning and testing
• ISO 2062:2009 - (for CRL instrument information, Annex A)
• ISO 186, ISO 2859-1, ISO 3696, ISO 3951-1 - referenced for sampling, water quality and inspection plans

EN ISO 9073-3:2023 provides a harmonized, reproducible method to measure tensile strength and elongation of nonwovens, supporting consistent product evaluation and quality assurance across industry and testing labs.