Nonwovens are widely used in daily life and industry due to their unique properties. From medical and hygiene products to filter materials and geotextiles, nonwovens have a wide range of applications. To ensure that nonwoven products meet the needs of various industries, the ISO 9073 testing standard was developed to provide a comprehensive assessment method for nonwovens quality control.

1. Introduction to ISO 9073 Testing Standards

ISO 9073 is a series of standards developed by the International Organization for Standardization for nonwoven fabric testing. They cover a wide range of test methods, from raw material properties and finished product physical properties to specialized properties. These standards are designed to ensure that the quality and performance of nonwoven products meet specific requirements and protect the interests of end users.

2. Key Contents of the ISO 9073 Testing Standard

The ISO 9073 testing standard series consists of multiple parts, each addressing different testing requirements. The following are some key ISO 9073 standards and their explanations:

（1）ISO 9073-1: Sample Collection and Preparation

This part of the standard specifies the sampling and preparation methods for nonwoven fabric samples prior to testing to ensure accurate and reproducible test results.

（2）ISO 9073-2: Measurement of Thickness

The thickness of nonwoven fabrics directly affects their water absorption, air permeability, and other properties. This part of the standard describes methods for accurately measuring the thickness of nonwoven fabrics.

（3）ISO 9073-3: Determination of Mass and Mass Variability

Specifies standard test methods for determining the mass (weight) of nonwoven fabrics and their variability over a specified area.

（4）ISO 9073-4: Determination of Tear Strength

This standard provides a test method for measuring the tear strength of nonwoven fabrics, a key indicator of their mechanical properties.

（5）ISO 9073-10: Determination of liquid breakthrough time and absorption rate

For nonwovens used as absorbent materials, the absorption rate and amount of liquid absorbed are extremely important. This part of the standard describes test methods for evaluating these properties. Given that certain applications require special flame retardancy for nonwovens, this part of the standard specifies test methods for the flammability of nonwovens.

（6）ISO 9073-13: Flammability test

3. Application and Significance of ISO 9073 Standards in the Nonwovens Industry

ISO 9073 testing standards provide a scientific and systematic evaluation method for the production, inspection, and application of nonwoven products. Through these standards, manufacturers can comprehensively evaluate and control the performance of nonwovens, improving product quality and gaining an advantage in the fiercely competitive market. For consumers, the application of ISO 9073 standards ensures they can obtain reliable nonwoven products that meet their needs in various scenarios.

4. Conclusion

As the application areas of nonwovens continue to expand, the performance requirements are becoming increasingly stringent. The ISO 9073 testing standard provides a scientific and systematic testing method to ensure that nonwoven products can meet increasingly stringent application requirements. In the future, as technology advances and the market develops, the ISO 9073 standard may be updated and improved accordingly to adapt to new challenges and demands. For companies in the nonwovens industry, understanding and strictly adhering to the ISO 9073 testing standard is undoubtedly key to promoting sustainable development and enhancing competitiveness.

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