What is EN ISO 13938-2:1999+A1:2014?

EN ISO 13938-2:1999+A1:2014 is a technical standard that provides specifications for determining the resistance of fabrics to penetration by water under hydrostatic pressure. This test method is commonly used in the textile industry to evaluate the water resistance of various fabrics, including woven, knitted, and nonwoven materials.

The Importance of Water Resistance Testing

Water resistance is a critical factor to consider when designing and manufacturing textiles intended for outdoor or protective applications. Assessing the fabric's ability to withstand water penetration helps determine its suitability for specific end uses such as raincoats, tents, or medical gowns. EN ISO 13938-2:1999+A1:2014 provides a standardized procedure to objectively measure and compare water resistance across different fabric samples.

The Testing Procedure

The EN ISO 13938-2:1999+A1:2014 standard outlines a detailed testing procedure that involves exposing fabric specimens to water pressure and observing any signs of water penetration. The test apparatus consists of a cylindrical column filled with water, onto which the fabric sample is clamped. The water pressure is gradually increased until water starts to penetrate the specimen. The height of the water column at this point indicates the fabric's resistance to water penetration, with higher values indicating better water resistance.

Interpreting the Test Results

The results obtained from the EN ISO 13938-2:1999+A1:2014 test can be used to classify fabrics into different water-resistance levels. Depending on their end use requirements, fabrics can be categorized as water-repellent, water-resistant, or waterproof. These classifications help manufacturers and consumers make informed decisions about the performance and suitability of fabrics for specific applications. Additionally, the test results can guide further development and improvement of fabrics to meet desired water resistance standards.

In conclusion, EN ISO 13938-2:1999+A1:2014 provides a standardized method to evaluate the resistance of fabrics to water penetration. This technical standard plays a crucial role in ensuring the quality and functionality of textiles used in various industries. By determining a fabric's water resistance, manufacturers can accurately assess its suitability for specific applications and make informed decisions. Ultimately, this benefits both producers and consumers by ensuring the durability and effectiveness of textile products in different environmental conditions.