EN ISO 9073-15:2008 PDF

Name: EN ISO 9073-15:2008 — Textiles - Test methods for nonwovens - Part 15: Determination of air permeability (ISO 9073-15:2007)
SKU: EN ISO 9073-15:2008
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Textiles - Test methods for nonwovens - Part 15: Determination of air permeability (ISO 9073-15:2007)

Название (английский):

EN ISO 9073-15:2008

Textiles - Test methods for nonwovens - Part 15: Determination of air permeability (ISO 9073-15:2007)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 7 мая 2008 г.
Издание:: CEN EN 9073 edition 1 version 1
ICS:: 59.080.30

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Описание (английский):

ISO 9073-15:2007 specifies a method of measuring the flow of air passing perpendicularly through a given area of a fabric. This test method applies to most nonwovens, such as laminates, which are treated or untreated. They may have either a low or high basis weight.

Abstract

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Overview

EN ISO 9073-15:2008 is a European and international standard specifying the test method for determining the air permeability of nonwoven textile fabrics. Developed by the International Organization for Standardization (ISO) and adopted by CEN, this standard measures the rate of air flow passing perpendicularly through a defined area of nonwoven fabric under controlled pressure conditions. It applies to most nonwoven materials, including treated or untreated laminates, covering a wide range of basis weights from low to high.

This standardized test method is vital for assessing airflow characteristics in textiles, ensuring quality control and performance consistency in various industrial applications.

Key Topics

Scope and Application Applies broadly to nonwoven textiles and laminates, whether treated or untreated, detailing the measurement of air flow through the fabric’s cross-section.

Test Principles Measures air flow velocity through a fabric sample at a specific pressure differential (typically between 100 Pa and 2,500 Pa), expressed in units such as liters per square centimeter per second (l/cm²·s).

Test Apparatus and Setup

Circular test heads with defined areas (20 cm², 38.3 cm², or 50 cm²)
Clamping systems to prevent edge leakage and maintain specimen integrity
Vacuum pumps for generating steady airflow
Pressure sensors or manometers for precise measurement of pressure differentials
Flowmeters or variable orifices for measuring airflow velocity
Calibration plates to ensure instrument accuracy

Sample Preparation Specimens are conditioned under standard atmosphere conditions (ISO 139) and cut to specific dimensions (e.g., 100 mm x 100 mm). Special care is advised in handling to maintain sample integrity and prevent distortion.

Test Procedure Steps include securing the specimen on the test head, applying suction until the target pressure drop is reached, stabilizing the system, and recording airflow rates. Coated specimens are tested with coated sides oriented downward to minimize errors.

Calculations and Reporting The arithmetic mean of multiple readings is calculated alongside the coefficient of variation. Test results related to air permeability are reported along with detailed test conditions, pressure used, material type, and any deviations from the standard method.

Applications

Textile Manufacturing Ensures nonwoven products meet air permeability requirements for comfort, breathability, and functionality.

Quality Control Provides consistent and repeatable measurements during production to monitor fabric uniformity and performance.

Product Development Assists in optimizing fabric designs for specific air permeability needs in medical textiles, filters, hygiene products, protective clothing, and automotive interiors.

Research & Testing Laboratories Acts as a reference method for testing labs conducting comparative studies on various nonwoven materials.

Related Standards

EN ISO 9073-15:2008 is part of a comprehensive series of ISO 9073 standards covering test methods for nonwovens, including:

ISO 9073-1: Determination of mass per unit area

ISO 9073-2: Determination of thickness

ISO 9073-3: Determination of tensile strength and elongation

ISO 9073-4: Determination of tear resistance

ISO 9073-16 to 9073-18: Tests related to water resistance, spray impact, and grab tensile testing

It references other foundational standards such as:

ISO 139: Standard atmospheres for conditioning and testing textiles

ISO 186: Sampling to determine average quality

ISO 10012: Requirements for measurement processes and equipment calibration

Summary

EN ISO 9073-15:2008 serves as a critical international standard for accurately measuring the air permeability of nonwoven textile fabrics. By standardizing test conditions and methodologies, it enables manufacturers, researchers, and quality assurance professionals to reliably assess and control airflow properties essential to product performance and consumer satisfaction. This standard is crucial for industries reliant on breathable and permeable nonwoven materials, supporting innovation and compliance across global textile markets.

EN ISO 9073-15:2008 PDF

Abstract

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Overview

Key Topics

Applications

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Summary

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