EN ISO 9053-1:2026

Overview

EN ISO 9053-1:2026, published by CEN and based on ISO/FDIS 9053-1:2026, establishes a standardized static method for determining the airflow resistance of porous materials used in acoustical applications. The document specifically addresses measurement within a laminar flow regime, ensuring consistency and accuracy when evaluating materials intended for sound insulation, sound absorption, or other noise control functions.

Airflow resistance is a critical property influencing the acoustic effectiveness of materials such as foams, fibrous panels, and textiles. This standard supports materials testing in construction, automotive, and industrial acoustics, helping manufacturers, laboratories, and quality assurance teams to reliably assess products for optimal sound attenuation and insulation.

Key Topics

• Static Airflow Resistance

  • Measurement and calculation of the static airflow resistance of porous materials.
  • Emphasis on achieving laminar, unidirectional airflow for accuracy.

• Test Methods and Equipment

  • Definition of equipment requirements: measurement cell, airflow generators, devices for measuring volume flow and differential pressure, and thickness measurement tools.
  • Guidance on specimen shape, lateral dimensions, thickness, and preparation.
  • Use of calibration specimens to validate hardware and software performance.

• Measurement Procedure

  • Step-by-step instructions for preparing and sealing test specimens.
  • Execution of tests at low, controlled airflow velocities to capture resistance values pertinent to acoustic applications.
  • Data collection, including recording pressure drops and calculated resistances.

• Reporting Requirements

  • Comprehensive reporting including test parameters, specimen details, measurement conditions, and any deviations from the standard methodology.
  • Statistical analysis of results to ensure repeatability and reliability.

Applications

EN ISO 9053-1:2026 is crucial for:

• Building and Construction

  • Evaluating and certifying sound-insulating and sound-absorbing construction materials, such as wall or ceiling panels and floor underlays.
  • Contributing to the design of buildings with enhanced acoustic comfort.

• Automotive and Transport

  • Testing acoustic materials used in vehicles, trains, and aircraft to reduce noise transmission.
  • Ensuring compliance with OEM and regulatory acoustic performance criteria.

• Product Development and Quality Control

  • Supporting manufacturers of porous materials in research, development, and quality assurance by providing a repeatable and internationally recognized testing protocol.

• Research and Laboratory Testing

  • Allowing laboratories and research institutions to benchmark materials and compare performance across products or design variations.

Keywords: airflow resistance, static airflow method, acoustic materials, sound insulation, test procedure, porous materials, laminar flow, building acoustics, noise control, material testing

Related Standards

• ISO 9053-2: Acoustics - Determination of airflow resistance - Part 2: Dynamic airflow method
• ISO 9237: Textiles - Determination of the permeability of fabrics to air
• ISO 4638: Polymeric materials, cellular flexible - Determination of air flow permeability

By referencing these standards alongside EN ISO 9053-1:2026, professionals ensure a comprehensive approach to characterizing acoustic materials under various testing scenarios.

Adhering to EN ISO 9053-1:2026 ensures accurate, repeatable determination of static airflow resistance for acoustical materials, underpinning effective noise control solutions across industries.