SIST EN ISO 9053-1:2026
(Main)Acoustics - Determination of airflow resistance - Part 1: Static method (ISO 9053-1:2026)
Acoustics - Determination of airflow resistance - Part 1: Static method (ISO 9053-1:2026)
This document specifies the measurement of the determination of the static airflow resistance (see also References[1]and2) in a laminar flow regime, of porous materials for acoustical applications.
Akustik - Bestimmung des Strömungswiderstandes - Teil 1: Verfahren mit statischer Luftströmung (ISO 9053-1:2026)
Dieses Dokument legt die Messung der Bestimmung des statischen Strömungswiderstands (siehe auch Verweisungen [1], [2]) von porösen Materialien für akustische Anwendungen in einer Anordnung mit laminarer Strömung fest.
Acoustique - Détermination de la résistance à l'écoulement de l'air - Partie 1: Méthode statique (ISO 9053-1:2026)
Le présent document spécifie le mesurage de la résistance statique à l’écoulement de l’air (voir également les Références [1]et[2]) en régime d’écoulement laminaire, des matériaux poreux utilisés pour les applications acoustiques.
Akustika - Ugotavljanje upornosti zračnemu toku - 1. del: Metoda statičnega zračnega toka (ISO 9053-1:2026)
General Information
- Status
- Not Published
- Public Enquiry End Date
- 24-Jul-2025
- Technical Committee
- AKU - Acoustics
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 24-Jun-2026
- Due Date
- 29-Aug-2026
Relations
- Effective Date
- 17-Jun-2026
- Effective Date
- 17-Jun-2026
- Effective Date
- 17-Jun-2026
- Effective Date
- 17-Jun-2026
- Effective Date
- 17-Jun-2026
- Effective Date
- 17-Jun-2026
- Effective Date
- 17-Jun-2026
- Effective Date
- 05-Nov-2024
Overview
SIST EN ISO 9053-1:2026 - Acoustics - Determination of airflow resistance - Part 1: Static method (ISO 9053-1:2026) provides a standardized procedure for measuring the static airflow resistance of porous materials under laminar flow conditions. This method is a key element in evaluating materials intended for acoustical applications, focusing on the intrinsic airflow resistance properties that directly impact sound absorption, noise control, and insulation effectiveness.
Understanding and accurately measuring static airflow resistance is vital for manufacturers and designers working with sound-absorbing and insulating materials, as it enables reliable assessment of material performance in real-world acoustic environments.
Key Topics
- Measurement Principle: The standard details a test method that involves subjecting a porous material specimen to controlled, steady, unidirectional airflow and measuring the pressure drop across the specimen.
- Laminar Flow Regime: Tests must be performed in a flow regime ensuring that results are consistent and comparable, eliminating the impact of turbulence.
- Test Equipment: The method specifies the use of standardized measurement cells (cylindrical or rectangular), airflow generation devices, volumetric flow meters, and differential pressure gauges, all of which should be regularly calibrated for accurate results.
- Specimen Preparation: Requirements for specimen size, shape, and thickness are outlined to ensure test reproducibility and reliability. The standard recommends a minimum size and the use of superimposed specimens under certain conditions.
- Calibration Procedures: Periodic use of calibration specimens helps ensure ongoing measurement reliability, with examples of calibration specimen design provided for both high and moderate resistivity values.
- Reporting and Quality Assurance: Guidance is provided on the content of the test report and the necessary information to ensure traceability, such as specimen shape, material type, measurement conditions, and any deviations from the procedure.
Applications
This standard is applicable to a wide range of porous materials used in acoustical engineering, particularly in sectors such as:
- Building and construction: Evaluation of insulation materials for partition walls, ceilings, and flooring systems to ensure effective noise control and sound-proofing.
- Automotive industry: Testing of sound-absorbing materials used in vehicle cabins and engine compartments.
- Industrial acoustics: Analysis of materials designed for noise abatement in machinery housings and manufacturing environments.
- Product development: Material research and quality control for manufacturers producing or specifying products where acoustic performance is critical.
Utilizing the static method for airflow resistance measurement, stakeholders can ensure that materials meet necessary performance criteria prior to installation, helping to achieve compliance with regulatory requirements and optimal noise abatement outcomes.
Related Standards
For a comprehensive approach to assessing airflow resistance and permeability in acoustical applications, consideration should be given to the following related standards:
- ISO 9053-2: Acoustics - Determination of airflow resistance - Part 2: Alternating airflow method
- ISO 9237: Textiles – Determination of the permeability of fabrics to air
- ISO 4638: Polymeric materials, cellular flexible – Determination of air flow permeability
These standards, alongside SIST EN ISO 9053-1:2026, form an integral suite for the acoustic measurement and noise abatement community, ensuring reliable, reproducible, and internationally recognized testing methods.
For organizations involved in the development, specification, and verification of sound insulation and absorption materials, compliance with SIST EN ISO 9053-1:2026 ensures rigor, consistency, and industry acceptance in acoustic material assessment.
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Frequently Asked Questions
SIST EN ISO 9053-1:2026 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Acoustics - Determination of airflow resistance - Part 1: Static method (ISO 9053-1:2026)". This standard covers: This document specifies the measurement of the determination of the static airflow resistance (see also References[1]and2) in a laminar flow regime, of porous materials for acoustical applications.
This document specifies the measurement of the determination of the static airflow resistance (see also References[1]and2) in a laminar flow regime, of porous materials for acoustical applications.
SIST EN ISO 9053-1:2026 is classified under the following ICS (International Classification for Standards) categories: 17.140.01 - Acoustic measurements and noise abatement in general; 91.100.60 - Thermal and sound insulating materials. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 9053-1:2026 has the following relationships with other standards: It is inter standard links to SIST EN 13170:2013+A1:2015, SIST EN 15101-1:2013+A1:2019, SIST EN 14064-1:2019, SIST EN 15101-1:2013, SIST EN 13171:2013+A1:2015, SIST-TP CEN/TR 15226:2006, SIST EN 13162:2013+A1:2015, SIST EN ISO 9053-1:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN ISO 9053-1:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 9053-1:2025
01-julij-2025
Akustika - Ugotavljanje upornosti zračnemu toku - 1. del: Metoda statičnega
zračnega toka (ISO/DIS 9053-1:2025)
Acoustics - Determination of airflow resistance - Part 1: Static airflow method (ISO/DIS
9053-1:2025)
Akustik - Bestimmung des Strömungswiderstandes - Teil 1: Verfahren mit statischer
Luftströmung (ISO/DIS 9053-1:2025)
Acoustique - Détermination de la résistance à l'écoulement de l'air - Partie 1: Méthode
statique (ISO/DIS 9053-1:2025)
Ta slovenski standard je istoveten z: prEN ISO 9053-1
ICS:
17.140.01 Akustična merjenja in Acoustic measurements and
blaženje hrupa na splošno noise abatement in general
91.100.60 Materiali za toplotno in Thermal and sound insulating
zvočno izolacijo materials
oSIST prEN ISO 9053-1:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN ISO 9053-1:2025
oSIST prEN ISO 9053-1:2025
DRAFT
International
Standard
ISO/DIS 9053-1
ISO/TC 43/SC 2
Acoustics — Determination of
Secretariat: DIN
airflow resistance —
Voting begins on:
Part 1: 2025-05-15
Static airflow method
Voting terminates on:
2025-08-07
Acoustique — Détermination de la résistance à l'écoulement de
l'air —
Partie 1: Méthode statique
ICS: 91.100.60
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
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RECIPIENTS OF THIS DRAFT ARE INVITED
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NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 9053-1:2025(en)
oSIST prEN ISO 9053-1:2025
DRAFT
ISO/DIS 9053-1:2025(en)
International
Standard
ISO/DIS 9053-1
ISO/TC 43/SC 2
Acoustics — Determination of
Secretariat: DIN
airflow resistance —
Voting begins on:
Part 1:
Static airflow method
Voting terminates on:
Acoustique — Détermination de la résistance à l'écoulement
de l'air —
Partie 1: Méthode statique
ICS: ISO ics
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
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POTENTIAL TO BECOME STANDARDS TO
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Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 9053-1:2025(en)
ii
oSIST prEN ISO 9053-1:2025
ISO/DIS 9053-1:2025(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 3
5 Equipment . 3
5.1 General .3
5.2 Measurement cell .3
5.3 Device for producing airflow .4
5.4 Device for measuring volumetric airflow .4
5.5 Device for measuring differential pressure .4
5.6 Use of calibration test specimens .5
6 Test specimens . 5
6.1 Shape .5
6.2 Dimensions .6
6.2.1 Lateral dimensions .6
6.2.2 Thickness .6
6.3 Number of test specimens .6
7 Test procedure . 6
8 Precision . 7
9 Test report . 7
Annex A (informative) Estimation of the static airflow resistivity . 8
Bibliography . 9
iii
oSIST prEN ISO 9053-1:2025
ISO/DIS 9053-1:2025(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received (see www.iso.org/patents).
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expressions related to conformity assessment, as well as information about ISO's adherence to the World
Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL:
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 2, Building
acoustics.
This first edition of ISO 9053-1 cancels and replaces ISO 9053-1:2018, which has been technically revised.
The main changes are as follows:
— Figure 1 was corrected;
— addition of a Note to design calibration specimens in 5.6.
A list of all parts in the ISO 9053 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
oSIST prEN ISO 9053-1:2025
DRAFT International Standard ISO/DIS 9053-1:2025(en)
Acoustics — Determination of airflow resistance —
Part 1:
Static airflow method
1 Scope
This document specifies the measurement of the determination of the static airflow resistance (see also [1],
[2]) in a laminar flow regime, of porous materials for acoustical applications.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
airflow resistance
R
quantity defined by
Δp
R=
q
v
where
Δp is the air pressure difference, in pascal, across the test specimen with respect to the atmosphere;
q is the volumetric airflow rate, in cubic metre per second, passing through the test specimen.
v
Note 1 to entry: It is expressed in pascal second per cubic metre.
3.2
specific airflow resistance
R
s
quantity defined by
RR=×A
s
where
oSIST prEN ISO 9053-1:2025
ISO/DIS 9053-1:2025(en)
R is the airflow resistance, in pascal second per cubic metre, of the test specimen;
A is the cross-section area, in square metre, of the test specimen perpendicular to the direction of flow.
Note 1 to entry: It is expressed in pascal second per metre.
3.3
airflow resistivity
σ
quantity defined by the following formula if the material is considered as being homogeneous
R
s
σ =
d
where
R is the specific airflow resistance, in pascal second per metre, of the test specimen;
s
d is the thickness, in metre, of the test specimen in the direction of flow.
Note 1 to entry: lt is expressed in pascal second per square metre.
3.4
linear airflow velocity
u
quantity defined by
q
v
u=
A
where
q is the volumetric airflow rate, in cubic metre per second, passing through the test specimen;
v
A is the cross-sectional area, in square metre, of the test specimen.
Note 1 to entry: lt is expressed in metre per second.
3.5
permeability
k
quantity defined by the following equation if the material is considered as being homogeneous
η
k =
σ
where
−5
η is the dynamic viscosity of air in newton second per square metre (approximately 1,82 × 10 for the
air at 20 °C and 1 atmosphere of static pressure);
σ is the static airflow resistivity in pascal second per square metre, of the test specimen.
Note 1 to entry: lt is expressed in square metres.
oSIST prEN ISO 9053-1:2025
ISO/DIS 9053-1:2025(en)
4 Principle
Figure 1 — Basic principle
The principle of the method, as described in Figure 1, is to measure the pressure drop between the two
free faces of a test specimen (in the form of a circular cylinder or a rectangular parallelepiped) while it is
subjected to a controlled unidirectional airflow.
5 Equipment
5.1 General
The equipment shall consist of:
a) a measurement cell into which the test specimen is placed;
b) a device for producing a steady airflow;
c) a device for measuring the volumetric airflow;
d) a device for measuring the pressure difference across the test specimen;
e) a device for measuring the thickness of the test specimen when it is in position for the test.
All devices used for measurements [c), d), e)] should be calibrated using their conventional calibration
methods at least once every 2 a.
5.2 Measurement cell
The measurement cell shall be in the shape of a circular cylinder or a rectangular parallelepiped (preferably
with a squa
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