ISO 9348:2026

International
Standard
ISO 9348
First edition
Textiles — Determination of the
2026-05
anti-contamination propensity of
fabrics to particulate matter —
Digital measurement method
Textiles — Détermination de la propension des étoffes à la
décontamination par les particules — Méthode de mesurage
numérique
Reference number
© ISO 2026
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ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus and material . 2
6 Conditioning and testing atmosphere. 4
6.1 Test particle conditioning .4
6.2 Test atmosphere and conditioning .4
7 Preparation of test . 4
7.1 Test specimens.4
7.2 Test specimen canister .4
8 Procedure . 5
9 Assessment . . 5
9.1 Image acquisition method .5
9.2 Image acquisition procedure .5
9.3 Image analysis.5
9.4 Calculation and expression of results .6
10 Test report . 6
Annex A (informative) Test particle . 7
Bibliography . 8

iii
Foreword
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This document was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 24, Conditioning
atmospheres and physical tests for textile fabrics.
Any feedback or questions on this document should be directed to the user’s national standards body. A
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iv
Introduction
In woven fabrics, particulate matter (PM) adheres to the fabric surface due to electrostatic or surface
properties. In knitted and nonwoven fabrics, PM penetrates into the fabric structure, following a
different mechanism. The conditions and procedures outlined in this test method are designed to ensure
reproducibility and precision specifically when applied to woven fabrics.

v
International Standard ISO 9348:2026(en)
Textiles — Determination of the anti-contamination
propensity of fabrics to particulate matter — Digital
measurement method
1 Scope
This document specifies the digital measurement method for the determination of the anti-contamination
of fabrics.
This method is applicable to woven fabrics which have or have not been given an anti-contamination to
particulate matter finish. It is especially suitable for measuring apparel fabrics. It is not intended for use in
fabrics that react to UV light or allow particulate matter to penetrate into the structure of the fabric. It is not
applied to fabrics for personal protective equipment.
NOTE 1 Particulate matter (PM) is solid particles suspended in ambient air defined in ISO 16890-1.
NOTE 2 In woven fabrics, particulate matter (PM) adheres to the fabric surface due to electrostatic or surface
properties. In knitted and nonwoven fabrics, PM penetrates into the fabric structure, following a different mechanism.
The conditions and procedures outlined in this test method are designed to ensure reproducibility and precision
specifically when applied to woven fabrics.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 139, Textiles — Standard atmospheres for conditioning and testing
3 Terms and de
...