ISO 18080-2:2015

INTERNATIONAL ISO
STANDARD 18080-2
First edition
2015-12-15
Textiles — Test methods for
evaluating the electrostatic
propensity of fabrics —
Part 2:
Test method using rotary mechanical
friction
Textiles — Méthodes d’essai pour l’évaluation de la propension des
étoffes électrostatique —
Partie 2: Méthode d’essai de frottement mécanique rotatif
Reference number
©
ISO 2015
© ISO 2015, Published in Switzerland
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ii © ISO 2015 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Conditioning and testing atmosphere . 2
6 Apparatus . 2
7 Preparation of specimen . 4
7.1 Sampling . 4
7.2 Cleansing of sample . 4
7.2.1 General. 4
7.2.2 Wash by water . 4
7.2.3 Dry cleaning . 5
7.3 Conditioning of sample . 5
8 Preparation for the apparatus . 5
8.1 Specimen thickness . 5
8.2 Adjustment of the height of detector electrode . 5
8.3 Adjustment of the height of rubbing cloth clamps . 5
8.4 Connection to recording device . 5
9 Testing method . 5
10 Test report . 6
Annex A (informative) Interpretation of the test result . 7
Annex B (informative) Round robin test result . 8
Bibliography .14
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) are worldwide federations of national standards bodies (ISO member bodies and IEC
national committees). The work of preparing International Standards is normally carried out through
ISO and IEC 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 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).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committees responsible for this document are Technical Committee ISO/TC 38, Textiles and
IEC/TC 101 Electrostatics as JWG 26, Antistatic, in the lead of ISO/TC 38.
ISO 18080 consists of the following parts, under the general title Textiles — Test methods for evaluating
the electrostatic propensity of fabrics:
— Part 1: Test method using corona charging
— Part 2: Test method using rotary mechanical friction
— Part 3: Test method using manual friction
— Part 4: Test method using horizontal mechanical friction
iv © ISO 2015 – All rights reserved

Introduction
In addition to safety hazards and damage or disruption of sensitive electronic devices and systems
which are covered by other International Standards, electrostatic charging of clothing can also cause
problems of clinging, uncomfortable shocks and the attraction of airborne dust and other contaminants.
Clothing designed to avoid airborne dust contamination is required in a number of expanding industries
relating to precision technology, biotechnology, food, hygiene, etc. It is also generally desirable to have
clothing that does not cling or cause uncomfortable shocks.
Test methods are required to evaluate the propensity of fabrics used to make clothing designed to avoid
problems associated with electrostatic charging. Test methods are specified in a number of National
and International Standards, including those published by ISO and IEC. However, the relationship
between measurable electrostatic properties and end use performance is rather complex and may
require a combination of different test methods depending on application.
The test method described in this International Standard is one of a number of test methods that can be
used to evaluate the electrostatic propensity of textile materials. Definitive performance requirements
are not given, but guidance on the interpretation of results is given in informative Annex A. The
qualitative interpretation scheme is based on anecdotal experience in industry in controlling clinging,
uncomfortable shocks and attraction of particulate contaminants. Nevertheless, it is provided for
guidance only and users of this International Standard are advised to check its validity for their own
applications.
This test method simulates electrostatic charging typically experienced in wearing conditions. The
standard rubbing cloths and mechanical conditions have been selected from long experience.
INTERNATIONAL STANDARD ISO 18080-2:2015(E)
Textiles — Test methods for evaluating the electrostatic
propensity of fabrics —
Part 2:
Test method using rotary mechanical friction
1 Scope
This part of ISO 18080 specifies a test method using rotary mechanical friction with measurement
of the friction-charged electrostatic potential on specimens of fabric. The test method is suitable for
fabrics of all types of composition and construction that are capable of withstanding frictional charging.
Some fabrics, e.g. fabrics of low strength or loose construction, may not be physically capable of
withstanding the mechanical friction used in this test method or may give false results. In such cases,
the test method described in ISO 18080-1 can be used to evaluate electrostatic propensity.
The test method described may not be suitable for evaluating garments and garment materials in
relation to safety of personnel and protection of electrostatic discharge sensitive devices.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 105-F01, Textiles — Tests for colour fastness — Part F01: Specification for wool adjacent fabric
ISO 105-F02, Textiles — Tests for colour fastness — Part F02: Specification for cotton and viscose
adjacent fabrics
ISO 3175-2, Textiles — Professional care, drycleaning and wetcleaning of fabrics and garments — Part 2:
Procedure for testing performance when cleaning and finishing using tetrachloroethene
ISO 3175-3, Textiles — Professional care, drycleaning and wetcleaning of fabrics and garments — Part 3:
Procedure for testing performance when cleaning and finishing using hydrocarbon solvents
ISO 5084, Textiles — Determination of thickness of textiles and textile products
ISO 6330, Textiles — Domestic washing and drying procedures for textile testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
antistatic
property of a material that reduces its propensity to acquire electrostatic charges or allows electrostatic
charges to dissipate quickly
3.2
friction-charged electrostatic potential
potential generated on a material by friction with another or same material obtained as voltage
3.3
conductive
providing a sufficiently high conductivity so that potential differences over any parts of a material or
object are not sufficiently large as to be of practical significance
Note 1 to entry: In general, a conductive material has a resistance below about 10 Ω, but different standards may
define different resistance ranges for this term.
4 Principle
A fabric specimen is mounted on a rotary drum and mechanically rubbed against a stationary rubbing
cloth as the drum rotates. The electrostatic potential caused by the friction between the specimen and
the rubbing cloth is measured by a detector electrode during the rotation cycle.
5 Conditioning and testing atmosphere
Unless otherwise agreed or specified, the atmosphere for conditioning and testing shall be a
temperature of (20 ± 2) °C and a relative humidity of (40 ± 4) %. If a different temperature or humidity
is used for conditioning or testing, record it in the test report.
NOTE For measurements, refer to ISO 139.
6 Apparatus
6.1 Testing apparatus, one possible test apparatus is shown in Figures 1 to 3 as an example with
further details shown below. Other apparatus may also be used after appropriate validation.
6.2 Rotary drum (Figure 1, key 5), aluminium drum with specimen mounting holders. The
outside diameter of the drum is 150 mm ± 1 mm, the width is 60 mm ± 1 mm, and it is rotated at
(400 ± 1) rpm by a motor.
— Mounting pedestal for specimen (Figure 1, key 3, and Figure 2), made
...