ISO 19721:2022
(Main)Plastics — Abrasion test method for artificial turfs using combined UV exposure and mechanical wear
Plastics — Abrasion test method for artificial turfs using combined UV exposure and mechanical wear
This document specifies an abrasion test method for accelerated testing of artificial turfs for use in sports facilities. Combined exposure to simulated solar UV radiation and mechanical wear in simultaneous or sequential modes is the method used. The details of radiation, temperature, and moisture exposure, as well as to mechanical abrasion using soccer shoe studs on rotating drum assembly, are given in this document. NOTE It was determined that simultaneous exposure was more effective than sequential exposure.
Plastiques — Méthode d'essai d'abrasion pour gazons artificiels combinant exposition UV et usure mécanique
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 19721
First edition
2022-11
Plastics — Abrasion test method for
artificial turfs using combined UV
exposure and mechanical wear
Plastiques — Méthode d'essai d'abrasion pour gazons artificiels
combinant exposition UV et usure mécanique
Reference number
ISO 19721:2022(E)
© ISO 2022
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ISO 19721:2022(E)
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© ISO 2022
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ISO 19721:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Test specimens . 2
7 Test conditions .3
7.1 Radiation . 3
7.2 Relative humidity . 3
7.3 Spray cycle . 3
7.4 Exposure conditions . 3
8 Procedure .4
8.1 Conditioning. 4
8.2 Mounting and handling of the test specimen . 4
8.3 Combined exposure. 5
8.3.1 General . 5
8.3.2 Simultaneous exposure . 5
8.3.3 Sequential exposure . 5
8.4 Radiant exposure measurement. 5
9 Determination of the changes . 5
9.1 Change of appearance . 5
9.2 Test of sports functional characteristics . 6
10 Test report . 6
Annex A (informative) Artificial turf . 7
Annex B (informative) Examples of test results . 9
Annex C (informative) Typical test apparatus .14
Bibliography .16
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ISO 19721:2022(E)
Foreword
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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
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This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 6, Ageing,
chemical and environmental resistance.
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ISO 19721:2022(E)
Introduction
The radiant exposure, combined with simultaneous or sequential mechanical stud wear test, can
assess the abrasion resistance of artificial turf used outdoors. The test method developed considers
exposure that provides UV radiant exposure and stud wear. This accelerated test method is to be used
as a screening or qualifying test for artificial turfs for public sports facilities. The test method may not
necessarily correlate to results from exposure to actual use conditions.
The International Organization for Standardization (ISO) draws attention to the fact that it is claimed
that compliance with this document may involve the use of a patent.
ISO takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured ISO that he/she is willing to negotiate licenses under
reasonable and non-discriminatory terms and conditions with applicants throughout the world. In
this respect, the statement of the holder of this patent right is registered with ISO. Information may be
obtained from the patent database available at www.iso.org/patents.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights other than those in the patent database. ISO shall not be held responsible for identifying
any or all such patent rights.
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INTERNATIONAL STANDARD ISO 19721:2022(E)
Plastics — Abrasion test method for artificial turfs using
combined UV exposure and mechanical wear
1 Scope
This document specifies an abrasion test method for accelerated testing of artificial turfs for use in
sports facilities.
Combined exposure to simulated solar UV radiation and mechanical wear in simultaneous or sequential
modes is the method used. The details of radiation, temperature, and moisture exposure, as well as to
mechanical abrasion using soccer shoe studs on rotating drum assembly, are given in this document.
NOTE It was determined that simultaneous exposure was more effective than sequential exposure.
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 4892-1, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance
ISO 4892-2, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps
ISO 4892-3, Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps
EN 15306, Surfaces for outdoor sports areas — Exposure of synthetic turf to simulated wear
DIN 75220, Ageing of automobile components in solar simulation units
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology 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
artificial turf
synthetic fibres made to mimic the natural grass
Note 1 to entry: It is a carpet-like mat consisting of piles (3.2), backing sheet, silica sand, rubber chips and shock
absorption pad.
Note 2 to entry: See Annex A for the details on the construction of artificial turf.
3.2
pile
directional treads or fibres affixed to the backing layer sheet
3.3
abrasion
process of rubbing away pile (3.2) material under contact with stud under load
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ISO 19721:2022(E)
3.4
simultaneous exposure
exposure to UV radiation and abrasion (3.3) occurring at the same time
3.5
sequential exposure
exposure to UV radiation and abrasion (3.3) occurring one after the other
4 Principle
The specimen is exposed to both UV radiation and mechanical wear, either simultaneous or sequential.
To create such a test, an apparatus consisting of an abrasion device, test specimen support and an
artificial radiation source is used. The artificial turf specimen is placed on the specimen support and
is made to come in contact with an abrasion device for cyclic frictional force application at the same
time or in sequence with being subjected to predetermined exposure to radiation, heat and humidity
conditions.
5 Apparatus
For the simultaneous exposure, the test device shall include a stud-cylinder abrasion device, test
specimen support and radiation source; all assembled in an environmental test chamber or room with
temperature and humidity control. A water spray nozzle can also be added.
For sequential exposure, a stud-cylinder abrasion device, and a test chamber meeting the irradiance,
temperature, humidity and wetting, and other requirements for exposure devices in ISO 4892-1 are
required.
A typical test apparatus is given in Annex C.
5.1 Laboratory radiation source, an UVA-340 fluorescent lamp, Xenon arc lamp or metal halide
lamp shall be used. If other radiation source is used, the radiation source shall be reported.
5.1.1 Fluorescent UVA-340 lamp, in accordance with ISO 4892-3, type 1A(UVA-340).
5.1.2 Metal halide lamp in accordance with DIN 75220.
5.1.3 Xenon arc lamp, in accordance with ISO 4892-2, method A (Xenon arc with simulated direct
solar radiation filters).
5.2 Abrasion device, in accordance with EN 15306.
5.3 Spraying system, in accordance with ISO 4892-1.
6 Test specimens
The test specimen shall be at least 800 mm × 400 mm. The uniform abraded surface shall be at least
500 mm × 300 mm. Other sizes may be used upon agreement between the parties involved.
The dimension is changeable only if the irradiance uniformity is satisfied. Different specimen
dimensions may be used provided that the irradiance uniformity on the specimen is assured.
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ISO 19721:2022(E)
7 Test conditions
7.1 Radiation
Unless otherwise specified, the irradiance shall be controlled at the levels specified in Tables 1, 2 and 3.
Other exposure levels may be used if agreed between the parties involved.
7.2 Relative humidity
Unless otherwise specified, the relative humidity or condensation cycle shall be controlled at the levels
specified in Tables 1, 2 and 3. Other exposure levels may be used if agreed between the parties involved.
7.3
...
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