prEN ISO 4484-3
(Main)Textiles and textile products - Microplastics from textile sources - Part 3: Measurement of collected material mass released from textile end products by domestic washing method (ISO/FDIS 4484-3:2023)
Textiles and textile products - Microplastics from textile sources - Part 3: Measurement of collected material mass released from textile end products by domestic washing method (ISO/FDIS 4484-3:2023)
N/A
Textilien und textile Erzeugnisse - Mikroplastik aus textilen Quellen - Teil 3: Messung der gesammelten Materialmasse, die von textilen Fertigerzeugnissen durch Haushaltswäsche freigesetzt wird (ISO/FDIS 4484‑3:2023)
Textiles et produits textiles - Microplastiques d'origines textiles - Partie 3: Mesurage de la masse de matériaux collectés libérés par les produits finis textiles par la méthode de lavage domestique (ISO/FDIS 4484-3:2023)
Tekstilije in tekstilni izdelki - Mikroplastika iz tekstilnih virov - 3. del: Merjenje mase zbranega materiala, sproščenega iz končnih tekstilnih izdelkov pri metodi pranja v gospodinjstvu (ISO/DIS 4484-3:2021)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 4484-3:2022
01-marec-2022
Tekstilije in tekstilni izdelki - Mikroplastika iz tekstilnih virov - 3. del: Merjenje
mase zbranega materiala, sproščenega iz končnih tekstilnih izdelkov pri metodipranja v gospodinjstvu (ISO/DIS 4484-3:2021)
Textiles and textile products - Microplastics from textile sources - Part 3: Measurement of
collected material mass released from textile end products by domestic washing method
(ISO/DIS 4484-3:2021)Textilien und textile Erzeugnisse - Mikroplastik aus textilen Quellen - Teil 3: Messung der
gesammelten Materialmasse, die von textilen Fertigerzeugnissen durchHaushaltswäsche freigesetzt wird (ISO/DIS 4484‑3:2021)
Textiles et produits textiles - Microplastiques d'origines textiles - Partie 3: Mesurage de la
masse de matériaux collectés libérés par les produits finis textiles par la méthode de
lavage domestique (ISO/DIS 4484-3:2021)Ta slovenski standard je istoveten z: prEN ISO 4484-3
ICS:
13.020.40 Onesnaževanje, nadzor nad Pollution, pollution control
onesnaževanjem in and conservation
ohranjanje
59.080.01 Tekstilije na splošno Textiles in general
oSIST prEN ISO 4484-3:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 4484-3:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4484-3
ISO/TC 38 Secretariat: JISC
Voting begins on: Voting terminates on:
2021-12-24 2022-03-18
Textiles and textile products — Microplastics from textile
sources —
Part 3:
Measurement of collected material mass released from
textile end products by domestic washing method
Textiles et produits textiles - Microplastiques d'origines textiles —
Partie 3: Mesure de la masse de matériaux collectés libérés par les produits finis textiles par la méthode de
lavage domestiqueICS: 59.080.01; 13.020.40
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 4484-3:2021(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2021
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oSIST prEN ISO 4484-3:2022
ISO/DIS 4484-3:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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© ISO 2021 – All rights reserved
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oSIST prEN ISO 4484-3:2022
ISO/DIS 4484-3:2021(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 Material.......................................................................................................................................................................................................................... 2
7 Test condition ..........................................................................................................................................................................................................3
7.1 Standard atmosphere for preparation of specimens and mass measurement ............................. 3
7.2 Test atmosphere for washing process ............................................................................................................................... 3
8 Specimen preparation ........................................................................................................................................... .........................................3
9 Test procedure .......................................................................................................................................................................................................3
9.1 Blank test ..................................................................................................................................................................................................... 3
9.1.1 Mounting of the filter bag ........................................................................................................................................... 3
9.1.2 Washing procedure .......................................................................................................................................................... 3
9.1.3 Remove of the filter bag ............................................................................................................................................... 3
9.2 Test for sample ........................................................................................................................................................................................ 3
9.2.1 Mounting of the filter bag ........................................................................................................................................... 3
9.2.2 Washing procedure of sample ................................................................................................................................ 4
9.2.3 Washing procedure of empty tub ........................................................................................................................ 4
9.2.4 Remove of the filter bag ............................................................................................................................................... 4
9.3 Number of tests for repeatability .......................................................................................................................................... 4
9.4 Weighing of membrane filter and bottle ......................................................................................................................... 4
9.5 Washing out of the collected materials ............................................................................................................................ 4
9.6 Drying membrane filter with the collected materials and bottle ............................................................. 4
9.7 Weighing of membrane filter with collected materials and bottle .......................................................... 5
10 Calculation .................................................................................................................................................................................................................. 5
10.1 Calculation for each test run ...................................................................................................................................................... 5
10.2 Calculation of average for 3 test runs ................................................................................................................................ 5
11 Repeatability and producibility .......................................................................................................................................................... 6
12 Test report .................................................................................................................................................................................................................. 6
Annex A (informative) Filter fabric specification and filter bag construction .......................................................7
Annex B (Normative) Cleaning method of washing machine ................................................................................................... 9
Annex C (Informative) Number of cleaning after test washing ............................................................................................13
Annex D (Informative) Detergent ........................................................................................................................................................................14
Annex E (Informative) Repetition test condition and an example of repetition test....................................15
Annex F (Informative) Repeatability and reproducibility ........................................................................................................18
Annex G (Informative) Amount of specimen ............................................................................................................................................20
Annex H (Informative) Recovery rate of the fibre fragments ................................................................................................23
Annex I (Informative) Filter pore size ............................................................................................................................................................24
Bibliography .............................................................................................................................................................................................................................26
iii© ISO 2021 – All rights reserved
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oSIST prEN ISO 4484-3:2022
ISO/DIS 4484-3:2021(E)
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).Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
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
www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 38, Textiles.
A list of all parts in the ISO 4484 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.© ISO 2021 – All rights reserved
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Introduction
Regarding human life, daily washing of clothes generates fibre fragments, which are discharged from
washing machine, passed through inappropriate or no wastewater treatments, flow into the river, and
then flow out into the ocean as the final sink.Many papers have been published on the fibre fragments that are discharged from the washing of textile
products and are of great concern in the apparel industry. Among them, there is no clear evaluation
standard, and therefore they are adopting their own evaluation conditions.The textile end product mentioned here is a finished clothing product such as shirt, pants, fleece, blouse,
etc., the home textile end products such as a blanket, a rug, etc., and does not include a cut test sample
of the fabric or the products.Although there are many types of washing machines used at home, ISO has developed the ISO 6330
domestic washing test method, which describes the domestic washing machines and test conditions.
In addition, a care label specified by ISO 3758 is attached to textile products worldwide, and this care
label specifies washing conditions as well.The purpose of this test method is to collect the fibre fragments, actually that is the collected materials
that are discharged from the domestic washing machine during washing.Due to the complicated structure of the washing machine, the cleaning of the washing machines is very
important issue and this document proposes the verification of the cleanness of washing machine.
The identification or quantification of components contained in the collected material during washing
will be investigated by applying the ISO 4484-2.It is considered that this information can be utilized by the textile industry for the development of
clothes, textile products, etc.© ISO 2021 – All rights reserved
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oSIST prEN ISO 4484-3:2022
DRAFT INTERNATIONAL STANDARD ISO/DIS 4484-3:2021(E)
Textiles and textile products — Microplastics from textile
sources —
Part 3:
Measurement of collected material mass released from
textile end products by domestic washing method
1 Scope
This document specifies a method of measurement of the collected material mass released from
outlet of washing machine described in ISO 6330 during washing of textile end products by a washing
condition indicated by care label of ISO 3758.If the countries use the own care label system, set the washing condition indicated by the care label.
This document applies to all textile end products which are composed of all fibres such as natural fibres,
and man-made fibres, including mixture of the fibres.The textile end products applied for this test method are clothing, garments, such as fleece, shirts,
trousers, blouse, etc., and home textile end products, such as, blankets, rugs, curtains, etc. This
document is not applicable to fabrics and cut textile products, and the test for washing machines and
detergents as well.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 139, Textiles — Standard atmospheres for conditioning and testingISO 3696, Water for analytical laboratory use — Specification and test methods
ISO 3758, Textiles — Care labelling code using symbols
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.
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
collected material
material collected by the filter attached at the outlet hose of washing machine during washing, which
include fibre fragments and others© ISO 2021 – All rights reserved
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3.2
textile end products
consumer textile-products, such as garments, clothing, etc., home textiles products, such as blankets,
rugs, curtains, etc., and industrial textile products, such as uniforms, etc.4 Principle
A given mass of textile end product is washed in a washing machine under certain conditions
temperature and mechanical action for a given number of washing cycles. The material shed during the
washing is collected and weighed after its collection using a filter bag which is attached at the outlet
hose of the washing machine.5 Apparatus
5.1 Washing machine, specified in ISO 6330 and remove the built-in filters attached to the washing
machine. The cleanness of the washing machine shall be checked according to Annex B.
5.2 Filter bag, with an opening size of woven fabric of (10 ± 4) μm and the specification for the
materials and the construction is described in Annex A. The preparatory work on the pore size of the
filter is shown in Annex I and recovery rate of fibre fragments is shown in Annex H.
5.3 Analytical balance, with a resolution of 0,1 mg or better.5.4 Balance, with a resolution of 1 g or better.
5.5 Oven, capable of maintaining a temperature of (105 ± 2) °C, without fan.
5.6 Cable ties, made of synthetic resin.
5.7 Polycarbonate membrane filter, approximately 47 mm in diameter with 10 µm pore size.
Stainless steel filter is also available.5.8 Weighing bottle or dish, with a minimum diameter, approximately 47 mm, with a lid.
5.9 Vacuum filtration device, consisting of separating sintered filter platform and funnel, with
vacuum pump.5.10 Squeezable wash bottle.
5.11 Water, distilled or grade 3 according to ISO 3696.
5.12 Tweezers.
5.13 Glass beaker, with a minimum capacity of 1 000 ml.
5.14 Desiccator, with drying agent.
6 Material
6.1 Reference detergent, with liquid form, without optical brightener (Another designation is
AATCC HE standard reference detergent as shown in Annex D).© ISO 2021 – All rights reserved
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7 Test condition
7.1 Standard atmosphere for preparation of specimens and mass measurement
The conditions for specimen preparation and mass measurement are at the temperature of (20 ± 2) °C
and relative humidity of (65 ± 4) % according to ISO 139.7.2 Test atmosphere for washing process
The condition for the washing process is ambient condition.
8 Specimen preparation
One kind of textile end products is applied for this test and do not mix the different kind of textile end
products in one test. The amount of the specimens for one test of this test method (S ) is at least two
textile end products and the maximum dry volume which is a half of the washing tub. 3 sets of the
sample are prepared for this test for 3 test runs.The amount of the specimens could affect to the test result which is shown in Annex G as an example.
Prepare number of the specimens as for the test. Condition the test specimens according to ISO 139
5.3 Pre-conditioning and 5.4 Conditioning. Weigh the conditioned total specimen by the balance (5.4).
Record the mass of the total specimen (M ) to an accuracy of 1 g.Describe the actual weight of the total specimens put into washing machine in the test report.
9 Test procedure9.1 Blank test
9.1.1 Mounting of the filter bag
Mount the filter bag (5.2) to the outlet hose of the washing machine (5.1) and tied up by cable tie (5.6).
9.1.2 Washing procedureMake sure there is nothing in the washing tub and run the washing program once. The washing program
is the same as 9.2.2.9.1.3 Remove of the filter bag
After confirming that the water in the washing tub has been completely drained, take the filter bag off
from outlet hose.Follow the next steps from 9.4 to 9.7 for wash out the filter bag and measurement collected material
and 10 for calculation and record the result in the test report.9.2 Test for sample
9.2.1 Mounting of the filter bag
Mount the filter bag (5.2) to the outlet hose of the washing machine (5.1) and tied up by cable tie (5.6).
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9.2.2 Washing procedure of sample
Put the test specimens into the washing tub and start a washing program in accordance with the care
label or, if there is no label, a washing program agreed between the interested parties for one cycle of
the washing program.The detergent (6.1) may be used for washing test and the preferable detergent is introduced in Annex D.
When taking procedure of the repeated washing agreed by the interested parties, repeat the washing
cycle until determined cycles of repetition in reference to Annex E. An example of the result of the
repeated washing test is shown in Annex E.For the repeated washing test, the number of repetition and timing of the collection of the collected
materials are determined between the interested parties. After completion of the washing program,
remove the test specimens from the washing machine.9.2.3 Washing procedure of empty tub
Repeat non-load running of the washing machine twice as for to wash out the remaining materials from
the washing machine.The results based on the number of washing procedure of empty tub after washing the specimen are
described in Annex C as an example.9.2.4 Remove of the filter bag
After confirming that the water in the washing tub has been completely drained, take the filter bag off
from outlet hose.9.3 Number of tests for repeatability
For the remaining two sets of specimens prepared, use the washing machine continuously for operations
9.2. In total, the number of samples tested separately is 3 sets.9.4 Weighing of membrane filter and bottle
Weigh 4 polycarbonate membrane filters (5.7) with weighing bottles (5.8) as a set by the analytical
balance (5.3). Record the mass of each set of membrane filter and bottle before testing (M ) to an
accuracy of 0, 1 mg by using tweezers (5.12) for handling of membrane filter. To prevent contamination
from the environment, the membrane filter should be kept in a weighing bottle.9.5 Washing out of the collected materials
Turn the filter bag described in 9.2.4 over and wash in a separate glass beaker (5.14) containing
1 l of water (5.11). Set the membrane filter prepared in 9.4 on a vacuum filtration device (5.9). This
suspension is filtered through the filter using the vacuum filtration device. Add 1 l of fresh water (5.11)
to the beaker again, wash the filter bag again and filter the suspension. Repeat the washing and filtering
operations from this filter bag at least twice. Finally, the surface of the filter bag and the inside of the
beaker are washed with running water (5.11) using a washing bottle (5.10), and the suspension is also
filtered by the vacuum filtration device.9.6 Drying membrane filter with the collected materials and bottle
The membrane filter with collected materials is returned in the same bottle used in 9.4 and dried
temporarily for 2 h at (105 ± 2) °C in the oven (5.5). Then place the bottle with the membrane filter and
collected materials in desiccator to cool down to the room temperature.© ISO 2021 – All rights reserved
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9.7 Weighing of membrane filter with collected materials and bottle
Condition the membrane filter with the collected materials and the bottle under standard atmospheres
as described in 7.1.Weigh the conditioned membrane filter with the collected materials and the bottle at to the nearest
0,1 mg by the analytical balance (5.3). At this time, weigh several times at intervals of 1 h or more.
The mass is determined as the weighed value that shows a difference compared to the former and
subsequent measurements within 0,1 % of the subsequent value. Record the mass of the membrane
filter with collected materials and the bottle (M ).10 Calculation
10.1 Calculation for each test run
The mass of the collected materials, C in mg is calculated by the following equation (1).
C = M – M (1)m f2 f1
where
C is the mass of the collected materials during washing in mg;
M is the mass of the membrane filter and weighing bottle before testing in mg;
M is the mass of the membrane filter with the corrected materials and weighing bottle after test
in mg;Mass of the collected materials per a textile end product, C in mg / product is calculated by the
equation (2).C = C / S (2)
mp m n
where
C is the mass of the collected materials per a textile end product in mg/product;
C is the mass of the collected materials during washing in mg;S is the number of test specimens.
Mass of the collected materials per the mass of the textile end products, C in mg/kg is calculated by
the equation (3).C = (C × 1 000) / M (3)
mw m p
where
C is the mass of the collected materials per mass of textile end product in mg/kg;
C is the mass of the collected materials during washing in mg;M is the mass of test specimens in g.
10.2 Calculation of average for 3 test runs
Take averages of 3 test runs for C , C and C as the test results.
m mp mw
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11 Repeatability and producibility
An example of the test results of the interlaboratory test according to this document is shown in
Annex F.12 Test report
The test report shall include the following information:
a) a reference to this document, i.e. ISO 4484-3: 202x;
b) date of the test;
c) type of a washing machine and test conditions;
d) test method (number of washing cycles, etc.);
e) test environment conditions;
f) the mass of blank test;
g) the average mass of the collected materials during washing;
h) the average mass of the collected materials per a textile end product;
i) the average mass of the collected materials per mass of textile end product;
j) all details necessary for identification of sample tested;
k) any deviation from the procedure;
l) any unusual features observed.
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Annex A
(informative)
Filter fabric specification and filter bag construction
A.1 Fabric structure for filter bag
The image of the mesh fabric is shown in the figure A.1 as an example and the product specification by
manufacturer is as follows,a) Fibre material: 100 % Nylon monofilament yarn
b) Weave structure: 2/2 twill weave
c) Linear density (dtex): warp, 9, weft, 9
d) Weave density (T/cm): warp, 198, weft, 184
e) Mass of unit area (g/m ): 35
Figure A.1 — Photo of a nylon monofilament mesh filter as an example
A.2 Filter bag construction
This is an example of the filter bag construction. The other construction of the filter can be applied for
the purpose of the collecting the materials from the outlet hose of the washing machine.
a) Shape: Rectangular form.b) Bag dimension in mm: The longer side is approximately 600 mm and the shorter side is
approximately 90 mm which includes bonding allowance approximately 15 mm as shown in
Figure A.2 by dark thicker line.c) Bonding: The step for the formation of filter bag is shown in Figure A.2. The filter fabric is heat-cut
in rectangular fabric (1). The welder tape is attached in three sides (2). The fabric is folded in two
...
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