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SLOVENSKI STANDARD
01-januar-2023
Tekstilije - Fiziološki učinki - Merjenje prenosa tekočega znoja in pufranja
Textiles - Physiological effects - Measurement of liquid sweat transport and buffering
Textilien - Physiologische Wirkungen - Messung des flüssigen Schweißtransports und
der flüssigen Schweißpufferung
Textiles - Effets physiologiques - Mesurage du transfert de sueur liquide et de l’effet
tampon vis-à-vis de la sueur liquide
Ta slovenski standard je istoveten z: EN 17534:2022
ICS:
59.080.30 Tkanine Textile fabrics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 17534
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2022
EUROPÄISCHE NORM
ICS 59.080.30
English Version
Textiles - Physiological effects - Measurement of liquid
sweat transport and buffering
Textiles - Effets physiologiques - Mesurage du transfert Textilien - Physiologische Wirkungen - Messung des
de sueur liquide et de l'effet tampon vis-à-vis de la flüssigen Schweißtransports und der flüssigen
sueur liquide Schweißpufferung
This European Standard was approved by CEN on 26 September 2022.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17534:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Reagents . 6
5 Test accessories . 6
5.1 Thin foil . 6
5.2 Polyester woven fabric . 6
5.3 Frame (for method B) . 6
5.4 Specimen carrier . 6
6 Measurement and test methods . 7
6.1 General. 7
6.2 Method A . 8
6.2.1 Principle . 8
6.2.2 Test specimens . 9
6.2.3 Test procedure . 9
6.2.4 Evaluation of test results . 10
6.2.5 Physiological assessment of the textile material . 11
6.2.6 Calibration of test apparatus . 11
6.2.7 Precision of results . 11
6.2.8 Test report . 12
6.3 Method B (Modification of Method A) . 12
6.3.1 Principle of test . 12
6.3.2 Test procedure . 13
6.3.3 Evaluation of test results . 13
Annex A (informative) Specimen carrier . 14
Bibliography . 19
European foreword
This document (EN 17534:2022) has been prepared by Technical Committee CEN/TC 248 “Textiles and
textile products”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2023, and conflicting national standards shall be
withdrawn at the latest by May 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
For the assessment of the physiological properties of textiles worn next to the skin, not only their
thermophysiological properties in stationary conditions (thermal and water vapour resistance) are
important, which can be measured according to EN ISO 11092 with the sweating guarded-hotplate (Skin
Model), but also their capacity to buffer in stationary sweat pulses and to transport liquid sweat,
occurring in the practical use of textiles and clothing.
With liquid sweat appearing on the wearer's skin, the textiles take it up and transport it into the next
textile layers or into the environmental air. This so-called buffering capacity and transport of liquid water
(sweat) of a textile is measured quantitatively with the sweating guarded-hotplate, slightly modified from
the design and procedures described in the above standard. A textile is judged to perform better, the more
efficient the transport of sweat from the skin is, and the less liquid sweat remains on the skin.
1 Scope
This document specifies a test method for measuring liquid sweat management properties of knitted,
woven and nonwoven textile fabrics, namely buffering index, sweat transport and sweat uptake.
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.
EN ISO 3696, Water for analytical laboratory use — Specification and test methods (ISO 3696)
EN ISO 11092, Textiles — Physiological effects — Measurement of thermal and water-vapour resistance
under steady-state conditions (sweating guarded-hotplate test) (ISO 11092)
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:
— IEC Electropedia: available at
— ISO Online browsing platform: available at
3.1
uptake
buffering
effect measured by the quantity of liquid water remaining in the textile material in grams during and after
a period of time in contact with water
3.2
sweat transport
F
amount of liquid water (sweat) in grams taken up by 1 m of the textile material and within 1 h
transported into ambient air with specific temperature and relative humidity
3.3
liquid sweat management
combining of the uptake or buffering of the sweat from the skin, on one hand, and of the transport of the
sweat from the skin to the ambience, on the other hand
3.4
moisture permeability
F
effect measured by the amount of liquid water in grams taken up by 1 m of the textile material and within
1 h transported into ambient air with a water vapour pressure gradient of 1 hPa between the two sides
of the textile material
3.5
sweat uptake
G
effect measured by the portion of liquid water remaining in the textile material in grams after 15 min of
contact with water
3.6
buffering index
K
f
ratio of the sum of liquid water transported through the textile material (G ) and remaining in the textile
material (G ) in grams after 15 min of contact with water, to the total amount of water injected into the
textile material (G ) in grams
4 Reagents
Grade 3 water compliant with EN ISO 3696.
5 Test accessories
5.1 Thin foil
A thin foil sized 25 cm × 25 cm which is water and water vapour impermeable. A suggested material for
the foil is PET (polyethylene terephthalate) with a thickness of 0,1 mm. The thin foil shall present a good
thermal stability and a good planarity to enable close contact with the plate of the skin-model.
NOTE The foil prevents the water from being wicked into the measuring unit for the duration of the test.
5.2 Polyester woven fabric
2 1)
A polyester woven fabric with a mass of (100 ± 3) g/m and a size of 20 cm × 20 cm .
NOTE This fabric simulates distribution of sweat on skin.
Water absorbency of this fabric can be checked using the method described in Annex A of
ISO 17617:2014 (drop test).
When soiling is visible, this polyester woven fabric shall be cleaned. The cleaning procedure is as follows:
the polyester woven fabric is rinsed in distilled water at room temperature until the soiling has been
removed. Then the fabric is air-dried at room temperature.
5.3 Frame (for method B)
A frame made of material with a low thermal conductance, for example synthetic resin.
Dimensions of the frame are:
— outer size: 300 mm × 300 mm;
— inner size: 230 mm × 230 mm;
— thickness: (2 ± 0,1) mm.
5.4 Specimen carrier
A specimen carrier, see Figure 1.
1)
A suitable reference for the polyester woven fabric is 'Vektron 4003' produced by Klopman International, Berliner Strasse 101, D-40880
Ratingen, Germany. This information is given for the convenience of users of this document and does not constitute an endorsement by
CEN/TC248 of the product named. Equivalent products may be used if they can be shown to lead to the same results.
Key
1 test specimen
2 spacers
3 clips (closed position)
4 mechanism to open and close the clips
5 lid
6 gasket
Figure 1 — Specimen carrier in reverse position
The lid shall be large enough to be laid down on the frame and cover the sample without touching it.
Spacer height shall be 3 mm.
The use of the specimen carrier is illustrated in Annex A, Figures A.1 to A.8.
6 Measurement and test methods
6.1 General
Two methods are described. Method A implies a technical modification by adding a gas meter to the
sweating guarded-hotplate. If it is not possible to modify the equipment, method B can be used on any
sweating guarded-hotplate compliant with EN ISO 11092.
It has been shown that both metho
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