oSIST prEN ISO 11092:2025

Textiles - Physiological effects - Measurement of thermal and water-vapour resistance under steady-state conditions (sweating guarded-hotplate test) (ISO/DIS 11092:2025)

ISO 11092:2014 specifies methods for the measurement of the thermal resistance and water-vapour resistance, under steady-state conditions, of e.g. fabrics, films, coatings, foams and leather, including multilayer assemblies, for use in clothing, quilts, sleeping bags, upholstery and similar textile or textile-like products.
The application of this measurement technique is restricted to a maximum thermal resistance and water-vapour resistance which depend on the dimensions and construction of the apparatus used (e.g. 2 m2·K/W and 700 m2·Pa/W respectively, for the minimum specifications of the equipment referred to in ISO 11092:2014).

Textilien - Physiologische Wirkungen - Messung des Wärme- und Wasserdampfdurchgangswiderstands unter stationären Bedingungen (sweating guarded-hotplate test) (ISO/DIS 11092:2025)

Textiles - Effets physiologiques - Mesurage de la résistance thermique et de la résistance à la vapeur d'eau en régime stationnaire (essai de la plaque chaude gardée transpirante) (ISO/DIS 11092:2025)

L'ISO 11092:2014 prescrit des méthodes pour la détermination de la résistance thermique et de la résistance à la vapeur d'eau, en régime stationnaire, de produits tels que matières textiles, films, enductions, mousses et cuir, y compris les assemblages multicouches, qui sont utilisés pour l'habillement, les couettes, les sacs de couchage, les garnitures de siège et produits similaires textiles ou apparentés aux textiles.
L'application de cette technique de mesurage est limitée à des valeurs maximales de résistance thermique et de résistance à la vapeur d'eau qui dépendent des dimensions et de la construction de l'appareil utilisé (par exemple respectivement 2 m2.K/W et 700 m2.Pa/W pour les spécifications minimales de l'équipement auquel il est fait référence dans l'ISO 11092:2014).

Tekstilije - Ugotavljanje fizioloških lastnosti - Merjenje toplotne in parne upornosti pri ustaljenih pogojih (preskus z vročo ploščo, zaščiteno pred izgubo) (ISO/DIS 11092:2025)

General Information

• Status: Not Published
• Public Enquiry End Date: 29-Sep-2025
• ICS: 59.080.01 - Textiles in general
• Technical Committee: ITEK - Textile and textile products
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 04-Aug-2025
• Due Date: 22-Dec-2025
• Ref Project: prEN ISO 11092 - Textiles - Physiological effects - Measurement of thermal and water-vapour resistance under steady-state conditions (sweating guarded-hotplate test) (ISO/DIS 11092:2025)

Relations

• Revised: SIST EN ISO 11092:2014 - Textiles - Physiological effects - Measurement of thermal and water-vapour resistance under steady-state conditions (sweating guarded-hotplate test) (ISO 11092:2014)
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2025
Tekstilije - Ugotavljanje fizioloških lastnosti - Merjenje toplotne in parne upornosti
pri ustaljenih pogojih (preskus z vročo ploščo, zaščiteno pred izgubo) (ISO/DIS
11092:2025)
Textiles - Physiological effects - Measurement of thermal and water-vapour resistance
under steady-state conditions (sweating guarded-hotplate test) (ISO/DIS 11092:2025)
Textilien - Physiologische Wirkungen - Messung des Wärme- und
Wasserdampfdurchgangswiderstands unter stationären Bedingungen (sweating
guarded-hotplate test) (ISO/DIS 11092:2025)
Textiles - Effets physiologiques - Mesurage de la résistance thermique et de la
résistance à la vapeur d'eau en régime stationnaire (essai de la plaque chaude gardée
transpirante) (ISO/DIS 11092:2025)
Ta slovenski standard je istoveten z: prEN ISO 11092
ICS:
59.080.01 Tekstilije na splošno Textiles in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 11092
ISO/TC 38
Textiles — Physiological effects
Secretariat: JISC
— Measurement of thermal and
Voting begins on:
water-vapour resistance under
2025-07-22
steady-state conditions (sweating
Voting terminates on:
guarded-hotplate test)
2025-10-14
Textiles — Effets physiologiques — Mesurage de la résistance
thermique et de la résistance à la vapeur d'eau en régime
stationnaire (essai de la plaque chaude gardée transpirante)
ICS: 59.080.01
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
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WHICH REFERENCE MAY BE MADE IN
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RECIPIENTS OF THIS DRAFT ARE INVITED
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RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 11092:2025(en)
DRAFT
ISO/DIS 11092:2025(en)
International
Standard
ISO/DIS 11092
ISO/TC 38
Textiles — Physiological effects
Secretariat: JISC
— Measurement of thermal and
Voting begins on:
water-vapour resistance under
steady-state conditions (sweating
Voting terminates on:
guarded-hotplate test)
Textiles — Effets physiologiques — Mesurage de la résistance
thermique et de la résistance à la vapeur d'eau en régime
stationnaire (essai de la plaque chaude gardée transpirante)
ICS: 59.080.01
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: [phone]
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 11092:2025(en)
ii
ISO/DIS 11092:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 thermal resistance Rct .1
3.2 water-vapour resistance R .2
et
3.3 water-vapour permeability index i .2
mt
3.4 water-vapour permeability W .2
d
4 Symbols and units. 2
5 Principle . 3
6 Apparatus . 3
6.1 Measuring unit, with temperature and water supply control, .3
6.2 Thermal guard with temperature control .5
6.3 Test enclosure .5
7 Test specimens . 6
7.1 Materials ≤ 5 mm thick .6
7.2 Materials > 5 mm thick .6
8 Test procedure . 7
8.1 Determination of apparatus constants .7
8.1.1 Determination of R .8
ct0
8.1.2 Determination of R .8
et0
8.1.3 Reference material .8
8.1.4 Recalibration.8
8.2 Assembly of test specimens on the measuring unit .9
8.3 Measurement of thermal resistance R .9
ct
8.4 Measurement of water-vapour resistance R .9
et
9 Precision of results . .10
9.1 Repeatability .10
9.2 Reproducibility .10
10 Test report . 10
Annex A (normative) Mounting procedure for specimens containing loose filling materials or
having uneven thickness .12
Annex B (normative) Determination of correction terms for heating power .13
Annex C (informative) Guidance on test specimen assembly for materials prone to swelling . 14
Bibliography .16

iii
ISO/DIS 11092:2025(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents.ISO shall not be held responsible for identifying any or all such patent rights.
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, TC 38, Textiles.
This third edition cancels and replaces the second edition (ISO 11092:2014), which has been technically
revised.
The main changes are as follows:
— Normative references were added as Clause 2
— In 8.1.2.1, the water supplied to the measuring plate was changed to Grade 3 water in accordance with
ISO 3696:1987
— In 8.1.3, footnote 1 was deleted and replaced by a note
— In 9.1 and 9.2, the thermal resistance values have been changed to standard notation
— In 9.1, the precision is no longer only applicable to foams
— In clause 9.2, the reproducibility of the water vapour resistance values has been updated based on the
results from the round robin test in 2025
— Bi
...