prEN ISO 23999

SLOVENSKI STANDARD
01-februar-2025
Netekstilne talne obloge - Ugotavljanje dimenzijske stabilnosti in gubanja
(navpična deformacija) po izpostavitvi toploti (ISO/DIS 23999:2024)
Resilient floor coverings - Determination of dimensional stability and curling (vertical
deformation) after exposure to heat (ISO/DIS 23999:2024)
Elastische Bodenbeläge - Bestimmung der Maßhaltigkeit und Schüsselung (vertikale
Verformung) nach Wärmeeinwirkung (ISO/DIS 23999:2024)
Revêtements de sol résilients - Détermination de la stabilité dimensionnelle et de
l'incurvation après exposition à la chaleur (ISO/DIS 23999:2024)
Ta slovenski standard je istoveten z: prEN ISO 23999
ICS:
97.150 Talne obloge Floor coverings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 23999
ISO/TC 219
Resilient floor coverings —
Secretariat: NBN
Determination of dimensional
Voting begins on:
stability and curling (vertical
2024-12-10
deformation) after exposure to heat
Voting terminates on:
ICS: 97.150
2025-03-04
THIS DOCUMENT IS A DRAFT CIRCULATED
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Reference number
ISO/DIS 23999:2024(en)
DRAFT
ISO/DIS 23999:2024(en)
International
Standard
ISO/DIS 23999
ISO/TC 219
Resilient floor coverings —
Secretariat: NBN
Determination of dimensional
Voting begins on:
stability and curling (vertical
deformation) after exposure to heat
Voting terminates on:
ICS: 97.150
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 2024
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
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BE CONSIDERED IN THE LIGHT OF THEIR
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Published in Switzerland Reference number
ISO/DIS 23999:2024(en)
ii
ISO/DIS 23999:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
4.1 General .2
4.2 Dimensional stability .2
4.3 Curling (vertical deformation) .2
5 Apparatus . 2
5.1 Oven.2
5.2 Support plates .2
6 Measuring devices . 3
6.1 Measurement devices for determination of curling (vertical deformation) .3
6.2 Measurement devices for determination of linear dimension changes .3
6.2.1 Scoring device .3
6.2.2 Rigid steel plate .3
6.2.3 Block and dial gauge apparatus (for tiles and planks) .3
7 Test specimens . 7
7.1 Specimen preparation from sheet or roll material .7
7.2 Specimen preparation from tiles and planks .9
8 Conditioning . 9
9 Test procedure .10
9.1 Initial measurement .10
9.1.1 Curling (vertical deformation) .10
9.1.2 Linear dimensions . . .11
9.2 Heat exposure.11
9.3 Reconditioning. 12
9.4 Final measurement . 12
9.4.1 Curling (vertical deformation) . 12
9.4.2 Linear dimensions . . . 12
10 Calculation and expression of results .12
10.1 Curling (vertical deformation) . 12
10.2 Dimensional change . 13
11 Test report .13
Annex A (informative) Measurement of dimensional change due to heat . 14
Annex B (informative) Calculation and expression of results .15
Bibliography .18

iii
ISO/DIS 23999:2024(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
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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
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This document was prepared by Technical Committee ISO/TC 219, Floor coverings.
This fourth edition cancels and replaces the third edition (ISO 23999:2021), which has been technically
revised.
The main changes are as follows:
— Scope: Minor changes to the wording (for example “determining dimensional stability and curling”
replaced by “dimensional stability and curling (vertical deformation)”)
— Terms and definitions: Adaption/changes to the wording of some definitions and adding missing (e.g.
“machine direction” and “across machine direction”)
— Apparatus: Clearer, more unambiguous deviation between devices used for sheet and/or roll materials
and rectangular shaped elements (squared tiles or long panels), explanation of the use of the so called
“block and dial gauge apparatus” and minor changes/adaptions and correction to the figures (Note: No
device and no figure is completely deleted.)
— Test specimen: Description of the preparation distinguishing sheet and/or roll materials and rectangular
shaped elements (squared tiles or lon
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