oSIST prEN 17539:2020

Modular mechanical locked floor coverings (MMF) - Determination of geometrical characteristics

This document describes test methods for determination of the geometrical characteristics of modular mechanical locked floor covering panels in respect to thickness, length, width, squareness, straightness, width flatness, length flatness, openings between assembled elements and height differences between assembled elements.
The geometrical characteristics of modular mechanical locked panels are important considerations because installed flooring will have an objectionable appearance if these performance criteria are not followed. This can cause the installed panels to line up unevenly, producing unsightly seams, uneven surfaces and corners that do not match.

Modulare mehrlagige, schwimmende Fußbodenplatten mit einem mechanischen Schließsystem - Bestimmung der geometrischen Merkmale

Dieses Dokument legt Prüfverfahren zur Bestimmung geometrischer Merkmale von modularen Fußbodenplatten mit einem mechanischen Schließsystem in Bezug auf die Dicke, Länge, Breite, Rechtwinkligkeit, Geradheit, Ebenheit in der Breite, Ebenheit in der Länge, Fugenöffnungen zwischen montierten Elementen und Höhenunterschiede zwischen montierten Elementen fest.
Die geometrischen Merkmale von modularen Fußbodenplatten mit einem mechanischen Schließsystem sind wichtige Faktoren, da verlegter Bodenbelag ein störendes Erscheinungsbild haben kann, wenn diese Leistungskriterien nicht erfüllt werden. Das kann dazu führen, dass die verlegten Fußbodenplatten nicht gleichmäßig ausgerichtet sind, was zu unansehnlichen Verbindungsnähten, unebenen Oberflächen und nicht aufeinander passenden Ecken führt.

Revêtements de sol modulaires à verrouillage mécanique (MMF) - Détermination des caractéristiques géométriques

Le présent document spécifie les méthodes d'essai pour déterminer les caractéristiques géométriques des panneaux de revêtements de sol modulaires à verrouillage mécanique par rapport à l'épaisseur, la longueur, la largeur, l'équerrage, la rectitude, la planéité en largeur, la planéité en longueur et les ouvertures ainsi que les différences de hauteur entre les éléments assemblés.
Les caractéristiques géométriques des panneaux modulaires à verrouillage mécanique sont des facteurs importants à prendre en compte car il en va de la bonne apparence du sol installé si ces critères de performance ne sont pas respectés. Les panneaux installés peuvent, le cas échéant, être alignés de façon désordonnée, ce qui entraîne des raccords disgracieux, des surfaces irrégulières et des angles non concordants.

Modularne mehansko spojene talne obloge (MMF) - Ugotavljanje geometrijskih značilnosti

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 17539:2020
01-julij-2020
Modularne mehansko spojene talne obloge (MMF) - Ugotavljanje geometrijskih
značilnosti
Modular mechanical locked floor coverings (MMF) - Determination of geometrical
characteristics
Modulare mehrlagige, schwimmende Fußbodenplatten mit einem mechanischen
Schließsystem - Bestimmung der geometrischen Merkmale
Ta slovenski standard je istoveten z: prEN 17539
ICS:
97.150 Talne obloge Floor coverings
oSIST prEN 17539:2020 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 17539:2020
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oSIST prEN 17539:2020
DRAFT
EUROPEAN STANDARD
prEN 17539
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2020
ICS 97.150
English Version
Modular mechanical locked floor coverings (MMF) -
Determination of geometrical characteristics
Modulare mehrlagige, schwimmende Fußbodenplatten
mit einem mechanischen Schließsystem - Bestimmung
der geometrischen Merkmale

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 134.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Turkey and

United Kingdom.

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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17539:2020 E

worldwide for CEN national Members.
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Contents Page

European foreword ............................................................................................................................................ 3

Introduction .......................................................................................................................................................... 4

1 Scope .......................................................................................................................................................... 5

2 Normative references .......................................................................................................................... 5

3 Terms and definitions ......................................................................................................................... 5

4 Principles ................................................................................................................................................. 5

5 Apparatus ................................................................................................................................................ 6

6 Sampling and selection of specimens ............................................................................................ 8

7 Atmosphere for conditioning and testing .................................................................................... 8

8 Procedure ................................................................................................................................................ 8

9 Calculation and expression of results ......................................................................................... 11

10 Precision statement ........................................................................................................................... 12

11 Test report ............................................................................................................................................. 12

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European foreword

This document (prEN 17539) has been prepared by Technical Committee CEN/TC 134 “Resilient, textile

and laminate floor coverings”, the secretariat of which is held by NBN.
This document is currently submitted to CEN Enquiry.
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Introduction

The technical committee CEN TC134 decided to develop a series of generic test methods able to

demonstrate the characteristics of modular mechanical locked floor covering panels. This series of test

methods will be used in the common part of individual product specification standards.

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1 Scope

This document describes test methods for determination of the geometrical characteristics of modular

mechanical locked floor covering panels in respect to thickness, length, width, squareness, straightness,

width flatness, length flatness, openings between assembled elements and height differences between

assembled elements.

The geometrical characteristics of modular mechanical locked panels are important considerations

because installed flooring will have an objectionable appearance if these performance criteria are not

followed. This can cause the installed panels to line up unevenly, producing unsightly seams, uneven

surfaces and corners that do not match.
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 23999, Resilient floor coverings — Determination of dimensional stability and curling after

exposure to heat (ISO 23999)
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 http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
floor covering panel with mechanical locking system

rigid or semi-rigid floor covering, typically in a plank or tile format, consisting of a compact layer of a

substrate and a decorative surface layer for floating installation
3.2
squareness
measurement of the amount each corner of the tile deviates from 90°
3.3
straightness
property of an edge to be straight, unbent
4 Principles
4.1 Thickness

The test piece is placed between two parallel plates, and the distance between them is measured, the

contact pressure being adapted to suit the structure of the test piece.
4.2 Length and width

The surface dimensions of a modular mechanical locked floor covering panel are measured by a contact

method at defined positions in each direction.
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4.3 Squareness

To assess the squareness, each corner of a right-angled panel is fitted into the dihedral angle of a precision

square and the maximum gap between the arm of the square and the ends of the panel is measured.

4.4 Straightness

To assess the straightness, the maximum opening between the panel and the straight edge is measured

using a suitable gauge.
4.5 Flatness

To assess width flatness the deviation in height is measured by direct contact with a dial gauge

maintained at constant height. To assess length flatness the maximum opening between the panel and a

straight edge is measured using a gauge.
4.6 Openings and height differences

A standard assembly is fixed together, openings of the assembled specimens are measured with thickness

gauges and height differences are measured with callipers or depth gauges at standard predefined points.

5 Apparatus
5.1 Apparatus for thickness measurement
5.1.1 Movable circular upper plate.

For various types of floor covering panel structures, the diameter of the upper plate, the applied mass,

the area and the pressure shall be in accordance with Table 1.

5.1.2 Fixed lower plate, at least equal to size of the upper plate and at least 15 cm .

5.1.3 Dial gauge, to measure the distance between the plates to an accuracy of 0,01 mm (0,1 mm over

a range of 25 mm for textiles).

5.1.4 Straight edge, for example a ruler, for brushing the surface of textile specimens.

5.2 Apparatus for length and width measurement

A dial gauge, a sliding calliper gauge or equivalent device with an accuracy of 0,05 mm for measurements

up to 610 mm and an accuracy of 0,1 mm for measurements over 610 mm.
5.3 Apparatus for squareness measurement

Flat bedplate apparatus, for measuring squareness of panels. This apparatus shall be an “L” shaped steel

device having an angle of 1,570 80 rad (90°) with a tolerance of ± 0,000 18 rad (0,01°).

5.4 Apparatus for straightness measurement

5.4.1 Calibrated straight edge (steel ruler), of length at least equal to the length of the specimens, and

having a maximum straightness deviation of 0,05 mm over 1,000 mm.
5.4.2 A set of thickness gauges.
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5.5 Apparatus for determination of flatness

5.5.1 Apparatus for measuring width flatness, consisting of a dial gauge accurate to ± 0,01 mm with a

rounded tip of radius 5,5 mm, installed centrally in relation to three rounded supports with radii 5 mm.

The supports shall be adjustable along a T-shaped assembly of bars to provide the required gauge length.

The measurement, d, shall not be less than the width, of the test specimen minus 10 mm. The t

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