EN ISO 20326:2018

SLOVENSKI STANDARD
01-december-2018
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SIST EN 14085:2011
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Resilient floor coverings - Specification for floor panels/assembly for loose laying (ISO
20326:2016)
Elastische Bodenbeläge - Spezifikation für Fußbodenpaneele für lose Verlegung (ISO
20326:2016)
Revêtements de sol résilients - Spécifications des panneaux de plancher/assemblages
pour pose flottante (ISO 20326:2016)
Ta slovenski standard je istoveten z: EN ISO 20326:2018
ICS:
97.150 Talne obloge Floor coverings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 20326
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2018
EUROPÄISCHE NORM
ICS 97.150 Supersedes EN 14085:2010
English Version
Resilient floor coverings - Specification for floor
panels/assembly for loose laying (ISO 20326:2016)
Revêtements de sol résilients - Spécifications des Elastische Bodenbeläge - Spezifikation für
panneaux de plancher/assemblages pour pose Fußbodenpaneele für lose Verlegung (ISO
flottante (ISO 20326:2016) 20326:2016)
This European Standard was approved by CEN on 20 August 2018.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20326:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 20326:2016 has been prepared by Technical Committee ISO/TC 219 "Floor coverings” of
the International Organization for Standardization (ISO) and has been taken over as EN ISO 20326:2018
by Technical Committee CEN/TC 134 “Resilient, textile and laminate floor coverings” the secretariat of
which is held by NBN.
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 April 2019, and conflicting national standards shall be
withdrawn at the latest by April 2019.
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.
This document supersedes EN 14085:2010.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 20326:2016 has been approved by CEN as EN ISO 20326:2018 without any modification.
INTERNATIONAL ISO
STANDARD 20326
First edition
2016-12-15
Resilient floor coverings —
Specification for floor panels/
assembly for loose laying
Revêtements de sol résilients — Spécifications des panneaux de
plancher/assemblages pour pose flottante
Reference number
ISO 20326:2016(E)
©
ISO 2016
ISO 20326:2016(E)
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
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Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved

ISO 20326:2016(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Requirements . 3
4.1 Requirements for the floor panels . 3
4.2 General requirements for the surface layer . 3
4.2.1 Residual indentation . 3
4.2.2 Colour fastness to artificial light . 4
4.2.3 Hardness of a rubber surface layer . 4
5 Classification . 4
5.1 General classification requirements . 4
5.2 Classification requirements for the surface layer . 5
5.2.1 General. 5
5.2.2 Linoleum surface layer . 5
5.2.3 Rubber surface layer . . 5
5.2.4 Polyvinyl chloride surface layer . 5
5.2.5 Polyvinyl chloride with enhanced slip properties surface layer . 5
5.2.6 Synthetic thermoplastic polymer surface layer . 5
5.2.7 Cork surface layer . 6
5.2.8 Heterogeneous polyurethane surface layer . 6
6 Marking, labelling and packaging . 6
6.1 Marking and labelling . 6
6.2 Packaging . 6
Annex A (normative) Determination of flatness . 7
Annex B (normative) Determination of openings and height differences between floor panels .10
Annex C (normative) Determination of dimensional variations caused by changes in humidity .12
Annex D (normative) Determination of locking strength with a tensile testing machine .14
Annex E (normative) Test report .16
Annex F (informative) Optional properties .17
Bibliography .18
ISO 20326:2016(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 on 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 the following URL: www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/TC 219, Floor coverings.
iv © ISO 2016 – All rights reserved

INTERNATIONAL STANDARD ISO 20326:2016(E)
Resilient floor coverings — Specification for floor panels/
assembly for loose laying
1 Scope
This document specifies requirements and test methods for floor panels/assembly for domestic and
commercial levels of use, which have surface layers consisting of resilient floor covering.
This document is not applicable to heterogeneous polyvinyl chloride floor panels/assembly for floating
installation covered by ISO 10582 or to floor panels/assembly that are subject to frequent wetting, such
as bathrooms, laundry rooms and saunas.
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.
ISO 4918, Resilient, textile and laminate floor coverings — Castor chair test
ISO 10581, Resilient floor coverings — Homogeneous poly(vinyl chloride) floor covering — Specifications
ISO 10582, Resilient floor coverings — Heterogeneous polyvinyl chloride floor coverings — Specification
ISO 10874, Resilient, textile and laminate floor coverings — Classification
ISO 10577, Resilient floor coverings — Specification for rubber sheet floor coverings without backing.
ISO 16581, Resilient and laminate floor coverings — Determination of the effect of simulated movement of
a furniture leg
ISO 16905, Resilient floor coverings — Specification for rubber floor covering — Tile/Plank
ISO 19322, Resilient floor coverings — Specification for floor coverings based on thermoplastic polymers
ISO 24011, Resilient floor coverings — Specification for plain and decorative linoleum
ISO 24334, Laminate floor coverings — Determination of locking strength for mechanically assembled panels
ISO 24336, Laminate floor coverings — Determination of thickness swelling after partial immersion in water
ISO 24342, Resilient and textile floor-coverings — Determination of side length, edge straightness and
squareness of tiles
ISO 24346, Resilient floor coverings — Determination of overall thickness
ISO 26986, Resilient floor coverings — Expanded (cushioned) poly(vinyl chloride) floor covering —
Specification
EN 651, Resilient floor coverings — Polyvinyl chloride floor coverings with foam layer — Specification
EN 652, Resilient floor coverings — Polyvinyl chloride floor coverings with cork-based backing —
Specification
EN 655, Resilient floor coverings — Tiles of agglomerated composition cork with polyvinyl chloride wear
layer — Specification
ISO 20326:2016(E)
EN 12104, Resilient floor coverings — Cork floor tiles — Specification
EN 13845, Resilient floor coverings — Polyvinyl chloride floor coverings with particle based enhanced slip
resistance — Specification
EN 14565, Resilient floor coverings — Floor coverings based upon synthetic thermoplastic polymers —
Specification
EN 16776, Resilient floor coverings — Heterogeneous polyurethane floor coverings — Specification
CEN/TS 16354, Laminate floor coverings — Underlays — Specification, requirements and test methods
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 panel
product generally of rectangular form consisting of a compact layer of a substrate and a surface layer of
a resilient floor covering
Note 1 to entry: A backing might be included.
3.2
substrate
core material of the floor panel with profiled edges to facilitate assembly at installation
Note 1 to entry: Examples are Medium Density Fibreboard (MDF), High Density Fibreboard (HDF) and Wood
Plastic Composite (WPC) either with or without wood fiber.
3.3
surface layer
upper decorative layer(s) of one of the following resilient floor coverings, bonded to the substrate
directly or as total product and intended to be on the visible side when the floor is installed:
— linoleum floor covering (ISO 24011);
— rubber floor covering (ISO 10577 and ISO 16905);
— polyvinyl chloride floor covering (ISO 10581, ISO 10582, EN 651, EN 652 and ISO 26986);
— cork floor covering (EN 12104 and EN 655);
— synthetic thermoplastic polymer floor covering (EN 14565 and ISO 19322);
— polyvinyl chloride floor coverings with particle based enhanced slip resistance (EN 13845);
— heterogeneous polyurethane floor covering (EN 16776)
3.4
backing
layer beneath the surface layer on the back of the substrate, e.g. cork, impregnated paper, foam
2 © ISO 2016 – All rights reserved

ISO 20326:2016(E)
4 Requirements
4.1 Requirements for the floor panels
All classes of floor panels including the surface layer shall conform to the requirements specified in
Table 1 when tested in accordance with the specified test methods.
Table 1 — General requirements for the floor panels
Property Requirement Test method
Dimensions measured at the surface layer Maximum deviation from the
nominal
Square panels
Side length                          % ±0,10
ISO 24342
Rectangular panels
Width                               % ±0,10
Length mm ≤0,5
Overall thickness
Average mm Nominal ±0,25
ISO 24346
Individual values mm Maximum deviation from the
average ±0,30
Squareness mm ≤0,20 ISO 24342
Straightness measured at the mm ≤0,30
a
ISO 24342
surface layer
Flatness of the panel
Length
Concave/convex % of the length ≤0,50/≤1,0 Annex A
Width
Concave/convex % of the width ≤0,10/≤0,15
Openings between panels
Average mm ≤0,15 Annex B
Individual values mm ≤0,20
Height difference between panels
Average mm ≤0,10 Annex B
Individual values mm ≤0,15
Dimensional variation caused by
≤0,25 Annex C
changes in atmospheric humidity %
a
For length >0,5 m, a metal ruler may be used.
4.2 General requirements for the surface layer
All classes of floor panels shall conform to the appropriate requirements as specified below.
4.2.1 Residual indentation
Surface layers in accordance with ISO 24011, ISO 10581, ISO 10582, EN 13845, EN 14565 and EN 16776
shall conform to the respectively residual indentation requirements in these particular standards.
NOTE The residual indentation requirements for EN 651, EN 652, EN 655, EN 12104, ISO 19322 and ISO 26986
are related to the surface or wear layer thickness classes in that same standard, and are specified in 5.2.
ISO 20326:2016(E)
4.2.2 Colour fastn
...