Thermoplastics rigid protective wallcovering panels for internal use in buildings - Performance characteristics

This draft European Standard specifies product characteristics for thermoplastics rigid protective wallcovering panels whose purposes are decorative and protective, but non-structural.
The products covered by this draft European Standard are intended to be used as finishes for hanging onto internal walls and wall partitions by means of adhesive.
For the specified characteristics of these products, this draft European Standard provides for each of it corresponding: requirement(s), assessment method(s) (i.e. test, calculation or description), and way(s) of declaring its performance.
It also specifies the methods for the assessment and verification of constancy of performance of the products. In addition, for the concerned products, it specifies also marking.

Kunststoff-Wandschutzplatten für die Anwendung in Gebäuden - Leistungskenngrößen

Dieser Europäische Norm-Entwurf legt Produkteigenschaften für Kunststoff-Wandschutzplatten fest, die dekorativ und schützend, aber nicht strukturell sind.
Die unter diesem Europäischen Norm-Entwurf fallenden Erzeugnisse sollen als Verkleidungen zum Anbringen mittels Klebstoff an Innenwänden und Wandabtrennungen verwendet werden.
Dieser Europäische Norm-Entwurf enthält für die angegebene Charakteristik dieser Produkte jeweils Anforderungen, Bewertungsmethoden (z. B. Test, Berechnung oder Beschreibung) und Arten der Leistungserklärung.
Ferner legt sie Methoden für die Bewertung und Überprüfung der Leistungsfähigkeit der Produkte fest. Darüber hinaus bestimmt sie die Kennzeichnung für die betreffenden Erzeugnisse.

Panneaux de protection murale rigides en thermoplastiques pour usage intérieur dans le bâtiment - Caractéristiques de performance

Le présent projet de Norme européenne spécifie les caractéristiques de produit des panneaux de protection murale rigides en thermoplastiques utilisés pour la décoration et pour la protection, sans rôle structurel.
Les produits couverts par le présent projet de Norme européenne sont destinés à être utilisés comme finitions accrochées sur les murs intérieurs et les cloisons au moyen d’une colle.
Pour les caractéristiques spécifiées de ces produits, le présent projet de Norme européenne fournit pour chaque produit les exigences, la (les) méthode(s) d’évaluation (à savoir essai, calcul ou description) et la (les) méthode(s) de déclaration des performances.
Elle spécifie également les méthodes d’évaluation et de vérification de la constance des performances des produits. En outre, pour les produits concernés, elle spécifie également le marquage.

Plastomerne toge zaščitne stenske obloge za notranjo uporabo v stavbah - Tehnične lastnosti

General Information

Status
Published
Public Enquiry End Date
31-May-2017
Publication Date
04-Feb-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
04-Feb-2021
Due Date
11-Apr-2021
Completion Date
05-Feb-2021

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SLOVENSKI STANDARD
SIST EN 17104:2021
01-marec-2021
Plastomerne toge zaščitne stenske obloge za notranjo uporabo v stavbah -
Tehnične lastnosti

Thermoplastics rigid protective wallcovering panels for internal use in buildings -

Performance characteristics
Kunststoff-Wandschutzplatten für die Anwendung in Gebäuden - Leistungskenngrößen

Panneaux de protection murale rigides en thermoplastiques pour usage intérieur dans le

bâtiment - Caractéristiques de performance
Ta slovenski standard je istoveten z: EN 17104:2021
ICS:
83.140.10 Filmi in folije Films and sheets
91.180 Notranja zaključna dela Interior finishing
SIST EN 17104:2021 en,fr,de

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

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SIST EN 17104:2021
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SIST EN 17104:2021
EN 17104
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2021
EUROPÄISCHE NORM
ICS 83.140.10
English Version
Thermoplastics rigid protective wallcovering panels for
internal use in buildings - Performance characteristics

Panneaux de protection murale rigides en Kunststoff-Wandschutzplatten für die Anwendung in

thermoplastiques pour usage intérieur dans le Gebäuden - Leistungsmerkmale
bâtiment - Caractéristiques de performance
This European Standard was approved by CEN on 27 December 2020.

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, 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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17104:2021 E

worldwide for CEN national Members.
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SIST EN 17104:2021
EN 17104:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 7

4 Characteristics ................................................................................................................................................. 7

4.1 Reaction to fire ................................................................................................................................................. 7

4.2 Emission of dangerous substances into indoor air ............................................................................. 8

4.2.1 General ................................................................................................................................................................ 8

4.2.2 Emissions of volatile organic compounds (VOC) with exception of formaldehyde ................ 8

4.2.3 Emission of formaldehyde ........................................................................................................................... 8

4.3 Migration of heavy metals ............................................................................................................................ 9

4.4 Impact resistance ............................................................................................................................................ 9

4.5 Sound absorption ............................................................................................................................................ 9

4.6 Thermal resistance ......................................................................................................................................... 9

5 Testing, assessment and sampling methods ...................................................................................... 10

5.1 Reaction to fire .............................................................................................................................................. 10

5.2 Emissions of volatile organic compounds (VOC) with exception of formaldehyde ............. 10

5.3 Emission of formaldehyde ........................................................................................................................ 10

5.4 Migration of heavy metals ......................................................................................................................... 10

5.5 Impact resistance ......................................................................................................................................... 11

5.6 Sound absorption ......................................................................................................................................... 11

5.7 Thermal resistance ...................................................................................................................................... 11

6 Assessment and verification of constancy of performance - AVCP ............................................ 12

6.1 General ............................................................................................................................................................. 12

6.2 Assessment of performance ..................................................................................................................... 12

6.2.1 General ............................................................................................................................................................. 12

6.2.2 Test samples, testing and assessment criteria .................................................................................. 13

6.3 Verification of constancy of performance ........................................................................................... 14

6.3.1 Factory production control (FPC) .......................................................................................................... 14

6.3.2 Initial inspection of factory and of FPC ................................................................................................ 15

6.3.3 Continuous surveillance of FPC ............................................................................................................... 15

Annex A (normative) Extended application rules within a group of product ....................................... 17

A.1 Tests for the reaction to fire performance .......................................................................................... 17

A.1.1 General ............................................................................................................................................................. 17

A.1.2 Sampling .......................................................................................................................................................... 17

A.1.3 Product parameter having an influence on the reaction to fire performance ....................... 17

A.1.4 End-use application parameters ............................................................................................................ 17

A.1.5 Tests conducted according to EN 13823:2020 intended for an extended application ....... 18

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EN 17104:2021 (E)
A.1.6 Tests conducted according to EN ISO 11925-2:2020 intended for an extended

application ...................................................................................................................................................... 19

A.2 Test for emission of dangerous substances into indoor air (VOC and formaldehyde) ....... 19

A.2.1 General ............................................................................................................................................................. 19

A.2.2 Product parameters which influence indoor air emissions .......................................................... 19

Annex ZA (informative) Relationship of this European Standard with Regulation (EU) No

305/2011 ......................................................................................................................................................... 20

ZA.1 Scope and relevant characteristics ........................................................................................................ 20

ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) ...................... 21

ZA.3 Assignment of AVCP tasks ......................................................................................................................... 21

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SIST EN 17104:2021
EN 17104:2021 (E)
European foreword

This document (EN 17104:2021) has been prepared by Technical Committee CEN/TC 249 “Plastics”,

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 July 2021, and conflicting national standards shall be

withdrawn at the latest by October 2022.

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 has been prepared under a Standardization request (i.e. M/121) given to CEN by the

European Commission and the European Free Trade Association, and supports essential requirements

of Regulation (EU) No 305/2011.

For relationship with Regulation (EU) No 305/2011 on construction products (CPR), see informative

Annex ZA, which is an integral part of this document.

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, Turkey and the

United Kingdom.
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SIST EN 17104:2021
EN 17104:2021 (E)
Introduction

An overview of European standards for products used as wall finishes is given in Figure 1.

Figure 1 — European standards for products used as wall finishes
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SIST EN 17104:2021
EN 17104:2021 (E)
1 Scope

This document specifies characteristics for thermoplastics rigid protective wallcovering panels whose

purposes are decorative and protective, but non-structural.

The thermoplastics rigid protective wallcovering panels are intended to be used as finishes for hanging

onto internal walls and wall partitions by means of adhesive. Their surface may be with or without

embossing.

It also specifies the procedures for the assessment and verification of constancy of performance (AVCP)

of the thermoplastics rigid protective wallcovering panels.

This document does not cover thermoplastics rigid protective wallcovering panels:

— fixed onto internal walls and wall partitions by other means than by adhesives, as well as the

adhesives and ancillary products themselves,
— intended to be used on ceilings.
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 717-1:2004, Wood-based panels - Determination of formaldehyde release - Part 1: Formaldehyde

emission by the chamber method

EN 12149:1997, Wallcoverings in roll form - Determination of migration of heavy metals and certain

other elements, of vinyl chloride monomer and of formaldehyde release

EN 12667:2001, Thermal performance of building materials and products - Determination of thermal

resistance by means of guarded hot plate and heat flow meter methods - Products of high and medium

thermal resistance

EN 13238:2010, Reaction to fire tests for building products - Conditioning procedures and general rules

for selection of substrates

EN 13501-1:2018, Fire classification of construction products and building elements - Part 1:

Classification using data from reaction to fire tests

EN 13823:2020, Reaction to fire tests for building products - Building products excluding floorings

exposed to the thermal attack by a single burning item
CEN/TS 15117:2005, Guidance on direct and extended application

EN 16516:2017+A1:2020, Construction products - Assessment of release of dangerous substances -

Determination of emissions into indoor air

EN ISO 354:2003, Acoustics - Measurement of sound absorption in a reverberation room (ISO 354:2003)

EN ISO 6603-1:2000, Plastics - Determination of puncture impact behaviour of rigid plastics - Part 1: Non-

instrumented impact testing (ISO 6603-1:2000)
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SIST EN 17104:2021
EN 17104:2021 (E)

EN ISO 10456:2007/AC:2009, Building materials and products - Hygrothermal properties - Tabulated

design values and procedures for determining declared and design thermal values - Technical

Corrigendum 1 (ISO 10456:2007/Cor 1:2009)

EN ISO 11654:1997, Acoustics - Sound absorbers for use in buildings - Rating of sound absorption

(ISO 11654:1997)

EN ISO 11925-2:2020, Reaction to fire tests - Ignitability of products subjected to direct impingement of

flame - Part 2: Single-flame source test (ISO 11925-2:2020)
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
NOTE See Regulation (EU) No 305/2011 for additional definitions.
3.1
thermoplastics rigid protective wallcovering panel

homogeneous or heterogeneous panel/sheet made from plastic material(s), covered or not with a

decorative film, intended to wall protection without structural function

Note 1 to entry: On the market, the wording “thermoplastics rigid protective wallcovering sheet” is also used.

Note 2 to entry: Panels/sheets can have different shapes, dimensions, thicknesses, colours, designs or densities,

and the protective face of panels may be with or without embossing.
3.2
product family

group of products produced by one manufacturer for which the assessment results for one or more

characteristics from any one product within the range are valid for all other products within this range

4 Characteristics
4.1 Reaction to fire

NOTE The reaction to fire indicates the degree of contribution of the material of these panels to the

behaviour of the construction product in the event of fire.

The reaction to fire performance of a thermoplastics rigid protective wallcovering panel shall be

determined according to 5.1 for the claimed reaction to fire class, as specified in EN 13501-1:2018.

If so, the claimed class of the reaction to fire performance of a thermoplastics rigid protective

wallcovering panel shall be expressed together with the type of the applied substrate, as defined in

EN 13238:2010, Table 1, the 1 column (Nature).
EXAMPLE D-s1,d0 / Fibre cement board

When defining a product family of a particular type of the thermoplastics rigid protective wallcovering

panel with regard to its reaction to fire performance, the panel’s parameters, influencing such

performance, as given in A.1, shall be taken into account.
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EN 17104:2021 (E)
4.2 Emission of dangerous substances into indoor air
4.2.1 General

Thermoplastics rigid protective wallcovering panels shall be assessed concerning emission from them

of the following dangerous substances:

— volatile organic compounds (VOC), with exception of formaldehyde, as specified in 4.2.2, and

— formaldehyde, as specified in 4.2.3.

When assessing the emission of these dangerous substances from thermoplastics rigid protective

wallcovering panel, the parameters influencing such performance, as given in A.2, shall be taken into

account.

4.2.2 Emissions of volatile organic compounds (VOC) with exception of formaldehyde

Emission of volatile organic compounds (VOC) from thermoplastics rigid protective wallcovering panel

shall be determined in accordance with 5.2.

The performance shall be expressed as an indication of the value (in mg/m ) rounded to the nearest

upper 10 mg/m .
3 3
EXAMPLE Value 225 mg/m expressed as 230 mg/m .
4.2.3 Emission of formaldehyde

The emission of formaldehyde from the thermoplastics rigid protective wallcovering panel shall be

determined in accordance with 5.3.

Depending on the result obtained, the performance of this characteristic shall be expressed as

formaldehyde emissions Classes E1 or E2, considering the respective criterion specified in Table 1.

Table 1 — Classification for emissions of formaldehyde
Class Test methods and criteria
EN 717–1:2004
EN 16516:2017+A1:2020
E1 Equilibrium concentration in the air of the test
≤ 0,12 mg/m
chamber ≤ 0,12 mg/m
E2 Equilibrium concentration in the air of the test
> 0,12 mg/m
chamber > 0,12 mg/m
Considered as the referenced method.
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SIST EN 17104:2021
EN 17104:2021 (E)
4.3 Migration of heavy metals

4.3.1 The migration of heavy metals from the thermoplastics rigid protective wallcovering panel, as

listed in Table 2, shall be determined in accordance with 5.4.
Table 2 — Criteria for migration of heavy metals
Heavy metal Symbol Maximum migration value
mg/kg
Antimony Sb –
Barium Ba 500
Selenium Se 165

The obtained corrected analytical value of migration, C, of any of the heavy metals from thermoplastics

rigid protective wallcovering panel, as listed in Table 2, except of antimony (Sb), shall not exceed the

related maximum migration value, specified also therein.

4.3.2 If so, the migration of heavy metals from the thermoplastics rigid protective wallcovering panel,

as listed in Table 2, shall be expressed, as:

a) for antimony (Sb), as indication of the achieved corrected analytical value, C, in mg/kg

EXAMPLES
200 mg/kg
0 mg/kg
b) for barium (Ba) or selenium (Se), as indication “Compliant”.
4.4 Impact resistance

The impact resistance performance of thermoplastics rigid protective wallcovering panels shall be

determined according to 5.5 and the value of the 50 % impact-failure energy (E ) reported.

The impact resistance performance of thermoplastics rigid protective wallcovering panel shall have the

50 % impact-failure energy (E ) higher than 15 J and, if so, the performance of this characteristic shall

be expressed as indication “> 15 J”.

NOTE The threshold limit of 15 J is considered as protection from the risk of break of the thermoplastics rigid

protective wallcovering panel and of the wall itself, on which surface such panels are mounted.

4.5 Sound absorption

The sound absorption performance of a thermoplastics rigid protective wallcovering panel shall be

measured according to 5.6 and expressed as an indication of a value of the sound absorption coefficient,

α .
4.6 Thermal resistance

The performance of thermal resistance, R, of the thermoplastics rigid protective wallcovering panel

shall be determined either by calculation, in accordance with to 5.7 a), or by testing, with 5.7 b).

NOTE The calculation method is considered as the reference method.
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SIST EN 17104:2021
EN 17104:2021 (E)

The performance of this characteristic of the thermoplastics rigid protective wallcovering panel shall be

expressed as an indication of the 23 °C value of thermal resistance R, in m ·K/W.

The performance shall be expressed as an indication of the value (in m ·K/W) rounded to the nearest

upper 0,01 m ·K/W.
2 2
EXAMPLE Value 0,025 m ·K/W expressed as 0,03 m ·K/W.
5 Testing, assessment and sampling methods
5.1 Reaction to fire

The reaction to fire performance of the thermoplastics rigid protective wallcovering panel shall be

determined in accordance with the test method(s), given in the standard(s), referred in

EN 13501-1:2018, for the claimed class of the reaction to fire performance.

The test specimens of the thermoplastics rigid protective wallcovering panel shall be tested, where

relevant, considering the substrate according to EN 13238:2010, Table 1.
5.2 Emissions of volatile organic compounds (VOC) with exception of formaldehyde

The emission of volatile organic compounds (VOC) from thermoplastics rigid protective wallcovering

panel shall be determined according to EN 16516:2017+A1:2020, GC-MS method.
5.3 Emission of formaldehyde

The emission of formaldehyde from thermoplastics rigid protective wallcovering panel shall be

determined according to either EN 16516:2017+A1:2020, HPLC method, or EN 717-1:2004.

NOTE Method according to EN 16516:2017+A1:2020 is considered as the referenced method.

5.4 Migration of heavy metals

For performance of migration of any of the heavy metals from thermoplastic rigid protective

wallcovering panel, as listed in Table 2, the following values (both in mg/kg), shall be determined:

a) an analytical value, A, obtained in the test performed in accordance with EN 12149:1997, Clause 4

(Test A), and

NOTE For the antimony, if the level cannot be determined because of the low detection capacity, the

analytical value, A, may be taken as zero.

b) a corrected value, C, calculated according the following equation, where B is analytical correction

factor from Table 3 for the corresponding heavy metal:
C = A – (A × B)/100

EXAMPLE Analytical result for barium (A) is 600 and corresponding analytical correction factor in Table 3

(B) is 30 %.

Corrected analytical value, C = 600 – (600 × 30)/100 = 600 – 180 = 420 mg/kg ≤ 500 mg/kg.

This is regarded as satisfying the respective maximum migration criterion, specified in

Table 2.
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EN 17104:2021 (E)
Table 3 — Analytical correction factor
Heavy metal Sb Ba Se
Analytical correction factor, B, in % 60 30 60
5.5 Impact resistance

The impact resistance performance of thermoplastics rigid protective wallcovering panel shall be

determined according to EN ISO 6603-1:2000, Method A, with the test conditions shall be as follow:

— striker diameter: (20 ± 0,2) mm;
— surface area of test specimens: (60 ± 2) mm ;

— number of specimens: at least 30 test specimens shall be used (10 test specimens for pretesting to

determine the starting energy);

— conditions for conditioning of test specimens and testing: (23 ± 2) °C and (50 ± 5) % RH.

The impact resistance performance shall be dealt with by the 50 % impact-failure energy (E ), the

energy that causes no more than half of the test specimens to fail, as defined hereafter.

Failure occurs, when a crack or a break appears on the test specimen (see examples given in Figure 2).

White discolorations are not considered as cracks.
Key
1 test specimen
2 crack/break
Figure 2 — Examples of specimen surfaces damaged by a “crack”
5.6 Sound absorption

Performance of the sound absorption of thermoplastics rigid protective wallcovering panel shall be

measured in accordance with EN ISO 354:2003 and reported as the single value of the sound absorption

coefficient, α , according to EN ISO 11654:1997.
5.7 Thermal resistance

The performance of thermal resistance, R, of the thermoplastics rigid protective wallcovering panel

shall be determined on one of the following ways:
a) by calculation, based by the following equation:
R = Σ t /λ , for i = 1 to n,
i i
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SIST EN 17104:2021
EN 17104:2021 (E)

where n, is the total number of layers of the panel, each layer characterised by its:

i) thickness t (m), and
ii) thermal conductivity value, λ (in W/(m.K)), as tabulated values, taken from
EN ISO 10456:2007/AC:2009.

NOTE 1 The conversion quotations for the thermal values in EN ISO 10456:2007/AC:2009 may be used to

extrapolate the data to 23 °C.
b) by testing, in accordance with EN 12667:2001.
NOTE 2 The method according to 5.7 a) is considered as the reference method.

NOTE 3 A correlation with the results of the referenced method should be established.

6 Assessment and verification of constancy of performance - AVCP
6.1 General

The technical details necessary for the implementation of the system of assessment and verification of

constancy of performance comprise provisions with regards to:

— the assessment of the performance of the construction product, which may be carried out on the

basis of testing (including sampling), calculation, tabulated values or descriptive documentation of

the product; and
— the applicable factory production control.
6.2 Assessment of performance
6.2.1 General

When the intention is to declare any performance related to characteristics included in Annex ZA, this

shall be carried out on the basis of testing (including sampling), calculation, tabulated values or

descriptive documentation of the product, in accordance with Clauses 4 and 5.

Assessment previously performed in accordance with the provisions of this document, may be

considered, provided that this assessment was performed to the same or a more rigorous assessment

method, under the same AVCP system on the same product or products of similar design, construction

and functionality, such that the results are applicable to the product in question.

For the purposes of assessment, the products may be grouped into families, where it is considered that

the results for one or more characteristics from any one product within the family are representative

for that same characteristic for all products within that same family.

NOTE Products may be grouped into different families for different characteristics.

In addition, the determination of the product performance shall be

— carried out for all characteristics included in the standard for which it is intended to declare the

performance:
— on first application of this document, or

— at the beginning of the production of a new or modified thermoplastics rigid protective

wallcovering panel, unless a member of the same product family; or
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EN 17104:2021 (E)

— at the beginning of a new or modified method of production, where the modification may affect

the stated properties;

— repeated for the characteristic(s) in question, whenever a change occurs in the thermoplastics rigid

protective wallcovering panel design, in the raw material(s) or in the supplier of the components,

and/or in the method of production (subject to the definition of a family), which may affect

significantly the performance in relation to one or more of the characteristics.

Where kit components are used whose performance in relation to their characteristics has already been

determined on the basis of assessment methods of other harmonised technical specifications and those

components bear CE marking in accordance with those harmonised technical specifications, these

performances do not need to be re-assessed, if the intended use and the assessment methods of this

document correspond to previously used. The specifications of these components shall be documented.

6.2.2 Test samples, testing and assessment criteria

The samples of thermoplastics rigid protective wallcovering panels to be tested/assessed shall be in

accordance with Table 4.
Table 4 — Number of samples to be tested and assessment criteria
Characteristic Clause Assessment Number of samples Assessment
method criteria
Reaction to fire 4.1 5.1 As given in the 4.1
appropriate test
standard
...

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