CEN/TS 15186:2005

Furniture - Assessment of the surface resistance to scratching

This Technical Specification specifies a method for the assessment of the surface resistance to penetrating and distinctive scratch marks and relates to rigid surfaces of all finished products regardless of materials.
It does not apply to finishes on leather and fabrics.
The test is intended to be carried out on finished furniture, but can be carried out on test panels of the same material, finished in an identical manner to the finished product, and of a size sufficient to meet the requirements of the test.
It is essential that the test be carried out on unused surfaces.
It is not applicable for the determination of the surface resistance to insubstantial/light scratch.
NOTE   The surface resistance to insubstantial/light scratch damage can be determined using the method in EN 438-2.

Möbel - Bewertung der Kratzfestigkeit von Oberflächen

Diese Technische Spezifikation legt ein Verfahren für die Bewertung der Oberflächenbeständigkeit gegen tiefe
und deutliche Kratzmarkierungen fest und gilt für die ebenen Oberflächen aller Erzeugnisse mit
Oberflächenbehandlung unabhängig vom Werkstoff.
Sie gilt nicht für behandelte Oberflächen aus Leder und Textilien.
Die Prüfung ist im Allgemeinen am gebrauchsfertigen Möbel durchzuführen, kann aber auch an Prüfkörpern
durchgeführt werden, die aus dem gleichen Werkstoff mit identischer Oberflächenbehandlung wie das fertige
Erzeugnis gefertigt wurden und groß genug sind, um den Anforderungen der Prüfung zu entsprechen.
Die Prüfung ist in jedem Fall an unbenutzten Oberflächen durchzuführen.
Diese Spezifikation gilt nicht für die Bestimmung der Beständigkeit der Oberflächen gegen feine, oberfläch-liche
Kratzer.
ANMERKUNG Die Oberflächenbeständigkeit gegen feine, oberflächliche Kratzer kann unter Verwendung des
Verfahrens nach EN 438-2 ermittelt werden.

Ameublement - Evaluation de la résistance de la surface à la rayure

La présente Spécification Technique spécifie une méthode d’évaluation de la résistance de la surface aux
rayures par pénétration nettement marquées et s’applique aux surfaces rigides de tous les produits finis, sans
distinction de matériau.
Elle ne s’applique pas aux finitions appliquées sur le cuir et les textiles.
L’essai est destiné à être réalisé sur des meubles finis mais il peut être effectué sur des panneaux d’essai de
dimensions suffisantes pour satisfaire aux spécifications de l'essai et du même matériau et de finition
identique au meuble fini.
Il est essentiel que l’essai soit réalisé sur des surfaces neuves.
La présente Spécification Technique ne s’applique pas à la détermination de la résistance des surfaces aux
rayures légères/négligeables.
NOTE La résistance de la surface aux dommages dus à des rayures légères/négligeables peut être déterminée en
utilisant la méthode de l’EN 438-2.

Pohištvo – Ugotavljanje odpornosti površine proti razenju

General Information

• Status: Withdrawn
• Publication Date: 15-Nov-2005
• Withdrawal Date: 17-Apr-2012
• ICS: 97.140 - Furniture
• Technical Committee: CEN/TC 207 - Furniture
• Drafting Committee: CEN/TC 207/WG 7 - Surfaces and surface finishes of furniture
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 18-Apr-2012
• Completion Date: 18-Apr-2012
• Ref Project: SIST-TS CEN/TS 15186:2006 - Furniture - Assessment of the surface resistance to scratching

Relations

• Replaced By: EN 15186:2012 - Furniture - Assessment of the surface resistance to scratching
• Effective Date: 25-Apr-2012

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2006
Pohištvo – Ugotavljanje odpornosti površine proti razenju
Furniture - Assessment of the surface resistance to scratching
Möbel - Bewertung der Kratzfestigkeit von Oberflächen
Ameublement - Evaluation de la résistance de la surface a la rayure
Ta slovenski standard je istoveten z: CEN/TS 15186:2005
ICS:
97.140 Pohištvo Furniture
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CEN/TS 15186
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
November 2005
ICS 97.140
English Version
Furniture - Assessment of the surface resistance to scratching
Ameublement - Evaluation de la résistance de la surface à Möbel - Bewertung der Kratzfestigkeit von Oberflächen
la rayure
This Technical Specification (CEN/TS) was approved by CEN on 1 October 2005 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 15186:2005: E
worldwide for CEN national Members.

Contents page
Foreword .3
1 Scope .4
2 Normative references .4
3 Terms and definitions.4
4 Principle.5
5 Apparatus and materials .5
6 Preparation and conditioning .7
7 Procedure .8
8 Assessment of results.10
9 Test report .11
Annex A (informative).12
Bibliography.15

Foreword
This Technical Specification (CEN/TS 15186:2005) has been prepared by Technical Committee CEN/TC 207
“Furniture”, the secretariat of which is held by UNI.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this CEN Technical Specification: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
1 Scope
This Technical Specification specifies a method for the assessment of the surface resistance to penetrating
and distinctive scratch marks and relates to rigid surfaces of all finished products regardless of materials.
It does not apply to finishes on leather and fabrics.
The test is intended to be carried out on finished furniture, but can be carried out on test panels of the same
material, finished in an identical manner to the finished product, and of a size sufficient to meet the
requirements of the test.
It is essential that the test be carried out on unused surfaces.
It is not applicable for the determination of the surface resistance to insubstantial/light scratch.
NOTE The surface resistance to insubstantial/light scratch damage can be determined using the method in EN 438-2.
2 Normative references
The following referenced documents are indispensable for the application 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 1518, Paints and varnishes - Scratch test (ISO 1518:1992)
3 Terms and definitions
For the purposes of this Technical Specification, the following terms and definitions apply.
3.1
test unit
finished item of furniture
3.2
test surface
part of the test unit, where the test area is included
3.3
test panel
panel produced in the same way as the test surface; it should be used when it is not possible to carry out the
test directly on the test surface
3.4
test area
area under the equipment, where the measurement is carried out
3.5
test atmosphere
atmosphere where the test is carried out
3.6
scratching tip
needle with a point of defined geometry, see 5.3
3.7
scratching trace
visible and measurable mark on the tested surface which is produced under the specified load of the
scratching tip; the shapes of the traces can be different depending on the substrate and coating type as
shown in Figures 3, 4, 5 and 6
3.8
scratching resistance
minimum load, in N, applied to the scratching tip, which produces a measurable width trace (W) of ≥ 0,30 mm
(Method A) or ≥ 0,50 mm (Method B)
3.9
preliminary assessments of the scratching resistance
minimal load causing the specified trace on one test surface
3.10
intermediate assessment of scratching resistance
mean value of preliminary assessments of the scratching resistance
3.11
final value of scratching resistance
mean value of intermediate assessments of three test surfaces (see Figure A.2)
4 Principle
Surface scratching resistance is defined as the minimum load, in N (Newtons), applied to the tip with specified
geometry, which produces a specified scratch width.
The width of the scratching trace is the result of the assessment of the series of scratches produced by the tip.
5 Apparatus and materials
5.1 Test apparatus
Equipment for linear, without hand movement of the scratching tip or the test surface, according to the
principle of EN ISO 1518.
5.2 Equipment parameters
The technical parameters of the apparatus shall be as specified in Table 1.
Table 1 — Technical parameters
Parameter Description
Movement Linear, without hand movement
Load range (N) 1-20
Increment of load (N) 1,0 ± 0,1
Speed of the movement (mm/s) 20 ± 10
Scratching trace length (mm) Minimum 22
5.3 Scratching tip
5.3.1 Method A
Scratching tip made of carbon carbide, with radius (R) of (0,30 ± 0,01) mm.
The coupling between the spherical part of the tool and the truncated cone section, shall allow that the width
of the trace produced by the tool on the test area will be higher than 0,30 mm without the disturbing of this
truncated cone section.
An example of this tool is shown in Figure 1.
The tip shall be mounted in the holder with the flat part on the leading side of the shank facing the working
direction.
The tip shall be checked before using (see 6.3).

Key
α  tip's angle α =60,0° ± 1,0º
R  radius of tip's rounded part R = 0,30 mm ± 0,01 mm
k k
Figure 1 — Scratching tip
5.3.2 Method B
Scratching tip made of carbon carbide, with radius (R) of (0,50 ± 0,01) mm.
The coupling between the spherical part of the tool and the truncated cone section, shall allow that the width
of the trace produced by the tool on the test area will be higher than 0,50 mm without the disturbing of this
truncated cone section.
The tip shall be
...