Furniture - Assessment of the surface reflectance

This document specifies a method for the assessment of the surface reflectance of furniture surfaces and relates to rigid surfaces of all finished products regardless of materials, except for finishes on leather and fabrics, which are excluded from this document.
This document is applicable to the test, 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.
The test method is not applicable to some metallic paints and pearly coatings.

Möbel - Bewertung des Oberflächenreflexionsgrades

Dieses Dokument legt ein Verfahren zur Bewertung des Oberflächenreflexionsgrades von Möbeloberflächen fest und bezieht sich auf starre Oberflächen aller fertigen Produkte unabhängig von den Werkstoffen; nicht von diesem Dokument erfasst sind Oberflächenbehandlungen auf Leder und Textilien.
Dieses Dokument ist für die Prüfung anzuwenden, die für die Durchführung am gebrauchsfertigen Möbel vorgesehen ist, aber auch an Prüfkörpern durchgeführt werden kann, die aus dem gleichen Werkstoff mit identischer Oberflächenbehandlung wie das Möbel bestehen und groß genug sind, um den Anforderungen der Prüfung zu entsprechen.
Das Prüfverfahren ist bei einigen Metallic- und Perlmuttlackierungen nicht anzuwenden.

Ameublement - Évaluation de la luminance lumineuse des surfaces

No Scope Available

Pohištvo - Ocenjevanje odbojnosti površine

Ta dokument določa metodo za ocenjevanje odbojnosti površin pohištva in se navezuje na trdne površine vseh končanih izdelkov ne glede na material, razen za zaključke iz usnja in blaga, ki so izključeni iz tega dokumenta.
Preskus naj bi se izvedel na končanem kosu pohištva, izvesti pa ga je mogoče tudi na preskusnih ploščah iz istega materiala, ki so obdelane na identičen način kot končan izdelek in dovolj velike, da ustrezajo zahtevam preskusa.
Preskusna metoda se ne uporablja za nekatere kovinske barve in biserne premaze.

General Information

Status
Published
Publication Date
25-Apr-2023
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
26-Apr-2023
Due Date
21-Apr-2023
Completion Date
26-Apr-2023

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 13721:2023
01-julij-2023
Nadomešča:
SIST EN 13721:2004
Pohištvo - Ocenjevanje odbojnosti površine
Furniture - Assessment of the surface reflectance
Möbel - Bewertung des Oberflächenreflexionsgrades
Ameublement - Évaluation de la luminance lumineuse des surfaces
Ta slovenski standard je istoveten z: EN 13721:2023
ICS:
97.140 Pohištvo Furniture
SIST EN 13721:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 13721:2023

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SIST EN 13721:2023


EN 13721
EUROPEAN STANDARD

NORME EUROPÉENNE

April 2023
EUROPÄISCHE NORM
ICS 97.140 Supersedes EN 13721:2004
English Version

Furniture - Assessment of the surface reflectance
Ameublement - Évaluation de la luminance lumineuse Möbel - Bewertung des Oberflächenreflexionsgrades
des surfaces
This European Standard was approved by CEN on 17 March 2023.

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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13721:2023 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
SIST EN 13721:2023
EN 13721:2023 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 5
5 Viewing/illumination condition geometry . 5
6 Standard colorimetric observer and standard illuminant . 6
7 Equipment . 6
7.1 General. 6
7.2 Conditioning chamber . 6
7.3 Cleaning cloth . 6
8 Preparation and conditioning of test units/test panels. 7
9 Instrument calibration . 7
9.1 Calibration . 7
9.2 Reference scale . 7
9.3 Reference standards (primary and working) . 7
10 Test Procedure . 7
11 Test report . 8
Bibliography . 9

2

---------------------- Page: 4 ----------------------
SIST EN 13721:2023
EN 13721:2023 (E)
European foreword
This document (EN 13721:2023) has been prepared by Technical Committee CEN/TC 207 “Furniture”,
the secretariat of which is held by UNI.
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 October 2023, and conflicting national standards shall
be withdrawn at the latest by October 2023.
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 13721:2004.
The main changes compared to the previous edition are listed below:
— revised scope: test method is not applicable to some metallic paints and pearly coatings;
— normative references updated;
— additional terms and definitions “final inspection”, “colorants control” added;
— revised Table 1 Recommended measurement geometries;
— additional 7.2 Conditioning chamber and 7.3 Cleaning cloth added;
— document editorially revised in its entirety.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the United
Kingdom.
3

---------------------- Page: 5 ----------------------
SIST EN 13721:2023
EN 13721:2023 (E)
1 Scope
This document specifies a method for the assessment of the surface reflectance of furniture surfaces and
relates to rigid surfaces of all finished products regardless of materials, except for finishes on leather and
fabrics, which are excluded from this document.
This document is applicable to the test, 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.
The test method is not applicable to some metallic paints and pearly coatings.
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/CIE 11664-1:2019, Colorimetry - Part 1: CIE standard colorimetr
...

SLOVENSKI STANDARD
oSIST prEN 13721:2021
01-december-2021
Pohištvo - Ocenjevanje odbojnosti površine
Furniture - Assessment of the surface reflectance
Möbel - Bewertung des Oberflächenreflexionsgrades
Ameublement - Évaluation de la luminance lumineuse des surfaces
Ta slovenski standard je istoveten z: prEN 13721
ICS:
97.140 Pohištvo Furniture
oSIST prEN 13721:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 13721:2021

---------------------- Page: 2 ----------------------
oSIST prEN 13721:2021


DRAFT
EUROPEAN STANDARD
prEN 13721
NORME EUROPÉENNE

EUROPÄISCHE NORM

October 2021
ICS 97.140 Will supersede EN 13721:2004
English Version

Furniture - Assessment of the surface reflectance
Ameublement - Évaluation de la luminance lumineuse Möbel - Bewertung des Oberflächenreflexionsgrades
des surfaces
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 207.

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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13721:2021 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 13721:2021
prEN 13721:2021 (E)
Contents Page

European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 5
5 Viewing/illumination condition geometry . 5
6 Standard colorimetric observer and standard illuminant . 6
7 Equipment . 6
7.1 General. 6
7.2 Conditioning chamber . 6
7.3 Cleaning cloth . 6
8 Preparation and conditioning of test units/test panels. 7
9 Instrument calibration . 7
9.1 Calibration . 7
9.2 Reference scale . 7
9.3 Reference standards (primary and working) . 7
10 Test Procedure . 7
11 Test report . 8
Bibliography . 9


2

---------------------- Page: 4 ----------------------
oSIST prEN 13721:2021
prEN 13721:2021 (E)
European foreword
This document (prEN 13721:2021) has been prepared by Technical Committee CEN/TC 207
“Furniture”, the secretariat of which is held by UNI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13721:2004.
Compared to EN 13721:2004, the following modification has been made:
— revised scope: test method is not applicable to some metallic paints and pearly coatings;
— normative references updated;
— additional terms and definitions “final inspection”, “colorants control” added;
— revised Table 1 Recommended measurement geometries;
— additional 7.1 Conditioning chamber and 7.2 Cleaning cloth added;
— document editorially revised in its entirety.
3

---------------------- Page: 5 ----------------------
oSIST prEN 13721:2021
prEN 13721:2021 (E)
1 Scope
This document specifies a method for the assessment of the surface reflectance of furniture surfaces
and relates to rigid surfaces of all finished products regardless of materials, except for finishes on
leather and fabrics, which are excluded from this document.
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.
The test method is not applicable to some metallic paints and pearly coatings.
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/CIE 11664-1:2019, Colorimetry – Part 1: CIE standard colorimetric observers
EN ISO 11664-2, Colorimetry - Part 2: CIE standard illuminants (ISO 11664-2)
EN ISO/CIE 11664-3, Colorimetry - Part 3: CIE tristimulus values
EN ISO 18314-1:2018, Analy
...

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