EN 12720:2009
(Main)Furniture - Assessment of surface resistance to cold liquids
Furniture - Assessment of surface resistance to cold liquids
This European standard specifies a method for the assessment of the resistance to cold liquids of all rigid furniture surfaces regardless of materials.
It does not apply to leather and textile surfaces.
The test is intended to be carried out on a part of the 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 shall be carried out on unused surfaces.
The type and number of test liquids (Annex A) and the test periods (Table 1) shall be stated in requirement specifications or shall be agreed upon between purchaser and supplier or interested parties.
Annex A (normative) includes a selection of suitable test liquids. Other liquids can be used if required.
Annex B (informative) describes a direct light source.
Möbel - Bewertung der Beständigkeit von Oberflächen gegen kalte Flüssigkeiten
Diese Europäische Norm legt ein Bewertungsverfahren für die Beständigkeit von Oberflächen gegen kalte
Flüssigkeiten für starre Möbeloberflächen unabhängig von den verwendeten Werkstoffen fest.
Sie gilt nicht für Oberflächen aus Leder und Textilien.
Die Prüfung ist zur Durchführung an einem Teil des oberflächenbehandelten Möbelstücks gedacht, kann aber
auch an Prüflingen durchgeführt werden, die aus dem gleichen Werkstoff mit identischer Oberflächenbehandlung
wie das oberflächenbehandelte Produkt und groß genug sind, um den Anforderungen der Prüfung zu
entsprechen.
Die Prüfung muss auf unbenutzten Oberflächen durchgeführt werden.
Die Art und Anzahl der Prüfflüssigkeiten (Anhang A) und Prüfzeiten (Tabelle 1) müssen in den Anforderungsspezifikationen
dargelegt oder zwischen Hersteller und Händler oder den jeweiligen Interessenten festgelegt
werden.
Anhang A (normativ) beinhaltet eine Auswahl geeigneter Prüfflüssigkeiten. Falls es notwendig ist, können
andere Flüssigkeiten herangezogen werden.
Anhang B (informativ) beschreibt eine direkte Lichtquelle, die zur Bewertung des Prüfbereichs verwendet
werden kann.
Meubles - Évaluation de la résistance de la surface aux liquides froids
La présente Norme européenne spécifie une méthode d’évaluation de la résistance aux liquides froids de
toutes les surfaces d’ameublement rigides, indépendamment des matériaux.
Elle ne s’applique pas aux surfaces en cuir et en textile.
L’essai est destiné à être réalisé sur une partie du meuble fini mais il peut être effectué sur des panneaux
d’essai constitués du même matériau, de finition identique au produit fini et de dimensions suffisantes pour
satisfaire aux spécifications de l’essai.
L’essai doit être conduit sur des surfaces neuves.
Le type et le nombre des liquides d’essai ainsi que les durées d’essai (Annexe A) sont fixés dans les
spécifications ou doivent faire l’objet d’un accord entre l’acheteur et le fournisseur ou les parties intéressées.
L’Annexe A (normative) inclus une sélection de liquides d’essai appropriés. D’autres liquides peuvent être
employés si nécessaire.
L’Annexe B (informative) décrit une source de lumière directe.
Pohištvo - Ocenjevanje odpornosti površine proti hladnim tekočinam
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.PMöbel - Bewertung der Beständigkeit von Oberflächen gegen kalte FlüssigkeitenMeubles - Évaluation de la résistance de la surface aux liquides froidsFurniture - Assessment of surface resistance to cold liquids97.140PohištvoFurnitureICS:Ta slovenski standard je istoveten z:EN 12720:2009SIST EN 12720:2009en,fr,de01-junij-2009SIST EN 12720:2009SLOVENSKI
STANDARDSIST EN 12720:19971DGRPHãþD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12720February 2009ICS 97.140Supersedes EN 12720:1997
English VersionFurniture - Assessment of surface resistance to cold liquidsMeubles - Évaluation de la résistance de la surface auxliquides froidsMöbel - Bewertung der Beständigkeit von Oberflächengegen kalte FlüssigkeitenThis European Standard was approved by CEN on 3 January 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12720:2009: ESIST EN 12720:2009
Liquids for testing surface . 11 A.1 General . 11 A.2 Liquids . 11 Annex B (informative)
Direct light source. 13 B.1 General . 13 B.2 Apparatus . 13 Annex C (informative)
Significant technical changes in revised edition of this standard . 15 Bibliography . 16
Tables Table 1 — Test periods.8 Table 2 — Descriptive numerical rating code .9 Table A.1 — Liquids. 11
1 Scope This European standard specifies a method for the assessment of the resistance to cold liquids of all rigid furniture surfaces regardless of materials. It does not apply to leather and textile surfaces. The test is intended to be carried out on a part of the 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 shall be carried out on unused surfaces. The type and number of test liquids (Annex A) and the test periods (Table 1) shall be stated in requirement specifications or shall be agreed upon between purchaser and supplier or interested parties. Annex A (normative) includes a selection of suitable test liquids. Other liquids can be used if required. Annex B (informative) describes a direct light source. 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 105 – E04:1996, Textiles – Tests for colour fastness – Part E04: Colour fastness to perspiration (ISO 105-E04:1994) ISO 1065:1991, Non-ionic surface-active agents obtained from ethylene oxide and mixed non-ionic surface-active agents – Determination of cloud point
3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 test panel panel including the test surface NOTE It may be cut from a finished item of furniture or it may be a separate panel produced in the same manner as the finished item of furniture. 3.2 test surface part of the test panel
3.3 test area part of the test surface under the glass Petri dish (5.2) SIST EN 12720:2009
NOTE The daylight should be unaffected by surrounding trees, etc. When artificial daylight is used it is recommended that it should have a correlated colour temperature of (6500 ± 50) K and an Ra greater than 92, by using a colour matching booth in accordance with EN ISO 3668:2001. [1] 5.7 Test liquid Examples of the test liquids are given in Annex A (normative). 5.8 Deionized or distilled water 5.9 Cleansing solution Solution containing 15 ml/l of the cleansing agent (5.10) in water (5.8). The solution shall be discarded after one day. 5.10 Cleansing agent
Cleansing agent of the following composition:
a) 12,5% (m/m) of a sodium primary C10 to C14 polymer alkyl aryl sulphonate, SIST EN 12720:2009
The conditioning time shall be stated in the test report. 6.2 Test surface
The test surface shall be substantially flat and of a size sufficient to meet the requirements of Clause 7 regarding the separation of the discs (5.1).
7 Test procedure 7.1 Testing Immediately after conditioning, the test shall be carried out in a test atmosphere of (23 ± 2) °C.
The test surface shall be placed horizontally. It shall be tested with the chosen test liquids at points which shall be not less than 60 mm apart, from centre to centre, and if possible, with centres not less than 40 mm from any edge of the test surface. If there is any reason to suppose that the properties of the test surface may vary, two tests shall be carried out. The test surface shall be lightly wiped with a cleaning cloth (5.5) before testing. Use clean tweezers for each type of liquid. Immerse a disc (5.1) into the test liquid (5.7) between 30 s and 60 s, lift with the tweezers (5.3) and quickly wipe off the edge of the disc once against the edge of the vessel. Quickly place it on the test surface and immediately cover with an inverted glass Petri dish (5.2). The filter paper shall not be in contact with the edge of the glass Petri dish. Record the position of each test liquid.
After the test period, remove the glass Petri dish and lift off the disc with the tweezers. Do not remove fibres of paper adhering to the test surface. Soa
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