1、February 2014 Translation by DIN-Sprachendienst.English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 97.140!%,J“2093995www.din.deDDIN EN 12722Furniture Assessment of surface resistance to dry heat;English version EN 12722:2009+A1:2013,English translation of DIN EN 12722:2014-02Mbel Bewertung der Bestndigkeit von Oberflchen gegen trockene Hitze;Englische Fassung EN 12722:2009+A1:2013,Englische ber
3、setzung von DIN EN 12722:2014-02Ameublement valuation de la rsistance de la surface la chaleur sche;Version anglaise EN 12722:2009+A1:2013,Traduction anglaise de DIN EN 12722:2014-02SupersedesDIN EN 12722:2009-07www.beuth.deIn case of doubt, the German-language original shall be considered authorita
4、tive.Document comprises 14 pages 01.14 DIN EN 12722:2014-02 2 A comma is used as the decimal marker. National foreword This document (EN 12722:2009+A1:2013) has been prepared by Technical Committee CEN/TC 207 “Furniture”, (Secretariat: UNI, Italy). The responsible German body involved in its prepara
5、tion was the Normenausschuss Holzwirtschaft und Mbel (Timber and Furniture Standards Committee), Working Committee NA 042-05-08 AA Gemeinschaftsarbeitsausschuss NHM/NAB: Anforderungen und Prfverfahren fr Mbeloberflchen, SpA CEN/TC 207/WG 7. Amendments This standard differs from DIN EN 12722:2009-07
6、as follows: a) the former Annex A “Direct light source” and all references to Annex A have been deleted. Previous editions DIN 68861-7: 1985-04 DIN EN 12722: 1997-10, 2009-07 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12722:2009+A1 October 2013 ICS 97.140 Supersedes EN 12722:2009 English V
7、ersion Furniture - Assessment of surface resistance to dry heat Ameublement - valuation de la rsistance de la surface la chaleur sche Mbel - Bewertung der Bestndigkeit von Oberflchen gegen trockene Hitze This European Standard was approved by CEN on 3 January 2009 and includes Amendment 1 approved b
8、y CEN on 3 September 2013. 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 sta
9、ndards 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
10、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
11、, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC
12、 Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12722:2009+A1:2013: E EN 12722:2009+A1:2013(E)2 Contents Page Foreword . 3 1 Scope 4 2 Normative references . 4 3 Terms and
13、definitions 4 4 Principle 5 5 Apparatus and materials 5 5.1 Thermometer 5 5.2 Heat source 5 5.3 Oven 6 5.4 Cleaning cloth 6 5.5 Heat-insulating foam 6 5.6 Diffuse light source 6 6 Preparation and conditioning 7 6.1 Conditioning . 7 6.2 Test surface 7 7 Test procedure . 7 7.1 Testing 7 7.2 Test tempe
14、ratures 7 8 Examination of the test panel 8 9 Assessment of results . 8 10 Test report 8 Annex A (informative) Significant technical changes in revised edition of this standard . 11 Bibliography 12 Tables Table 1 Descriptive numerical rating code 8 Figures Figure 1 Aluminium block used as heat sourc
15、e . 6 DIN EN 12722:2014-02 EN 12722:2009+A1:2013 (E) 3 Foreword This document (EN 12722:2009+A1:2013) 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 publicati
16、on of an identical text or by endorsement, at the latest by April 2014, and conflicting national standards shall be withdrawn at the latest by April 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall no
17、t be held responsible for identifying any or all such patent rights. This document includes Amendment 1 approved by CEN on 2013-09-03. This document supersedes !EN 12722:2009“. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. Informative !Annex A“
18、provides details of significant technical changes between this European Standard and the previous edition. 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, Cyp
19、rus, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the Unite
20、d Kingdom. DINEN 12722:2014-02EN 12722:2009+A1:2013 (E) 4 1 Scope This European Standard specifies a method for the assessment of the resistance to dry heat of all rigid furniture surfaces regardless of materials. It does not apply to leather and textile surfaces. The test is intended to be carried
21、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 should be carried out on unused surfaces. !deleted text“ 2 Normative r
22、eferences !The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) appli
23、es.“ EN ISO 4287:1998, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters (ISO 4287:1997) EN ISO 4288:1997, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surf
24、ace texture (ISO 4288:1996) ISO 209:2007, Aluminium and aluminium alloys Chemical composition ISO 1770:1981, Solid-stem general purpose thermometers 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 N
25、OTE 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 heat source (5.2) DINEN 12722:2014-02EN 12722:2009+A1:2013(E)5 3.4
26、 roughness Ra arithmetic mean of the absolute values of the profile deviations from the mean line 4 Principle A standard aluminium alloy block at a specified test temperature is placed on the test surface. After a specified period of time the block is removed. The test surface is wiped dry and the t
27、est panel left undisturbed for at least 16 h. It is then examined under specified lighting conditions for signs of damage (discolouration, change in gloss and colour, blistering, swelling or other defects). Assessment of the test results in terms of a descriptive numerical rating code. 5 Apparatus a
28、nd materials 5.1 Thermometer As specified in ISO 1770:1981, capable of insertion to the bottom of the centre bore of the heat source (5.2) or other means of measuring the temperature of the heat source to an accuracy of 1 C. 5.2 Heat source A block as shown in Figure 1 manufactured from aluminium al
29、loy according to ISO 209:2007, Al Mg Si (alloy shall contain more than 94% aluminium). The roughness of bottom surface shall be (2 1) m, expressed as Ra, according to EN ISO 4287:1998 and EN ISO 4288:1997. NOTE Alloy 6060 and 64430 are suitable For this document, the following tolerances are applica
30、ble: Dimensions: 0,2 mm of the nominal dimension; Angles: 2 of the nominal angle. DINEN 12722:2014-02EN 12722:2009+A1:2013 (E) 6 Dimensions in millimetres Figure 1 Aluminium block used as heat source 5.3 Oven An oven which can heat the heat source to a temperature higher than the test temperature. 5
31、.4 Cleaning cloth White soft absorbent cloth. 5.5 Heat-insulating foam A melamine foam, with the following characteristics: density between 8,5 kg/m3and 11,5 kg/m3; heat conductivity, less than 0,035 W/mK. The foam shall withstand at a temperature higher than 200 C. 5.6 Diffuse light source Light so
32、urce providing evenly diffused light, giving an illumination on the test surface of (1200 400) lx. This may either be diffused daylight or be diffused artificial daylight. NOTE The daylight should be unaffected by surrounding trees, etc. When artificial daylight is used it is recommended that it sho
33、uld have a correlated colour temperature of (6 500 50) K and an Ragreater than 92, by using a colour matching booth in accordance with EN ISO 3668:2001. 1 DINEN 12722:2014-02EN 12722:2009+A1:2013 (E) 7 6 Preparation and conditioning 6.1 Conditioning Conditioning of test surface shall begin at least
34、one week before testing and shall be carried out in air at a temperature of (23 2) C and relative humidity of (50 5) %. 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
35、7. 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 accommodate the required number of tests, with at least 15 mm spacing between the perimeter of adjacent test surface
36、s, and between the perimeters of the test surfaces and the edges of the panel. Where tests are carried out simultaneously, the perimeters of the test surfaces shall be separated by a minimum of 50 mm. If there is any reason to suppose that the properties of the test surface may vary, two identical t
37、ests shall be carried out simultaneously. The test surface shall be lightly wiped with a cleaning cloth (5.4) before the test. Using the oven (5.3), raise the temperature of the heat source to a temperature higher than the specified test temperature, and transfer it to the heat insulating foam (5.5)
38、. Place the thermometer (5.1) or other means of measuring temperature in the centre bore of the heat source (5.2). If the temperature is not higher than the specified test temperature, the heat source shall be placed again in the oven until achieving this higher temperature. When the heat source rea
39、ches the specified test temperature with an accuracy of 1 C, immediately place it on the test surface. After 20 min in this position, remove the block. Wipe the test surface dry with the cleaning cloth when it has cooled. Record the position of each test surface and its temperature. Allow the test s
40、urface to stand undisturbed from 16 h to 24 h. Wipe each test surface with the cleaning cloth (5.4) and examine the test panel. 7.2 Test temperatures The test temperatures shall be stated in requirement specifications, selected from the following: 55 C 70 C 85 C 100 C 120 C 140 C 160 C 180 C 200 C D
41、IN EN 12722:2014-02 EN 12722:2009+A1:2013 (E) 8 8 Examination of the test panel Carefully examine the test surface, with light coming from all directions, for damage, e.g. discoloration, change in gloss and colour, blistering, swelling and other defects. For this purpose illuminate the surface separ
42、ately using the light source (5.6) and examine from different angles, including angle combinations such that the light is reflected from the test surface and towards the observers eye. Viewing distance shall be 0,25 m to 1,0 m. Changes caused by the test shall also be determined by touching the surf
43、ace. 9 Assessment of results Rate the test surfaces by comparing the test area with the area surrounding it according to Table 1: Table 1 Descriptive numerical rating code Numerical rating Description 5 No change test area indistinguishable from adjacent surrounding area 4 Minor change test area dis
44、tinguishable from adjacent surrounding area, only when the light source is mirrored on the test surface and is reflected towards the observers eye, e. g. discoloration, change in gloss and colour no change in the surface structure, e.g. deformation, swelling, fibre raising, cracking, blistering 3 Mo
45、derate change test area distinguishable from adjacent surrounding area, visible in several viewing directions, e. g. discoloration, change in gloss and colour no change in the surface structure, e.g., swelling, fibre raising, cracking, blistering 2 Significant change test area clearly distinguishabl
46、e from adjacent surrounding area, visible in all viewing directions, e. g. discoloration, change in gloss and colour, and / or structure of the surface slightly changed, e.g. swelling, fibre raising, cracking, blistering 1Strong change the structure of the surface being distinctly changed and / or d
47、iscoloration, change in gloss and colour, and / or the surface material being totally or partially removed Each test surface shall be rated by an experienced observer. In cases of doubt, three observers shall be required. All observers shall have good colour vision. In case of three observers, the r
48、eported rating for the test surface shall be the average to the nearest nominal value. Duplicate tests shall be assessed and reported separately. 10 Test report The test report shall include at least the following information: DINEN 12722:2014-02EN 12722:2009+A1:2013(E)9 a) reference to this European Standard; b) description of the test panel (relevant data); c) the test temperature or temperatures; d) conditioning time; e) the assessment of each test surface in accordance
