EN 12722-2009 en Furniture - Assessment of surface resistance to dry heat (Incorporates Amendment A1 2013)《家具 表面干热耐受性的评定》.pdf

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1、BSEN 12722:2009ICS 97.140NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDFurnitureAssessmentof surfaceresistancetodryheat+A1:2013National forewordThis British Standard is the UK implementation of EN 12722:2009+A1:2013. It supersedes BS EN 12722:2009 which is wit

2、hdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“.The UK participation in its preparation was entrusted b

3、y Technical Committee FW/0, Furniture to Subcommittee FW/0/1, Common Test Methods for Furniture.A list of organizations represented on this subcommittee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are resp

4、onsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 12722:2009+A1:2013This British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 March2009 The British Standards Institution 2014. Publ

5、ished by BSI Standards Limited2014Amendments/corrigenda issued since publicationDate Comments 28 February 2014 Implementation of CEN amendment A1:2013ISBN 978 0 580 82223 0EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12722:2009+A1 October 2013 ICS 97.140 English Version Furniture - Assessmen

6、t of surface resistance to dry heat Meubles - 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 by CEN on 3 September 2013. CEN m

7、embers 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 applic

8、ation 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 Mana

9、gement 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, Iceland, Ireland, Italy, Latvi

10、a, 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 Management Centre: Avenue Marni

11、x 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 2 Foreword This document (EN 12722:2009+A1:2013) has been prepared by Technical Committee CEN/TC 207 “Furniture”, the secretariat of w

12、hich 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 April 2014, and conflicting national standards shall be withdrawn at the latest by April 2014. Attention is drawn to the possib

13、ility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not 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

14、and finish of text introduced or altered by amendment is indicated in the text by tags !“. Informative !Annex A“ provides details of significant technical changes between this European Standard and the previous edition. According to the CEN/CENELEC Internal Regulations, the national standards organi

15、zations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Net

16、herlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12722:2009+A1:2013 EN 12722:2009+A1:2013 (E)3 Contents Page 1 Scope 4 2 Normative references . 4 3 Terms and definitions 4 4 Principle 5 5 Apparatus and materials 5 5.1 T

17、hermometer 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 temperatures 7 8 Examination of the test panel 8 9 Assessment of r

18、esults . 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 source . 6 BS EN 12722:2009+A1:2013 EN 12722:2009+A1:2013 (E)4 1 S

19、cope 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 out on a part of the finished furniture, but can be carried o

20、ut 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 references !The following documents, in whole or in part, are

21、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) applies.“ EN ISO 4287:1998, Geometrical Product Specifications (GP

22、S) 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 surface texture (ISO 4288:1996) ISO 209:2007, Aluminium and alumi

23、nium 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 NOTE It may be cut from a finished item of furniture or it may

24、 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) BS EN 12722:2009+A1:2013 EN 12722:2009+A1:2013 (E)5 3.4 roughness Ra arithmetic mean of the absolute values o

25、f 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 test panel left undisturbed for at least 16 h. It is th

26、en 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 and materials 5.1 Thermometer As specified in ISO 1770:

27、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 alloy according to ISO 209:2007, Al Mg Si (alloy shall c

28、ontain 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 applicable: Dimensions: 0,2 mm of the nominal dimension; Angl

29、es: 2 of the nominal angle. BS EN 12722:2009+A1:2013 EN 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. 5.4 Cleaning cloth White soft absorbent cloth. 5.5

30、 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 source providing evenly diffused light, giving an i

31、llumination 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 should have a correlated colour temperature of (6 50

32、0 50) K and an Ragreater than 92, by using a colour matching booth in accordance with EN ISO 3668:2001. 1 BS EN 12722:2009+A1:2013 EN 12722:2009+A1:2013 (E)7 6 Preparation and conditioning 6.1 Conditioning Conditioning of test surface shall begin at least one week before testing and shall be carried

33、 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 7. 7 Test procedure 7.1 Testing Immediately

34、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 surfaces, and between the perimeters of the test su

35、rfaces 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 tests shall be carried out simultaneously. Th

36、e 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). Place the thermometer (5.1) or other means

37、 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 reaches the specified test temperature with an

38、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 surface to stand undisturbed from 16 h to 24

39、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 BS EN 12722:2009+A1:2013 EN 12722:2009+A1:201

40、3 (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 separately using the light source (5.6) and ex

41、amine 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 surface. 9 Assessment of results Rate the tes

42、t 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 distinguishable from adjacent surrounding ar

43、ea, 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 Moderate change test area distinguishable f

44、rom 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 distinguishable from adjacent surrounding area, visible

45、 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 discoloration, change in gloss and colour,

46、 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 reported rating for the test surface shall

47、 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: BS EN 12722:2009+A1:2013 EN 12722:2009+A1:2013 (E)9 a) reference to this European Standard; b) description of the

48、test panel (relevant data); c) the test temperature or temperatures; d) conditioning time; e) the assessment of each test surface in accordance with Clause 9; !deleted text“ f) if applicable, additional information regarding type of damage; g) any deviations from this European standard; h) name and

49、address of the test facility; i) date of the test. BS EN 12722:2009+A1:2013 EN 12722:2009+A1:2013 (E)!deleted text“ BS EN 12722:2009+A1:2013 EN 12722:2009+A1:2013 (E)11 Annex A (informative) Significant technical changes in revised edition of this standard Significant technical differences between this document and EN 12722:1997 are as follows: a) change in the illumination of the diffuse light source; it is now (1200 400) lx; !deleted text“ b) changes in the descriptive numerical rating code: new descripti