1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15185:2011Furniture Assessment of thesurface resistance to abrasionBS EN 15185:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15
2、185:2011. Itsupersedes DD CEN/TS 15185:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee FW/0/1, Common Test Methods for Furniture.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does
3、not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 68630 6ICS 97.140Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theSt
4、andards Policy and Strategy Committee on 31 May 2011.Amendments issued since publicationDate Text affectedBS EN 15185:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15185 May 2011 ICS 97.140 Supersedes CEN/TS 15185:2005English Version Furniture - Assessment of the surface resistance to abr
5、asion Ameublement - valuation de la rsistance de la surface labrasion Mbel - Bewertung der Abriebfestigkeit von Oberflchen This European Standard was approved by CEN on 24 March 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
6、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 officia
7、l 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 Au
8、stria, Belgium, Bulgaria, Croatia, 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. EU
9、ROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15185:2011: EBS EN 15185:2
10、011EN 15185:2011 (E) 2 Contents Page Foreword 31 Scope 32 Normative references 33 Terms and definitions .44 Principle 45 Apparatus and materials .45.1 Cleaning cloth 45.2 Calibration plates .45.3 Abrasion paper strips 55.4 Test apparatus .55.5 Balance .55.6 Conditioning chamber .55.7 Diffuse light s
11、ource .56 Preparation and conditioning .66.1 Conditioning .66.2 Test surface 66.3 Preparation of test surfaces and abrasive paper .67 Test procedure .67.1 Preparation of abrasive wheels 67.2 Calibration of abrasive paper .67.3 Abrasion of test area .77.4 Determination of Initial Wear Point (IP) .77.
12、4.1 General 77.4.2 Foil, laminate and melamine faced boards .87.4.3 Pigmented lacquers .87.4.4 Transparent coatings 88 Assessment of results 89 Test report 9Annex A (normative) Calibration and maintenance of abrasion equipment 10A.1 General . 10A.2 Apparatus 10A.2.1 Calibration block . 10A.2.2 Feele
13、r gauges 10A.2.3 Shim washers 10A.3 Procedure 11A.3.1 Bearing wear . 11A.3.2 Shaft wear 11A.3.3 Alignment 11A.3.4 Alignment dual head abrader . 11Annex B (normative) Examples of abrasion traces 14Annex C (informative) Significant technical changes in revised edition of this standard . 16Bibliography
14、 . 17BS EN 15185:2011EN 15185:2011 (E) 3 Foreword This document (EN 15185:2011) 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 tex
15、t or by endorsement, at the latest by November 2011, and conflicting national standards shall be withdrawn at the latest by November 2011. 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 not be held respon
16、sible for identifying any or all such patent rights. This document supersedes CEN/TS 15185:2005. Annex C lists the significant changes in the revised edition of this standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound
17、 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, Romania, Slovakia, Slovenia, Spain, Sw
18、eden, Switzerland and the United Kingdom. 1 Scope This European Standard specifies a method for the assessment of the abrasion resistance of surfaces referred to under 7.4. It does not apply to leather and textile surfaces. It does not apply to the surfaces covered by EN 14434. The test is intended
19、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. 2 Normative ref
20、erences 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 6506-1, Metallic materials Brinell
21、 hardness test Part 1: Test method (ISO 6506-1:2005) ISO 9352, Plastics Determination of resistance to wear by abrasive wheels BS EN 15185:2011EN 15185:2011 (E) 4 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 test surface part of the test p
22、anel 3.2 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. 3.3 test area part of the test surface under the wheels covered by the abrasion paper strips (5.3) 3.
23、4 colour rendering index (CRI or Ra) unitless number that specifies how well the colour of an object appears under illumination by a light source compared to a reference light source 4 Principle The test simulates the ability of the furniture surface under test, to resist abrasive wear-through. Abra
24、sion is achieved by rotating a specimen in contact with a pair of loaded cylindrical wheels covered with abrasive paper. The wheels are positioned so that their cylindrical faces are equidistant from the specimens axis of rotation but not tangential to it. As they are turned by the rotating specimen
25、 they abrade an annular track on the specimens surface. The number of revolutions of the specimen required to cause one defined degree of abrasion, is used as measurement of resistance to surface wear. 5 Apparatus and materials 5.1 Cleaning cloth White soft absorbent cloth. 5.2 Calibration plates Ta
26、ber S-341)or equivalent, having a thickness of (0,8 0,1) mm and a Brinell hardness of (48 2) when tested in accordance with EN ISO 6506-1, except that the ball diameter shall be 5 mm and the load 360 N. 1) Taber S-34 is the trade name of a product supplied by Taber. This information is given for the
27、 convenience of users of this document and does not constitute an endorsement by CEN of the product named. Equivalent products may be used if they can be shown to lead to the same results. BS EN 15185:2011EN 15185:2011 (E) 5 5.3 Abrasion paper strips Taber S-422)or equivalent, of width (12,7 0,1) mm
28、 and length about 160 mm, according to the following specification: a) paper of grammage from 70 g/m2to 100 g/m2; b) open coated 180 grit powdered aluminium oxide (Al2O3) having a particle size such that it will pass through a sieve of aperture 100 m and remain on a sieve having an aperture of 63 m;
29、 c) adhesive backing. 5.4 Test apparatus As specified in ISO 9352 with following deviations: NOTE A suitable machine is available from Taber Acquisition Corp., Taber industries, 455 Bryant St P.O. Box 164, North Tonawanda, NY 14120, USA. This information is given for the convenience of users of this
30、 European standard and does not constitute an endorsement by CEN of the machine. a) the hardness of wheels rubber layer shall be between 60 and 70 Shore A, when measured in the middle of the contact surface; make 4 measurements and calculate the average value; The laboratories shall measure the hard
31、ness at least once every 6 months. b) weight of loading: every wheel shall apply a force (5,4 0,2) N on the sample; c) vacuum system: the distance between the vacuum suction nozzle (inlet vacuum system) and the test area shall be (1,5 0,5) mm. The vacuum system shall remove practically all the dust;
32、 d) the distance between the middle axis of the sample holder and the wheels shall be calibrated according to Annex A. 5.5 Balance The accuracy of the balance shall be 1 mg. 5.6 Conditioning chamber A chamber with a standard atmosphere of (23 2) C, relative humidity (50 5) %. 5.7 Diffuse light sourc
33、e Light source 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, buildings, etc. When artificial light is used it is recomm
34、ended that it should have a correlated colour temperature of (6500 + 50) K and a Ragreater than 92, by using a colour matching booth in accordance with EN ISO 3668. 2) Taber S-42 is the trade name of a product supplied by Taber. This information is given for the convenience of users of this document
35、 and does not constitute an endorsement by CEN of the product named. Equivalent products may be used if they can be shown to lead to the same results. BS EN 15185:2011EN 15185:2011 (E) 6 6 Preparation and conditioning 6.1 Conditioning Conditioning of test surface shall begin at least one week before
36、 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. Condition the abrasion paper strips at least for one week in the conditioning atmosphere of (23 2) C and (50 5) % R.H., before testing, s
37、ee 5.6. 6.2 Test surface Three test surfaces shall be prepared. The test surface shall be taken at least 5 mm from the edge of the test panel. Each test surface shall be a piece of test panel, shaped to fit the type of clamping device used. It shall usually be a square of 100 mm x 100 mm, and includ
38、ing an appropriated hole drilled in the centre to place the test surface in the axis of the apparatus. The test surface shall be carefully wiped with a cleaning cloth (5.1) before the test. The test surface shall be substantially flat. 6.3 Preparation of test surfaces and abrasive paper Using a suit
39、able marker pen, mark the surface of each test surface with two lines at right angles, diagonals, so that the surface area is divided into four quadrants, according to Figure 1. Figure 1 Test surface area divided into four quadrants 7 Test procedure 7.1 Preparation of abrasive wheels Bond a strip of
40、 conditioned unused abrasive paper to each of the rubber covered wheels. Ensure that the cylindrical surface is completely covered, but without any overlapping of the abrasive paper. 7.2 Calibration of abrasive paper Carry out this calibration three times for each box. BS EN 15185:2011EN 15185:2011
41、(E) 7 Prepare two abrasive wheels, in the correct hardness range (5.4), with conditioned unused strips of abrasive paper. Clamp a zinc plate in the specimen holder, start the vacuum device, set the revolution-counter to zero, lower the wheels, ensuring that the arms are horizontal and the load on th
42、e zinc plate is (5,4 0,2) N, and abrade the zinc plate for 500 revolutions. Wipe the zinc plate clean and weigh to the nearest 1 mg. Replace the abrasive paper on the wheels with preconditioned unused strips from the same batch, clamp the same zinc plate in the specimen holder, lower the abrasive wh
43、eels and operate the suction device. Abrade the zinc plate for an additional 500 revolutions, then wipe it clean and reweigh it to the nearest 1 mg. Any box containing abrasive paper which causes a loss in mass of the zinc plate which is outside (120 20) mg, for any pair of calibrate strips, shall n
44、ot be used for testing. The result (mean value of the 3 calibrations / 120) shall be named “correction factor“ and shall be included in the test report. 7.3 Abrasion of test area Perform the test immediately after removal of the test surface and calibrated abrasive paper from the conditioning atmosp
45、here. Prepare two wheels, in the correct hardness range, with preconditioned unused abrasive paper from the same box previously approved by calibration. Fit the wheels to the machine and set the revolution counter to zero. Clamp the test surface in the holder, ensuring that it is placed horizontally
46、. Lower the abrasive wheels on to the specimen, ensuring that the arms are horizontal and the load on the samples is (5,4 0,2) N. Start the vacuum device for removing practically all the dust, and begin abrading the test area. NOTE If the arms are not horizontal, then there are two possibilities: to
47、 modify appropriately the apparatus or to reduce appropriately the thickness of the test surface before the conditioning, see Clause 6. Before each assessment, in order to correctly assess the Initial Wear Point (IP), see 7.4, ensure the surface is free of dust. If needed, wipe with the cleaning clo
48、th. At the beginning of the test, the visual assessment shall be carried out, depending on the expected IP (see 7.4), as follows: under 200 revolutions, every 10 cycles; over 200 revolutions, every 25 cycles; over 500 revolutions, every 50 cycles; when close to IP, the assessment shall be carried ou
49、t every 10 cycles. Replace the abrasive paper after every 200 revolutions. Continue the test in this way until the IP is reached. Record the number of revolutions. 7.4 Determination of Initial Wear Point (IP) 7.4.1 General The determination of IP shall be established by one observer experienced in this type of assessment. In case of a dispute, three observers shall carry out the visual assessment. The determination of IP shall be car
