1、April 2012 Translation by DIN-Sprachendienst.English price group 10No 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).ICS
2、97.150!$G(“1883605www.din.deDDIN EN 16094Laminate floor coverings Test method for the determination of micro-scratch resistanceEnglish translation of DIN EN 16094:2012-04Laminatbden Prfverfahren zur Bestimmung der MikrokratzbestndigkeitEnglische bersetzung von DIN EN 16094:2012-04Revtements de sol s
3、tratifis Mthode dessai pour la dtermination de la rsistance aux micro-rayuresTraduction anglaise de DIN EN 16094:2012-04www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1403.12 DIN EN 16094:2012-04 2 A comma is used as the decimal m
4、arker. National foreword This standard has been prepared by Technical Committee CEN/TC 134 “Resilient, textile and laminate floor coverings”, (Secretariat:BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Holzwirtschaft und Mbel (Timber and Furnitu
5、re Standards Committee), Working Committee NA 042-04-30 AA Spiegelaus-schuss zu CEN/TC 134/WG 9 und ISO/TC 219/WG3 Laminatbden. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16094 January 2012 ICS 97.150 English Version Laminate floor coverings - Test method for the determination of micro-scr
6、atch resistance Revtements de sol stratifis - Mthode dessai pour la dtermination de la rsistance aux micro-rayures Laminatbden - Prfverfahren zur Bestimmung der Mikrokratzbestndigkeit This European Standard was approved by CEN on 26 November 2011. CEN members are bound to comply with the CEN/CENELEC
7、 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 t
8、o 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 offici
9、al 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, Romania, Slova
10、kia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved wo
11、rldwide for CEN national Members. Ref. No. EN 16094:2012: EEN 16094:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Principle 45 Apparatus and materials .56 Assembly and maintenance of the Martindale tester .77 Preparation and conditioning .77.1 Prepar
12、ation .77.2 Test surface 78 Test procedure .78.1 General 78.2 Testing 88.2.1 Procedure A 88.2.2 Procedure B 99 Test report 9Annex A (normative) Method for checking the Lissajous figure 10Annex B (normative) Classification of the image after scratching according to procedure B 11Bibliography . 12DIN
13、EN 16094:2012-04 EN 16094:2012 (E) 3 Foreword This document (EN 16094:2012) has been prepared by Technical Committee CEN/TC 134 “Resilient, textile and laminate floor coverings”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either
14、by publication of an identical text or by endorsement, at the latest by July 2012, and conflicting national standards shall be withdrawn at the latest by July 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELE
15、C shall not be held responsible for identifying any or all such patent rights. 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, Croatia, Cyprus, Czech Republic
16、, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. DIN EN 16094:2012-04 EN 16094:2012 (E) 4 1 Scope Th
17、is European Standard specifies a test method for the micro-scratch resistance which can be used for all types of laminate floor coverings. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited ap
18、plies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 2813, Paints and varnishes Determination of specular gloss of non-metallic paint films at 20, 60 and 85 (ISO 2813) EN ISO 12945-2, Textiles Determination of fabric propensity to su
19、rface fuzzing and to pilling Part 2: Modified Martindale method (ISO 12945-2) EN ISO 12947-1, Textiles - Determination of the abrasion resistance of fabrics by the Martindale method Part 1: Martindale abrasion testing apparatus (ISO 12947-1) 3 Terms and definitions For the purposes of this document,
20、 the following terms and definitions apply. 3.1 cycle completion of all the translational movements tracing a Lissajous figure comprising 16 rubs NOTE This comprises of 16 revolutions of the two outer drives and 15 revolutions of the inner drive of the Martindale tester. 3.2 Lissajous figure figure
21、created by movement which changes from a circle gradually narrowing ellipses, until it becomes a straight line, from which progressively widening ellipses develop, in a diagonally opposite direction before the pattern is repeated 3.3 rub one revolution of the two outer drives of the Martindale teste
22、r 4 Principle The sample is fixed on a horizontal table. A circular scrub material fixed on a holder impacts on the sample with a defined load. Table and holder are moved perpendicular to each other in a translational movement, with defined frequencies, tracing a Lissajous figure. The holder is addi
23、tionally freely rotatable around its own axis perpendicular to the horizontal plane. The sample is exposed to the scrub material for a predetermined number of rubs. The changes of the surface are determined by gloss measurement and visual assessment. DIN EN 16094:2012-04 EN 16094:2012 (E) 5 5 Appara
24、tus and materials 5.1 Martindale tester: The Martindale tester shall be as described in EN ISO 12947-1 with the following exceptions: the “abrading table” is the table for the sample; the “clamping ring and mechanism” is not necessary; the “specimen holder” is the holder for the scrub material; the
25、“loading pieces” are not necessary. 5.2 Holder for scrub material: The holder for scrub material shall be as described in EN ISO 12945-2, with the following exceptions: version 1: the rubber retaining ring is not required. This assembly consists of spindle, scrub holder and small ring weight. The to
26、tal mass of this assembly is (413 2) g (nominally called 4N); version 2: the assembly according to version 1, however the small ring weight is replaced by the large weight. The total mass of this assembly is (612 2) g (nominally called 6N). 5.3 Diffuse light source: Light source providing evenly dif
27、fused light giving an illumination on the test surface of (1 200 400) lx. This may be either diffuse daylight or diffuse artificial daylight. The daylight should be unaffected by surrounding trees, etc. When artificial daylight is used, it is recommended that it should have a correlated colour tempe
28、rature of (6 500 50) K and an Ragreater than 92, by using a colour matching booth in accordance with EN ISO 3668:2001 1. 5.4 Reflectometer: For gloss measurement with 3 angle measurement geometry as described in EN ISO 2813. 5.5 Positioning device: For gloss measurement on the same position before a
29、nd after the test with 4 measurement points. An example of a positioning device is shown in Figure 1. DIN EN 16094:2012-04 EN 16094:2012 (E) 6 Dimensions in millimetres Reflectometer direction of movement for the measurement Key 1 measurement area Figure 1 Sample with measurement area for the 4 glos
30、s measurement points 5.6 Scrub materials: The scrub material shall be a nylon web imbedded with alumina abrasive. Two types of scrub materials (very fine and medium fine) are to use. The scrub materials shall be cut or stamped on a diameter of (89 1) mm. NOTE Scotch Brite fleece SB 7447 (very fine)
31、and SB 7440 (medium fine) are examples of a suitable product available commercially. This information is given for the convenience of users of this European Standard and does not constitute an endorsement by CEN of this product. 5.7 Double-sided tape: The double-sided tape is to attach the scrub mat
32、erial on the guide plate of the holder and the sample on the table. 5.8 Soft cotton cloth: The soft cotton cloth is for cleaning of the samples before and after the test. DIN EN 16094:2012-04 EN 16094:2012 (E) 7 6 Assembly and maintenance of the Martindale tester The assembly of the tester shall be
33、carried out in accordance with the instructions of the apparatus manufacturer. For the described test, the outer position C shall be used for both axes to create the larger Lissajous figure as explained in EN ISO 12947-1 or the manufacture guidebook. The checking of the Lissajous figure shall be don
34、e according to Annex A. 7 Preparation and conditioning 7.1 Preparation Six samples with the dimensions of 150 mm 150 mm shall be prepared. The surface of the samples shall be substantially flat. If the panel width is smaller than 150 mm, assemble a sample of two parts with length joint in the middle
35、. 7.2 Test surface Conditioning of test surface shall begin at least one week before testing and shall be carried out in air at a temperature of (23 2) C and relative humidity of (50 5) %. 8 Test procedure 8.1 General Two different procedures (A / B) are described. All the necessary parameters (scru
36、b material, load, speed factor, number of cycles) are shown in Table 1. Table 1 Test procedures for determination of resistance to micro scratches Test parameter Procedure A Procedure B Scrub material Very fine Medium fine Holder for scrub material Version 2 (Sample holder plus large weight) Version
37、 1 (Sample holder plus small weight) Speed factor 1 1 Number of rubs 80 rubs (= 5 Lissajous movements) 160 rubs (= 10 Lissajous movements) Assessment Gloss change Visual according to Annex B DIN EN 16094:2012-04 EN 16094:2012 (E) 8 8.2 Testing 8.2.1 Procedure A Immediately after conditioning, the te
38、st shall be carried out in a test temperature of (23 2) C at 3 samples. Before starting the test, the samples shall be cleaned with a soft cotton cloth (5.8). Before the test, 4 gloss measurements on each sample using the reflectometer (5.4) with a geometry of 60 and the positioning device (5.5) sha
39、ll be carried out. If there is a decor or preferential structure direction or a joint on the sample the measurement shall be done parallel to this direction. Calculate the mean value for each sample. The gloss measurement on samples with a joint has to be made at least 5 mm away from the joint. If t
40、he mean value is higher than 70 (high gloss surface), four additional measurements with the 20 geometry shall be carried out. NOTE Polishing effects on mat surfaces (R 10 % to 30 % MSR-A3 30 % to 50 % MSR-A4 50 % to 70 % MSR-A5 70 % DIN EN 16094:2012-04 EN 16094:2012 (E) 9 8.2.2 Procedure B Immediat
41、ely after conditioning, the test shall be carried out in a test temperature of (23 2) C at 3 samples. Before starting the test, the samples shall be cleaned with a soft cotton cloth (5.8). Fix the sample on the table of the Martindale tester using the adhesive tape (5.7). The medium fine scrub mater
42、ial (5.6) shall be fixed on the guide plate of holder with the adhesive tape. Select 160 rubs on the counter of the Martindale device and start the test. After finishing, remove the sample from the table and clean it with the cotton cloth (5.8). Remove also the used scrub material. Store the samples
43、 for 24 h in the climate of (23 2) C and relative humidity of (50 5) %. Carefully examine the test surface with light coming from all directions for scratches using the scheme according to Annex B. For this purpose, illuminate the surface separately using the diffuse light source (5.3) and examine f
44、rom different angles, including angle combinations such that the light is reflected from the test surface and towards the observers eye. Viewing distance shall be (0,3 0,05) m. The visual assessment shall be done by observers experienced in visual assessments of surfaces. In a case of doubt, three o
45、bservers shall assess. If more than one observer has assessed the surface, calculate the mean value of the assessments for every sample and round it on the next integral number. Calculate the mean value of the three samples and round it on the next integral number. 9 Test report The test report shal
46、l include at least the following information: reference to this European Standard; description of the laminate floor coverings which the samples were taken from (if possible); the test temperature or temperatures; conditioning time; the mean values and classes for the results of the test according t
47、o procedures A and B with 8.2; any deviations from this European Standard; name and address of the test facility; date of the test. DIN EN 16094:2012-04 EN 16094:2012 (E) 10 Annex A (normative) Method for checking the Lissajous figure Obtain the Lissajous figure for each workstation by means of the
48、following method: Remove materials from the abrading tables. Cover each abrading table surface with a plain paper measuring (100 5) mm in diameter of minimum mass per unit area 100 g/m and secure paper to abrading table ensuring the surface is perfectly flat. Insert a steel sleeve of the same diameter as the specimen guide spindle counterbored to accept the introduction of a refill from a typical ballpoint pe
