DIN EN ISO 17076-1-2012 Leather - Determination of abrasion resistance - Part 1 Taber method (ISO 17076-1 2012) German version EN ISO 17076-1 2012《皮革 耐磨性的测定 第1部分 Taber法(ISO 17076-1.pdf

1、June 2012 Translation by DIN-Sprachendienst.English price group 7No 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 59

2、.140.30!$|s:“1898023www.din.deDDIN EN ISO 17076-1Leather Determination of abrasion resistance Part 1: Taber method (ISO 17076-1:2012)English translation of DIN EN ISO 17076-1:2012-06Leder Bestimmung des Abriebwiderstandes Teil 1: Taber-Verfahren (ISO 17076-1:2012)Englische bersetzung von DIN EN ISO

3、17076-1:2012-06Cuir Dtermination de la rsistance labrasion Partie 1: Mthode Taber (ISO 17076-1:2012)Traduction anglaise de DIN EN ISO 17076-1:2012-06Together with supersedesDIN EN 14327:2004-03www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered auth

4、oritative.DIN EN ISO 17076-2:2011-09,1005.12 DIN EN ISO 17076-1:2012-06 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 289 “Leather” (Secretariat: UNI, Italy) in collaboration with the International Union of Leather Technologi

5、sts and Chemists Societies (IULTCS). The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-05-51 AA Anforderungen und physika-lische Prfverfahren fr Leder und seine Ausgangsprodukte. The DIN St

6、andards corresponding to the International Standards referred to in this document are as follows: ISO 105-A02 DIN EN 20105-A02 ISO 2418 DIN EN ISO 2418 ISO 2419 DIN EN ISO 2419 Amendments This standard differs from DIN EN 14327:2004-03 as follows: a) the content has also been used for ISO 17076-1, w

7、hich has been adopted; Previous editions DIN EN 14327: 2004-03 National Annex NA (informative) Bibliography DIN EN 20105-A02, Textiles Tests for colour fastness Part A02: Grey scale for assessing change in colour DIN EN ISO 2418, Leather Chemical, physical and mechanical and fastness tests Sampling

8、location DIN EN ISO 2419, Leather Physical and mechanical tests Sample preparation and conditioning b) the text of the standard has been editorially revised. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17076-1 March 2012 ICS 59.140.30 Supersedes EN 14327:2003English Version Leather - De

9、termination of abrasion resistance - Part 1: Taber method (ISO 17076-1:2012) Cuir - Dtermination de la rsistance labrasion - Partie 1: Mthode Taber (ISO 17076-1:2012) Leder - Bestimmung des Abriebwiderstandes - Teil 1: Taber-Verfahren (ISO 17076-1:2012) This European Standard was approved by CEN on

10、14 March 2012. 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 standards may b

11、e 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 notified to

12、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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem

13、bourg, 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 Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN

14、All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17076-1:2012: EContents DIN EN ISO 17076-1:2012-06 EN ISO 17076-1:2012 (E) 2 Page Foreword 3 1 Scope 4 2 Normative references 4 3 Principle 4 4 Apparatus .4 5 Sampling and sample prep

15、aration .5 6 Procedure .5 6.1 Preparation of new wheels .5 6.2 Abrasion of test pieces .6 6.3 Reconditioning of abrasive wheels 6 7 Test report 7 Annex A (informative) Sources of apparatus .8 Foreword This document (EN ISO 17076-1:2012) has been prepared by Technical Committee CEN/TC 289 “Leather“,

16、the secretariat of which is held by UNI, in collaboration with IULTCS International Union of Leather Technologists and Chemists Societies . 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 Septembe

17、r 2012, and conflicting national standards shall be withdrawn at the latest by September 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 CENELEC shall not be held responsible for identifying any or all such patent

18、 rights. This document supersedes EN 14327:2003. 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, Denmark, Estonia, Finland, F

19、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. ”“ DIN EN ISO 17076-1:2012-06 EN ISO 17076-1:2012 (E) 3 1 Scope This part of

20、ISO 17076 specifies a method of determining the abrasion resistance of leather using a Taber apparatus. 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

21、latest edition of the referenced document (including any amendments) applies. ISO 2418, Leather Chemical, physical and mechanical and fastness tests Sampling location ISO 2419, Leather Physical and mechanical tests Sample preparation and conditioning ISO 105-A02, Textiles Tests for colour fastness P

22、art A02: Grey scale for assessing change in colour 3 Principle The test piece is rotated on a vertical axis against the sliding rotation of two abrading wheels which are pressed against the test piece with a specified force. One abrading wheel rubs the test piece outwards towards the periphery, the

23、other inwards to the centre. Any damage to the test piece is noted along with any change in colour. NOTE This method is also referred to as the “Taber Test”. 4 Apparatus 4.1 Horizontal, motor driven platform, rotating at (60 5) rpm. 4.2 Removable, flat, circular test piece holder. 4.3 Pair of pivote

24、d arms, for holding the abrasive wheels with the inner edge of the wheels (26,20 0,25) mm from the centre of the motor shaft and pressing each abrasive wheel against the test piece with a force of (2,5 0,1) N. 4.4 Vacuum nozzle, with inlet set just above the upper surface of the test piece. 4.5 Coun

25、ter, indicating the number of revolutions of the platform (4.1). DIN EN ISO 17076-1:2012-06 EN ISO 17076-1:2012 (E) 4 4.6 Abrasive wheels, tungsten carbide or rubber based, width (12,7 0,1) mm, maximum diameter 51,7 mm and minimum diameter 44,0 mm. Abrasive wheels are gradually abraded away during u

26、se. The maximum diameter of 51,7 mm is the diameter of a new wheel. Used wheels shall be discarded when the diameter falls to 44,0 mm. The type of tungsten carbide and rubber based wheels to be used should be agreed with the client and the type of wheel used reported in the test report 7 c). Other t

27、ypes of abrasive wheels can also be used at the clients request. The abrasive wheels used in the test should be of the same diameter. 4.7 Additional weights, to increase the force between the abrasive wheel and the test piece to (5,0 0,1) N or (10,0 0,1) N. 4.8 Specimen mounting sheet, such as a car

28、d of minimum 1,0 mm thickness, with an adhesive where necessary, to keep the test pieces rigid and flat. 4.9 Vacuum cleaner, domestic type, with an adapter to connect to the nozzle (4.4). 4.10 Abrasive paper, silicon carbide, grade E150. 4.11 Soft brush or compressed air. 4.12 Brush, stiff bristle.

29、4.13 Grey scale, for assessing change in colour conforming to ISO 105-A02. 5 Sampling and sample preparation 5.1 Sample in accordance with ISO 2418. NOTE If there is a requirement for more than two hides or skins to be tested in one batch, then only one sample need be taken from each hide or skin, p

30、rovided that the overall total is not less than three test pieces. 5.2 Apply the specimen mounting sheet (4.8) to the sample, if required. Cut three circular test pieces of diameter (106 1) mm with a central circular hole to fit over the central drive shaft. 5.3 Condition in accordance with ISO 2419

31、. All testing should be carried out in a standard atmosphere as specified in ISO 2419. 6 Procedure 6.1 Preparation of new wheels 6.1.1 Prepare new rubber abrasive wheels using the procedure in 6.1.2 to 6.1.8. Prepare new tungsten carbide abrasive wheels using the procedure in 6.1.9. 6.1.2 Fit the ru

32、bber abrasive wheels to the pivoted arms (4.3) ensuring that the wheels are mounted on the correct arm with the labels facing outwards. 6.1.3 Fit the additional weights (4.7) to give a loading of (10,0 0,1) N on each abrasive wheel. 6.1.4 Fit a piece of abrasive paper (4.10) to the test piece holder

33、. 6.1.5 Lower the abrasive wheels onto the surface of the abrasive paper, turn on the vacuum (4.9), switch on the machine and run for 20 cycles. 6.1.6 Replace the abrasive paper with a new piece of abrasive paper and repeat 6.1.5. DIN EN ISO 17076-1:2012-06 EN ISO 17076-1:2012 (E) 5 6.1.7 Examine th

34、e abrasive wheels. If the colour is not uniform, repeat the abrasive treatment with a fresh piece of abrasive paper. If the colour is still not uniform, discard the wheels. 6.1.8 Brush the wheels with a soft brush or use compressed air (4.11) to remove any debris. 6.1.9 Prepare new tungsten carbide

35、wheels by brushing with a stiff bristle brush (4.12) to remove any loose particles. 6.2 Abrasion of test pieces 6.2.1 Fit the prepared new abrasive wheels (6.1) or reconditioned abrasive wheels (6.3) to the pivoted arms (4.3) ensuring that the wheels are mounted on the correct arm with the labels fa

36、cing outwards. 6.2.2 Select the weights (4.7) to give a loading of either (2,5 0,1) N (no additional weight), (5,0 0,1) N or (10,0 0,1) N on each abrasive wheel. The weight used is recorded in the test report 7 c). NOTE Generally, an additional weight of (5,0 0,1) N is used, but the client will spec

37、ify the weight to be used. 6.2.3 Fit a prepared and mounted test piece (5.2) to the test piece holder. 6.2.4 Lower the abrasive wheels onto the test piece, turn on the vacuum (4.9), switch on the machine and run for the specified number of cycles. 6.2.5 Stop the machine and remove the test piece. Ex

38、amine the test piece and record any damage excluding any damage 2 mm from the edge of the tested area or in depressed areas caused by starting or stopping the machine. If required, use the grey scale (4.13) to determine the colour change of the tested area. 6.2.6 Replace the test piece and continue

39、the abrasion to the next specified number of cycles. Repeat 6.2.5. 6.2.7 Repeat 6.2.6 for any other number of cycles given in 6.2.4. 6.3 Reconditioning of abrasive wheels 6.3.1 Recondition rubber abrasive wheels using the procedure in 6.3.2 to 6.3.7. Recondition new tungsten carbide abrasive wheels

40、using the procedure in 6.3.8. 6.3.2 Recondition rubber abrasive wheels after each completed test. 6.3.3 Fit the additional weights (4.7) to give a loading of (10,0 0,1) N on each abrasive wheel. 6.3.4 Fit a piece of abrasive paper (4.10) to the test piece holder. 6.3.5 Lower the abrasive wheels onto

41、 the surface of the abrasive paper, switch on the vacuum (4.9), switch on the machine and run for 20 cycles. 6.3.6 Brush the wheels with a soft brush (4.11) to remove any debris. 6.3.7 Use abrasive paper for a maximum of 60 cycles (i.e. use for reconditioning three wheels and then replace). 6.3.8 Re

42、condition the tungsten carbide wheels by brushing with a stiff bristle brush (4.12) to remove any loose particles. Any burring of the edges of the wheels after reconditioning should be removed by rotating the wheel by hand against abrasive paper (4.10). DIN EN ISO 17076-1:2012-06 EN ISO 17076-1:2012

43、 (E) 6 7 Test report The test report shall include the following: a) reference to this part of ISO 17076; i.e. ISO 17076-1; b) the number of test cycles; c) the type of abrasive wheel and the loading used for the test; d) any observed damage; use photographs or, if required, return the test pieces t

44、o the client to illustrate damage; e) any colour change expressed in terms of a grey scale rating, if required; f) the standard atmosphere used for conditioning and testing as given in ISO 2419; g) any deviations from the method specified in this this part of ISO 17076; h) full details for identific

45、ation of the sample and any deviations from ISO 2418 with respect to sampling. DIN EN ISO 17076-1:2012-06 EN ISO 17076-1:2012 (E) 7 Annex A (informative) Sources of apparatus An example of a suitable product available commercially is given below. This information is given for the convenience of the

46、user of this International Standard and does not constitute an endorsement by ISO of this product. A suitable apparatus is manufactured by: Taber Industries, P.O. Box 164, North Tonawanda, NY 14120, USA. Abrasive wheels and papers may also be obtained from this source. Web-address: http:/ SATRA Technology Centre, Wyndham Way, Telford Way, Kettering, Northamptonshire, NN16 8SD, England. Web-address: http:/www.satra.co.uk DIN EN ISO 17076-1:2012-06 EN ISO 17076-1:2012 (E) 8