1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 17076-1:2012Incorporating corrigenda April 2012 and July 2012BS EN ISO 17076-1:2012Leather Determination of abrasion resistancePart 1: Taber method (ISO 17076-1:2012)In
2、corporating corrigendum April 2012This British Standard is the UK implementation of EN ISO 17076-1:2012. Together with BS EN ISO 17076-2:2011, it supersedes BS EN 14327:2003, which is withdrawn. The British Standards Institution 2012. Published by BSI Standards Limited 2012ISBN 978 0 580 79686 9Amen
3、dments/corrigenda issued since publicationDate Text affected30 April 2012 Correction to supersession details31 July 2012 Correction to supersession details in National forewordBS EN ISO 17076-1:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 17076-1:201
4、2. It supersedes BS EN 14327:2004, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee TCI/69, Footwear, leather and coated fabrics.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not
5、purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012 ISBN 978 0 580 78848 2 ICS 59.140.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was pub
6、lished under the authority of the Standards Policy and Strategy Committee on 31 March 2012.Amendments issued since publicationDate Text affected30 April 2012 Correction to supersession detailsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17076-1 March 2012 ICS 59.140.30 Supersedes EN 1432
7、7:2004English Version Leather - Determination 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 Europea
8、n Standard was approved by CEN on 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 concer
9、ning 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 official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into
10、 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 Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Irelan
11、d, 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 Management Centre: Avenue Ma
12、rnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17076-1:2012: EBS EN ISO 17076-1:2012 EN ISO 17076-1:2012 (E) 3 Foreword This document (EN ISO 17076-1:2012) has been prepared by Technical Committee
13、 CEN/TC 289 “Leather“, 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, a
14、t the latest by September 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 identifyin
15、g any or all such patent 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, Denm
16、ark, 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 the United Kingdom. BS EN ISO 17076-1:2012 EN ISO 17076-1:2012 (E) 3 Fore
17、word This document (EN ISO 17076-1:2012) has been prepared by Technical Committee CEN/TC 289 “Leather“, 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 n
18、ational standard, either by publication of an identical text or by endorsement, at the latest by September 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
19、of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent 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 Eur
20、opean 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, Sweden, Switzerland, Tur
21、key and the United Kingdom. BS EN ISO 17076-1:2012ISO 17076-1:2012(E) IULTCS/IUP 48-1:2012(E) ISO 2012 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internatio
22、nal Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO
23、, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical com
24、mittees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the
25、possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 17076-1 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, in collab
26、oration with the Physical Test Commission of the International Union of Leather Technologists and Chemists Societies (IUP Commission, IULTCS), in accordance with the Agreement on technical co-operation between ISO and CEN (Vienna Agreement). IULTCS, originally formed in 1897, is a world-wide organiz
27、ation of professional leather societies to further the advancement of leather science and technology. IULTCS has three Commissions, which are responsible for establishing international methods for sampling and the testing of leather. ISO recognizes IULTCS as an international standardizing body for t
28、he preparation of test methods for leather. This first edition of ISO 17076-1 cancels and replaces ISO 17076:2006, which has been technical revised. It has a modified title and small changes were made in 4.6 and 6.2.2. ISO 17076 consists of the following parts, under the general title Leather Determ
29、ination of abrasion resistance: Part 1: Taber method Part 2: Martindale ball plate method BS EN ISO 17076-1:2012BS EN ISO 17076-1:2012INTERNATIONAL STANDARD ISO 17076-1:2012(E)IULTCS/IUP 48-1:2012(E) ISO 2012 All rights reserved 1Leather Determination of abrasion resistance Part 1: Taber method 1 Sc
30、ope This part of 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
31、 references, the 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
32、colour fastness Part 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 th
33、e periphery, the 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
34、.3 Pair of pivoted 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 tes
35、t piece. 4.5 Counter, indicating the number of revolutions of the platform (4.1). BS EN ISO 17076-1:2012ISO 17076-1:2012(E) IULTCS/IUP 48-1:2012(E) 2 ISO 2012 All rights reserved4.6 Abrasive wheels, tungsten carbide or rubber based, width (12,7 0,1) mm, maximum diameter 51,7 mm and minimum diameter
36、44,0 mm. Abrasive wheels are gradually abraded away during use. 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
37、type of wheel used reported in the test report 7 c). Other types 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
38、 or (10,0 0,1) N. 4.8 Specimen mounting sheet, such as a card 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.
39、11 Soft brush or compressed air. 4.12 Brush, stiff bristle. 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,
40、then only one sample need be taken from each hide or skin, provided 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 ce
41、ntral drive shaft. 5.3 Condition in accordance with ISO 2419. 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 ab
42、rasive wheels using the procedure in 6.1.9. 6.1.2 Fit the rubber 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 F
43、it a piece of abrasive paper (4.10) to the test piece holder. 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. BS EN ISO
44、 17076-1:2012ISO 17076-1:2012(E) IULTCS/IUP 48-1:2012(E) ISO 2012 All rights reserved 36.1.7 Examine the 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 w
45、ith a soft brush or use compressed air (4.11) to remove any debris. 6.1.9 Prepare new tungsten carbide 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.
46、3) to the pivoted arms (4.3) ensuring that the wheels are mounted on the correct arm with the labels facing 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
47、test report 7 c). NOTE Generally, an additional weight of (5,0 0,1) N is used, but the client will specify 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 m
48、achine and run for the specified number of cycles. 6.2.5 Stop the machine and remove the test piece. Examine 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 sca
49、le (4.13) to determine the colour change of the tested area. 6.2.6 Replace the test piece and continue 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 using the procedure in 6.3.8. 6.3.2 Recondition rubber abrasive wheels after each completed test.
