DIN EN ISO 5981-2008 Rubber- or plastics-coated fabrics - Determination of resistance to combined shear flexing and rubbing (ISO 5981 2007) English version of DIN EN ISO 5981 2008-.pdf

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1、January 2008DEUTSCHE NORM English price group 9No part of this standard 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 59.080.40!$K_L“1406041w

2、ww.din.deDDIN EN ISO 5981Rubber- or plastics-coated fabrics Determination of resistance to combined shear flexing and rubbing(ISO 5981:2007)English version of DIN EN ISO 5981:2008-01Mit Kautschuk oder Kunststoff beschichtete Textilien Bestimmung des Widerstandes gegen kombiniertes Knautschen und Rei

3、ben(ISO 5981:2007)Englische Fassung DIN EN ISO 5981:2008-01SupersedesDIN EN ISO 5981:1998-01www.beuth.deDocument comprises 13 pagesDIN EN ISO 5981:2008-01 2 National foreword This standard has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” in collaboration with Technical

4、 Committee CEN/TC 248 “Textiles and textile products (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Technical Committee NA 054-04-04 AA Kunststoff-Folien und kunststoffbeschichtete Flchen

5、gebilde (Kunstleder); allgemeine Eigenschaften. The DIN Standards corresponding to the International Standard referred to in clause 2 of the EN are as follows: ISO 2231 DIN EN ISO 2231 ISO 2286-1 DIN EN ISO 2286-1 ISO 4287 DIN EN ISO 4287 Amendments This standard differs from DIN EN ISO 5981:1998-01

6、 as follows: a) The specifications for the rubbing machine now also include dimensions for tests on thin materials (see subclause 4.2). b) The standard has been editorially revised. Previous editions DIN EN ISO 5981: 1998-01 National Annex NA (informative) Bibliography DIN EN ISO 2231, Rubber- or pl

7、astics-coated fabrics Standard atmospheres for conditioning and testing DIN EN ISO 2286-1, Rubber- or plastics-coated fabrics Determination of roll characteristics Part 1: Method for determination of the length, width and net mass DIN EN ISO 4287, Geometrical Product Specifications (GPS) Surface tex

8、ture: Profile method Terms, definitions and surface texture parameters EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 5981 October 2007 ICS 59.080.40 Supersedes EN ISO 5981:1997English Version Rubber- or plastics-coated fabrics - Determination of resistance to combined shear flexing and ru

9、bbing (ISO 5981:2007) Supports textiles revtus de caoutchouc ou de plastique - Dtermination de la rsistance au froissement d lapplication simultane dun couple et de frottement (ISO 5981:2007) Mit Kautschuk oder Kunststoff beschichtete Textilien - Bestimmung des Widerstandes gegen kombiniertes Knauts

10、chen und Reiben (ISO 5981:2007) This European Standard was approved by CEN on 21 September 2007. 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-

11、date lists and bibliographical references concerning such national standards may be obtained on application to the CEN 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

12、 the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hu

13、ngary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Cen

14、tre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 5981:2007: EContents Page 2 EN ISO 5981:2007 (E) Foreword. 3 1 Scope . 4 2 Normative references . 4 3 Principle 4 4 Apparatus 5 4.1 G

15、eneral . 5 4.2 Dimensions and characteristics . 5 4.3 Clamps . 5 4.4 Foot (optional) 7 5 Test pieces 8 5.1 Number 8 5.2 Shape and dimensions 8 5.3 Sampling 9 6 Time interval between manufacturing and testing . 9 7 Conditioning and testing atmosphere . 9 8 Procedure 10 8.1 Method A (with pressure foo

16、t) . 10 8.2 Method B (without pressure foot) . 10 9 Examination of test pieces and expression of results . 10 10 Test report . 11 DIN EN ISO 5981:2008-01 Foreword 3 EN ISO 5981:2007 (E) This document (EN ISO 5981:2007) has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products“ i

17、n collaboration with Technical Committee CEN/TC 248 “Textiles and textile products” the secretariat of which is held by BSI. 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 2008, and conflic

18、ting national standards shall be withdrawn at the latest by April 2008. This document supersedes EN ISO 5981:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulga

19、ria, 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 the United Kingdom. Endorsement notice The text

20、of ISO 5981:2007 has been approved by CEN as a EN ISO 5981:2007 without any modification. DIN EN ISO 5981:2008-01 WARNING Persons using this International Standard should be familiar with normal laboratory practice. This standard does not purport to address all of the safety problems, if any, associ

21、ated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. 1 Scope This International Standard specifies two methods of evaluating the resistance to combined shear flexing and rubbing

22、of rubber- or plastics-coated fabrics. Rubbing is either forced by application of a pressure foot (method A), or is caused by simple contact between the faces of the test pieces (method B). Method B (without application of the pressure foot) is preferred in all cases where the foot would damage the

23、test piece through an abrasive effect where this is not required, e.g. materials with sticky surfaces, light coatings such as polyurethanes on rough surfaces. The test may be carried out on products as delivered or after pre-treatments such as wetting or accelerated ageing. NOTE The results obtained

24、 using method A and method B cannot be compared as there is no correlation between the two methods. 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 late

25、st edition of the referenced document (including any amendments) applies. ISO 2231, Rubber- or plastics-coated fabrics Standard atmospheres for conditioning and testing ISO 2286-1, Rubber- or plastics-coated fabrics Determination of roll characteristics Part 1: Methods for determination of length, w

26、idth and net mass ISO 4287, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters 3 Principle A test piece is subjected to a succession of mild abrasive rubs applied to a continuously changing pattern of folds created by a rubbing

27、machine. The damage caused to the test piece is assessed visually. 4 EN ISO 5981:2007 (E) DIN EN ISO 5981:2008-01 4 Apparatus 4.1 General The apparatus shall consist of a rubbing machine (see Figures 1 and 2) having two parallel clamps giving counter-reciprocating motions defined by their length and

28、 width, and a foot (optional) pressing on the flexing part of the test piece. The apparatus shall be equipped with a counter and a device making it possible to bring the two clamps into juxtaposition manually. Most counters, because of their method of drive, record only one impulse for each back-and

29、-forth movement of the clamps, i.e. two rubs. In this case, the number indicated by the counter shall be multiplied by 2 in order to obtain the number of rubs (e.g. counter at 1 000, number of corresponding rubs 2 000). The components of the rubbing machine shall comply with the requirements specifi

30、ed in 4.2, 4.3 and 4.4. 4.2 Dimensions and characteristics The machine shall have the following dimensions and characteristics: a) distance between clamps: 12 mm 0,3 mm; b) distance, d, between the base and the upper surface of the lower clamp: 6 mm 0,1 mm, or, by agreement, 3 mm 0,1 mm (for lightwe

31、ight coated fabrics) or 0,0 mm 0,1 mm (for thin coated fabrics) if a shim is used (see 8.1.1); c) amplitude of movement, s: 40 mm 1 mm; d) frequency of movement: 2,4 cycles/s to 3,0 cycles/s (each crossing of the clamp axes being counted as 1 rub); e) width of the foot: 10 mm 0,2 mm, or 11,5 mm 0,2

32、mm when testing thin materials; f) length of the foot: 100 mm 1 mm; g) load applied through the foot: 5 0,1 N, or 10 N 0,2 N by addition of a supplementary load. All the parts or pieces of parts (except the gripping surfaces of the clamps) likely to come into contact with the test piece shall be pol

33、ished (surface roughness Ra = 0,4 m see ISO 4287). 4.3 Clamps The clamps shall be composed of two parts (see Figures 1 and 2) as follows: a) a lower part (A), equipped with a shoulder (P), for positioning the test piece, situated at a distance of ()00,227,5mm from the edge of the clamp (giving the t

34、est piece a loop length of 45 mm or 55 mm), and two reference marks (C) for centring the test piece along the common axis of symmetry of the clamps when placed face to face; b) an upper part (B) serving as a clamping plate. The edges of the clamps shall have a radius of curvature of 1 mm 0,1 mm, in

35、order to avoid cutting the test pieces. The clamping system, comprising the upper clamp on the lower clamp, shall be so designed that it is impossible for the test piece to slip during testing. 5 EN ISO 5981:2007 (E) DIN EN ISO 5981:2008-01 Dimensions in millimetres Key P shoulder of lower clamp C c

36、entring line for test piece aStroke, s. Figure 1 Apparatus: view from above 6 EN ISO 5981:2007 (E) DIN EN ISO 5981:2008-01 Dimensions in millimetres Key A lower clamp B upper clamp T foot d distance between base and upper surface of lower clamp see 4.2 b) b width of foot see 4.2 e) Figure 2 Apparatu

37、s: cross-section 4.4 Foot (optional) The foot (see Figure 3) shall be centred between the clamps so that it is at no time in contact with them. Its edges shall have a radius of curvature of 1 mm 0,1 mm. The centre of gravity (G) of the foot, together with its guide system, shall be in the plane whic

38、h is perpendicular to the clamping plane of the test piece and which passes through the common axis of symmetry of the two clamps when placed face to face. This plane shall also contain the centre of gravity of the foot alone. The guide system for the foot shall permit movement both vertically and a

39、round the centre of gravity, the centre of gravity remaining in the plane specified above. The load applied via the foot on the test piece shall be 5 N 0,1 N or, by agreement between the interested parties, 10 N 0,2 N by addition of a supplementary load. 7 EN ISO 5981:2007 (E) DIN EN ISO 5981:2008-0

40、1 Dimensions in millimetres Key 1 vertical displacement 2 displacement about the centre of gravity G S guide system for the foot T foot Figure 3 Pressure foot 5 Test pieces 5.1 Number For each series of tests, take six test pieces, three in the longitudinal direction and three in the transverse dire

41、ction. In the case of fabrics coated on both sides, twice the number of test pieces shall be taken so as to test each side. 5.2 Shape and dimensions 5.2.1 The test pieces shall be cut to the finished test dimensions (see Figure 4) and shall have the shape of a rectangle of the following dimensions:

42、length: 100 mm 0,25 mm; width: 50 mm 0,25 mm. Test pieces taken in the longitudinal direction shall have their length in the longitudinal direction; those taken in the transverse direction shall have their length in the transverse direction. 5.2.2 In the case of coated fabrics which have little elas

43、ticity, tearing may occur in the clamps. By agreement between the interested parties, the test can then be carried out with test pieces of length 110 mm 0,25 mm. 8 EN ISO 5981:2007 (E) DIN EN ISO 5981:2008-01 Dimensions in millimetres Key M location of the clamp S useful area tested X reference line

44、 w width of area tested (45 mm or 55 mm) l length of test piece (100 mm 0,25 mm or 110 mm 0,25 mm) Figure 4 Test piece 5.3 Sampling Test pieces shall be taken from the usable width of the roll as defined in ISO 2286-1, from a place not showing any apparent defect. 6 Time interval between manufacturi

45、ng and testing 6.1 For all test purposes, the minimum time between manufacturing and testing shall be 16 h. 6.2 When the test is for comparison of materials, it is strongly recommended that these periods be as close to each other as possible. 7 Conditioning and testing atmosphere The atmosphere for

46、conditioning and testing shall be one of the atmospheres A, B or C specified in ISO 2231. The test pieces shall be conditioned in accordance with one of the methods in ISO 2231. In the case of testing when wet, soaking shall be carried out in water for the agreed period at a temperature correspondin

47、g to the test temperature. Test pieces subjected to an accelerated ageing treatment shall be reconditioned before testing in the chosen atmosphere. 9 EN ISO 5981:2007 (E) DIN EN ISO 5981:2008-01 8 Procedure 8.1 Method A (with pressure foot) 8.1.1 When testing thin materials by this method, the test

48、piece may rise up between the pressure foot and the clamp, causing nipping and undue wear of the test piece. In order to prevent this, either use a pressure foot 11,5 mm 0,2 mm wide or use a shim see 4.2 b) with either the 10-mm-wide foot or the 11,5-mm-wide foot. Report the details of the arrangeme

49、nt used in the test report see Clause 10, item j). 8.1.2 Mark two reference lines on a test piece, parallel to the shorter sides and at a distance of ()00,227,5mm from the edges (see X in Figure 4). 8.1.3 Bring the clamps face to face by hand. Fix the test piece between the clamps so that the coated surface to be tested faces the top and the reference lines are flush with the clamps. 8.1.4 Bring the clamps opposite each other manually and apply the foot to the test piece. Check