1、BRITISH STANDARDBS EN ISO 5981:2007Rubber- or plastics-coated fabrics Determination of resistance to combined shear flexing and rubbingThe European Standard EN ISO 5981:2007 has the status of a British StandardICS 59.080.40g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48
2、g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 5981:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2007 BSI 2007ISBN 978 0 580 57047 6Natio
3、nal forewordThis British Standard is the UK implementation of EN ISO 5981:2007. It supersedes BS EN ISO 5981:1997 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee TCI/69, Footwear, leather and coated fabrics.A list of organizations represented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 c
4、ommittee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since pub
5、licationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 5981October 2007ICS 59.080.40 Supersedes EN ISO 5981:1997 English VersionRubber- or plastics-coated fabrics - Determination of resistanceto combined shear flexing and rubbing (ISO 5981:2007)Supports textiles revtus d
6、e caoutchouc ou de plastique -Dtermination de la rsistance au froissement d lapplication simultane dun couple et de frottement (ISO5981:2007)Mit Kautschuk oder Kunststoff beschichtete Textilien -Bestimmung des Widerstandes gegen kombiniertesKnautschen und Reiben (ISO 5981:2007)This European Standard
7、 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 EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning suc
8、h nationalstandards 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 translationunder the responsibility of a CEN member into its own language a
9、nd notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg
10、, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of ex
11、ploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 5981:2007: EForeword This document (EN ISO 5981:2007) has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products“ in collaboration with Technical Committee CEN/TC 248 “Textiles and
12、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 conflicting national standards shall be withdrawn at the latest by April
13、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, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Ge
14、rmany, 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 of ISO 5981:2007 has been approved by CEN as a EN ISO 5981:2007 wi
15、thout any modification. EN ISO 5981:2007Reference numberISO 5981:2007(E)INTERNATIONAL STANDARD ISO5981Third edition2007-10-15Rubber- or plastics-coated fabrics Determination of resistance to combined shear flexing and rubbing Supports textiles revtus de caoutchouc ou de plastique Dtermination de la
16、rsistance au froissement d lapplication simultane dun couple et de frottement EN ISO 5981:2007ii iiiContents Page Foreword iv 1 Scope . 1 2 Normative references . 1 3 Principle. 1 4 Apparatus 2 4.1 General. 2 4.2 Dimensions and characteristics 2 4.3 Clamps . 2 4.4 Foot (optional) 4 5 Test pieces 5 5
17、.1 Number 5 5.2 Shape and dimensions. 5 5.3 Sampling 6 6 Time interval between manufacturing and testing 6 7 Conditioning and testing atmosphere 6 8 Procedure 7 8.1 Method A (with pressure foot). 7 8.2 Method B (without pressure foot) . 7 9 Examination of test pieces and expression of results 7 10 T
18、est report . 8 EN ISO 5981:2007iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body int
19、erested 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, also take part in the work. ISO collaborates closely with the International Electrotechnic
20、al 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 committees is to prepare International Standards. Draft International Standards adopted by the
21、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 possibility that some of the elements of this document may be the subject of patent rights.
22、ISO shall not be held responsible for identifying any or all such patent rights. ISO 5981 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 4, Products (other than hoses). This third edition cancels and replaces the second edition (ISO 5981:1997), which has b
23、een technically revised. EN ISO 5981:20071Rubber- or plastics-coated fabrics Determination of resistance to combined shear flexing and rubbing WARNING Persons using this International Standard should be familiar with normal laboratory practice. This standard does not purport to address all of the sa
24、fety problems, if any, associated 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 combin
25、ed shear flexing and rubbing 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 whe
26、re the foot would damage the 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 agei
27、ng. NOTE The results obtained 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
28、 undated references, the latest 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 f
29、or determination of length, width 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 o
30、f folds created by a rubbing machine. The damage caused to the test piece is assessed visually. EN ISO 5981:20072 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
31、 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
32、-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
33、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
34、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
35、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
36、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
37、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
38、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. EN ISO 5981:20073Dimensions in millimetres Key P shoulder of lower clamp C centring line for test piece aS
39、troke, s. Figure 1 Apparatus: view from above EN ISO 5981:20074 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 Apparatus: cross-section 4.4 Foot (optional) The foot (see Figure 3
40、) 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 which is perpendicular to the clamping plane of the test piece
41、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 around the centre of gravity, the centre of gravity remainin
42、g 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. EN ISO 5981:20075Dimensions in millimetres Key 1 vertical displacement 2 displacement about the centre o
43、f 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 direction. In the case of fabrics coated on both sides, twice the number of test pieces shall
44、 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: length: 100 mm 0,25 mm; width: 50 mm 0,25 mm. Test pieces taken in the longitudinal direc
45、tion 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 elasticity, tearing may occur in the clamps. By agreement between the interested parties, the
46、 test can then be carried out with test pieces of length 110 mm 0,25 mm. EN ISO 5981:20076 Dimensions in millimetres Key M location of the clamp S useful area tested X reference line 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
47、 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 manufacturing and testing 6.1 For all test purposes, the minimum time between manufacturing and testing shall be 16 h. 6.2 When t
48、he 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 conditioning and testing shall be one of the atmospheres A, B or C specified in ISO 2231. The test pieces shall be con
49、ditioned 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 corresponding to the test temperature. Test pieces subjected to an accelerated ageing treatment shall be reconditioned before testing in the chosen atmosphere. EN ISO 5981:200778 Procedure 8.1 Method A (with pressure foot) 8.1.1 When testing thin materials by this method, the test piece may rise up between the pressure foot
