EN 13595-2-2002 en Protective clothing for professional motorcycle riders - Jackets trousers and one-piece or divided suits - Part 2 Test method for determination of impact abrasio.pdf

1、BRITISH STANDARD Protective clothing for professional motorcycle riders - Jackets, trousers and one-piece or divided suits - Part 2: Test method for determination of impact abrasion resistance The European Standard EN 13595-2:2002 has the status of a British Standard ICs 13.340.10 NO COPYING WITHOUT

2、 BSI PERMISSION MCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 13595-2:2002 British Standards BS EN 13595-2:2002 Amd. No. National foreword Date Comments This British Standard is the official English language version of The UKparticipation in its preparation was entrusted by Technical Committee PW3, Prot

3、ective clothing, to Subcommittee PW3/9, Clothing for protection of riders of motorcycles, which has the responsibility to: aid enquirers to understand the text; present to the responsible internationallEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK i

4、nterests informed; monitor related international and European developments and promulgate them in the UK. EN 13595-2:2002. - - - A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international

5、or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to in

6、clude all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. This British Standard, having been prepared under the direction of the Health and Environment Sector poli

7、cy and Summary of pages This document comprises a front cover, an inside front coves, the EN title page, pages 2 to 12, an inside back cover and a back cover. Strategy Committee, was ofthe Standar Part 2: Test method for determination of impact abrasion resistance; Part 3: Test method for determinat

8、ion of burst strength; Part 4: Test method for determination of impact cut resistance. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,

9、France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 3 EN 13595-2:2002 (E) Introduction The only protection a motorcyclist involved in a road traffic accident has against injury is the clothing he or sh

10、e is wearing at the time. Motorcyclists clothing is generally worn as an extension of normal clothing, providing protection against ambient conditions of wind, water and cold, but it should also provide some protection from injury in the event of an accident. It is intended not to hinder a rider fro

11、m controlling his machine. It should be of an acceptable appearance to the wearer. This European Standard is primarily concerned with the protection provided by clothing against injury in accidents. The hazards to which motorcyclists are exposed vary widely depending on the physical environment such

12、 as the nature of the road track or mountainside, the climatic environment, the traffic environment, the speed at which the motorcycle is being ridden and the skill of the rider. The number of combinations of possible hazards is very large. Total clothing performance against every identified hazard

13、could be required for each combination. This would be impracticably complicated. Therefore this standard contains the requirements for single characteristics of single items of clothing or simple combinations of garments. This standard is part of a series of standards specifying requirements for par

14、ticular items of clothing or particular hazards. Further Parts will be issued in due course. 1 Scope This European Standard specifies a test method for assessment of protection efficiency of professional motorcycle riders jackets, trousers and one-piece and divided suits which are intended to protec

15、t the wearer against mechanical injury on metalled road surfaces. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed

16、hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 388:l

17、 994, Protective gloves against mechanical risks. EN 13595-1 :2002, Protective clothing for professional motorcycle riders - Jackets, trousers and one-piece or divided suits - Pari 1: General Requirements. 3 Terms and definitions For the purposes of this European Standard, the following terms and de

18、finitions apply. 3.1 chamois leather leather made from the flesh split of sheepskin or lambskin, or from sheepskin or lambskin from which the grain has been removed by frizing, and tanned by processes involving oxidation of marine oils in the skin, using either solely such oils (full-oil chamois) or

19、 first an aldehyde and then such oils (combination chamois) 4 EN 13595-2:2002 (E) 3.2 professional rider a person who is employed to provide or contracts to perform for reward, the services requiring the riding of a motorcycle Examples are: a) the delivery of letters, packets or other small freight;

20、 b) the transport of passengers by motorcycle; c) emergency medical treatment; d) vehicle breakdown support. 4 Determination of impact abrasion resistance 4.1 Principle A test specimen is dropped from a set height onto an abrasive belt moving at a fixed speed over a rigid horizontal surface. The tim

21、e for the specimen to fully abrade is measured by detecting the difference in time between the breaking of two electrical wires, one passing over the outer and one over the inner surface of the specimen. 4.2 Apparatus 4.2.1 Apparatus conforming to the following characteristics: - Beltspeed 8 m/s - B

22、elt grit OP 60 - Abraded area 1963 mm2 - Static force on sample 49 N - Static pressure on sample 25 kPa - Drop height 50 mm A suitable apparatus consists of the following units illustrated in Figures 1, 2 and 3. Numbers in parentheses refer to those on the figures. a) A 750 W motor or larger driving

23、 a high mass roller (2) (1 O kg or more) with a diameter of more than 150 mm. b) A high mass roller (3) (10 kg or more) that is not driven. c) An OP 60 aluminium oxide abrasive grit belt (4) passing around the two rollers and tensioned. The rollers are cambered - i. e. having a larger diameter at th

24、eir mid points - to keep the belt centred. d) A horizontal robust steel plate (5) more than 20 mm thick over which the top run of the belt passes. e) A belt cleaning and dust removing system. The following is used: 1) A cylindrical brush (6) 200 mm in diameter, driven by a second motor. The polyprop

25、ylene bristles of the brush are 0,2 mm in diameter with a free length of 45 mm; there are approximately 200 O00 bristles in a brush 200 mm long which fits the belts used. The brush is run so that the bristles just touch the belt as it goes over the roller. The bristles have a tip speed three times t

26、hat of the belt and in the same direction. 5 EN 13595-2:2002 (E) 2) Two dust extraction points, one (7) before and one (8) after the brush. These consist of tubes directed across the belt and ground down so that a slit is formed facing the belt. The tubes are positioned very close to but not touchin

27、g the belt as it goes over the roller. The first removes coarse material and the second fine dust left by the brush. (The first tube car; be replaced by a high flow widebore extraction). A rigid pendulum (9) with the sample holder (12) mounted at its end. The pendulum is horizontal during abrasion a

28、nd may be raised to a desired height and released by a suitable mechanism (IO). The pendulum has a pivot (11) that permits movement only in a vertical plane. The pendulum position can be adjusted laterally so that 3 tracks can be used on each belt. The pendulum is of light construction with adjustab

29、le masses attached above the sample (1 3) to give a force of 49 N measured below the sample. The sample holder is constructed of metal with the dimensions in Figure2. It consists of a top plate (14), sample holder (15) and face plate 75 mm in diameter (16) which for convenience are connected by a sc

30、rew thread cut on the outside of the body. The face plate has a central flat face 40 mm in diameter (17), which is surrounded by a curved area 15 mm wide with a radius of curvature of 35 mm (18). The remainder of the face area is smoothly contoured into the vertical side of the face plate (19). The

31、face plate is covered with one layer of sheepskin chamois leather 0,8 mm to 1 ,O mm thick (20) attached with elastic adhesive. After ten or more impacts on a flat surface as in the test, but without a belt in place the flattened area is 45 mm to 47 mm in diameter and remains constant thereafter. The

32、 face plate with chamois is covered by two 160 mm disks of cotton denim fabric (21), which are stretched over the face plate and secured by hick rubber elastic bands around the body of the sample holder. The sample (12) is stretched evenly over the denim and held in place by a metal hose clip (22).

33、Samples are normally disks 160 mm in diameter. Thick composite samples with foam layers need to be wider. Two insulated copper wires Ca. 0,14 mm in diameter are held in place with adhesive tape on the side of the specimen holder. One is between the sample and the denim (23) and the other (24) is on

34、the face of the sample. The wires are placed so as to lie flat and at approximately 45 degrees to the direction of travel of the belt. The two wires are connected (25) to a suitable measuring apparatus so that the time between the breaking of the first wire and the breaking of the second can be meas

35、ured to an accuracy of 10 ms. A manual mechanism (26) for lifting the sample holder off the belt directly the second wire is broken. A complete enclosure (27) for the apparatus with dust extractor (28) to protect the operators from flying fragments, moving parts and dust. Common earthing of metal pa

36、rts in the apparatus, and metal dust extraction tubing, and earthed metal shielding of the dust collection systems if they are within close proximity. These measures reduce problems that could be encountered in false triggering of the recording apparatus by electrostatic discharges in the apparatus

37、and particularly in the dust extraction systems. 4.2.2 Abrasive belts of the following specification: polyester fabric backing; aluminium oxide grit of size OP 60; the grit is resin bonded, closely spaced and not “super-sized (that is without glue or resin over the grit filling the voids between the

38、 grit particles); the grit is electrostatically deposited onto the belt, not spread by gravity feed. NOTE and Chemicals PLC, Marsh Lane, London N17 OXA, UK., has been found satisfactory. This type of belting is available from many manufacturers. Product P60 Y AO Poly BX 139 from English Abrasives 4.

39、2.3 Reference material cotton canvas as specified in EN 388 with the following characteristics: - fabric warp and weft: cotton spun from open end fibres: - linear mass warp and weft: 161 Tex; 6 EN 13595-2:2002 (E) - twist warp: double twist S 280 t/m; single yarn Z 500 tm; - twist weft: same as warp

40、; - warp: 18 threads per 10 mm; - weft: 11 threads per 10 mm; - crimp warp: 29 %; - crimp weft: 4 %; - tensile strength in warp: 1 400 N; - tensile strength in weft: 1 O00 N; - mass per unit area: 540 g/m*; - thickness: 1.2 mm. NOTE Such a canvas k made by Collamtis, P. O. Box 3, 59930 La Chapelle d

41、Armantires, France, and is available after verification under reference LEM 6 from LInstitut Franais Textile-Habillement, Avenue Guy de Collongue, 69134 Ecully, CEDEX, France. A secondary reference fabric, as described in EN 388:1994, 6.2.4, of “15 oz” waxed cotton canvas can be used in routine test

42、ing. Its performance is calibrated against the reference canvas. 4.3 Test specimens For all zones test specimens at least 500 mm x 500 mm of each layer of material present in the garment that has an abrasion resistance requirement shall be taken. For testing of sheet materials, three test specimens

43、of at least 500 mm x 500 mm shall be provided, and the test procedure shall accurately replicate the use of the material(s) in finished garments. Samples shall represent every combination of materials in the panels of the garment in zones 2, 3 and 4 (see EN 13595-1 :2002, annex C). All layers of mat

44、erial present at the sampling point, excluding removable impact protectors, shall be taken. Specimens shall be not less than 160 mm diameter cut through all layers of the garment or from identical materials supplied with the garment. Not less than six specimens shall be prepared for test from each c

45、ombination of materials identified in the garment. Multiple layers are stapled together at one point at the edge of the specimen to maintain their relative orientations. Specimens are marked with the orientation of abrasion to be carried out. Stretch panels are cut into 160 mm diameter discs. Each s

46、pecimen is stretched in its most compliant direction with a force of 30 N, and adhesive paper tape is stuck across the outside face of the stretch panel. When the specimen is mounted on the holder the degree of stretch is arranged so that the paper tape is taut. Before abrasion testing the tape is r

47、emoved. Reference specimens consisting of two layers of cotton canvas 160 mm in diameter should be prepared. The warp direction should be marked. The two layers should have their warp fibres running in the same orientation. 4.4 Procedure 4.4.1 Test sequence Mount the cotton canvas reference specimen

48、s on the sample holder over two layers of the cotton denim. The warp fibres shall run in the direction of belt movement. One trigger wire is below the canvas and one above. The pendulum is supported by the released mechanism so that the face of the canvas is 50 mm f 5 mm above the abrasive grit belt

49、 when this is in contact with the supporting table. 7 EN 13595-2:2002 (E) Start the belt and cleaning mechanisms. The pendulum is released and the cotton canvas is abraded to perforation, as signalled by the cutting of the trigger wire between it and the denim. Raise the pendulum immediately and record the time between the cutting of the two trigger wires to the nearest 0,l s. If the track on the belt has not been previously used, abrade five specimens and discard the results. Abrade three further specimens. If the mean abrasion time of these is greater than 3,O s the belt is not suffi