《BS-EN-12230-2003.pdf》由会员分享，可在线阅读，更多相关《BS-EN-12230-2003.pdf（12页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 12230:2003 Surfaces for sports areas Determination of tensile properties of synthetic sports surfaces The European Standard EN 12230:2003 has the status of a British Standard ICS 97.220.10 ? Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:40:08 GMT+00:00 2006, Uncont
2、rolled Copy, (c) BSI BS EN 12230:2003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 15 August 2003 BSI 15 August 2003 ISBN 0 580 42468 5 National foreword This British Standard is the official English language version of EN 12230:2003. EN
3、12230:2003 is one of a package of standards being produced by CEN/TC 217. On publication of the entire package, BS 7044 will be withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/57, Surfaces for sports areas, which has the responsibility to: A list of organi
4、zations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspo
5、ndence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. 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 does not of
6、itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments a
7、nd promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No.
8、 DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:40:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12230 April 2003 ICS 97.220.10 English version Surfaces for sports areas - Determination of tensile properties of synthetic sp
9、orts surfaces Sols sportifs - Dtermination des caractristiques de traction des surfaces sportives synthtiques Sportbden - Bestimmung der Zugfestigkeitseigenschaften von Kunststoffflhen This European Standard was approved by CEN on 12 December 2002. CEN members are bound to comply with the CEN/CENELE
10、C 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 be obtained on application to the Management Centre or to any CEN m
11、ember. 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 the Management Centre has the same status as the official versions. CEN member
12、s are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMI
13、T EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12230:2003 E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 2
14、8 14:40:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12230:2003 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Term and definition4 4Principle4 5Apparatus .4 5.1Test machine4 5.2Thickness gauge5 5.3Dial gauge.5 6Test specimens5 6.1Dimensions.5 6.2Preparation and conditioning.6 6
15、.3Number of test specimens6 7Procedure .7 8Calculation and expression of results.7 8.1Relative elongation7 8.2Maximum tensile strength.7 8.3Tensile stress at rupture.8 9Test report 8 Bibliography9 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:40:08 GMT+00:00 2006, Uncontrolled Copy, (c)
16、BSI EN 12230:2003 (E) 3 Foreword This document (EN 12230:2003) has been prepared by Technical Committee CEN/TC 217 “Surfaces for sports areas“, 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
17、 or by endorsement, at the latest by October 2003, and conflicting national standards shall be withdrawn at the latest by October 2003. This standard is one of a series of methods of test for sports surfaces. It is based on ISO 1926 with modification of the procedure for preparation of the test spec
18、imens to take account of the form in which sports surfacing materials are normally produced. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Fi
19、nland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:40:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12230:2003 (E
20、) 4 1 Scope This European Standard specifies a method for the determination of the tensile properties of materials used as surfaces for sports areas. It is applicable to elastomeric materials which are used as the upper wearing layer of such areas, and to elastomeric materials used as underlayers in
21、 composite sports surfacing systems. It is applicable both to prefabricated sheet materials and to materials formed by casting of liquid systems cured in-situ. NOTE If the nature of the sports surface is such that a properly representative test piece cannot be prepared in the manner described in thi
22、s standard, then determination of tensile properties should not be attempted for quality control purposes, or as a predictor of performance in use. With such materials, it might be more appropriate to determine their compressive properties or other dynamic characteristics for these purposes. 2 Norma
23、tive 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 hereafter. For dated references, subsequent amendments to or revisions of
24、 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). ISO 291, Plastics Standard atmospheres for conditioning and testing. 3 Term and d
25、efinition For the purposes of this European Standard, the following term and definition applies. 3.1 peak to valley height geometric measure of the roughness of the top of the surfacing, being the magnitude of regularly or irregularly recurring vertical deviations of a surface from a reference surfa
26、ce, when the distances between these deviations is a low multiple of their depth 4 Principle A test specimen of given shape is subjected to a tensile stress transmitted to it by means of a suitable device and the resulting stress-strain curve is plotted, from which various parameters are subsequentl
27、y deduced. 5 Apparatus 5.1Test machine A test machine, such that: a) the test specimen can be held in the fixing grips of the test apparatus, these fixing grips meeting the following conditions: the test specimen can be held sufficiently tightly to avoid slipping; no localized pressure that could te
28、ar or rupture the ends is exerted on any part of the test specimen; b) the movable grip can be moved away from the fixed grip at a constant speed of (50 5) mm/min in a direction parallel to the longitudinal axis of the test piece, under no load; Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28
29、 14:40:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12230:2003 (E) 5 c) the force thus exerted on the test specimen can be read with a maximum error of 1 % and can be recorded; d) if an extensometer is used, it exerts a minimum force on the test specimen and elongation of the test specimen can b
30、e read to an accuracy of 0,1 mm. 5.2Thickness gauge Thickness gauge, accurate to 0,01 mm with a plunger with a flat measuring surface nominally 4 mm diameter. 5.3Dial gauge Dial gauge capable of reading to 0,1 mm with a plunger having a flat circular contact surface with a diameter of nominally 1,5
31、mm applied to the surface under a load of (0,9 0,1) N. 6 Test specimens 6.1 Dimensions 6.1.1 Profile Cut the test specimens in accordance with the shape and dimensions shown in Figure 1. If the distance between the parallel surfaces of the extensometer gauge length varies by more than 5 % (tolerance
32、 on parallelism), discard the test specimen and cut a further specimen. Dimensions in millimetres D L 150,0 0,5 55 R12 R12 40 25,0 0,1 Key D Distance between the grips, 100 mm L Original gauge length, (50,0 0,1) mm Figure 1 Dimensions and shape of a tensile test specimen Licensed Copy: sheffieldun s
33、heffieldun, na, Sat Oct 28 14:40:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12230:2003 (E) 6 6.1.2 Thickness So that the test specimens remains representative of the installed surfacing ensure that the thickness of the test specimen is the thickness of the installed surfacing, except in the fo
34、llowing cases, where further preparation is required: a) where the thickness of the installed sports surface and/or the sample provided for test is greater than 25 mm, reduce the thickness of the test specimen by machining or cutting to between 20 mm and 25 mm, taking care during this operation that
35、 the structure of the material is not altered and the test specimen remains as representative as possible of the installed sports surface; b) where the material carries a surface texture, emboss or granular finish, prepare the upper surface and underside of the test specimen as described in 6.2. NOT
36、E Preparation of the underside of the test specimen to remove irregularities is necessary, for example, where a once-liquid system has been removed from a textured or porous substrate. After preparation, measure the thickness of each test specimen using the thickness gauge (5.2) and a measurement fo
37、rce of between 0,8 N and 1,0 N. Measure the thickness of the test piece at a minimum of five positions along the extensometer gauge length and calculate the average thickness to the nearest 0,1 mm. If any one reading differs from the average thickness by more than 5 % of the average value, discard t
38、he test specimen. 6.2 Preparation and conditioning 6.2.1Remove any surface emboss or granular texture from the two parallel surfaces of the extensometer gauge length, to enable the thickness of the test specimen to be measured, by grinding the irregular surface with abrasive paper, grain 60, until a
39、 peak-to-valley height of (0,5 0,1) mm is achieved, or 50 % of the surface texture height has been abraded or until further rubbing no longer produces any change in the surface condition. 6.2.2Measure the peak-to-valley height by means of a dial gauge (5.3). Take the reference surface as a flat meta
40、l plate, pressed against the test surface under a force of 3 N. 6.2.3On the prepared area, make measurements at nine evenly distributed points and take the mean of the nine measurements as the peak-to-valley height of the surface being examined. 6.2.4Where necessary, mark the test specimens to indic
41、ate their orientation in relation to the direction of anisotropy. 6.2.5Condition the test specimens in accordance with one of the standard atmospheres given in ISO 291, for a period of not less than 24 h. 6.2.6Where the material of the test specimens has been formed by curing or chemical cross-linki
42、ng of liquid components, prepare the test specimen under conditions which represent as closely as possible the conditions under which the sports surface was, or is to be, installed. Do not test specimens from such materials until at least five days have elapsed from mixing the components. 6.3 Number
43、 of test specimens Carry out the test on at least six test specimens. In the case of prefabricated sheet materials, cut at least three test specimens from the longitudinal (machine) direction and at least three from the transverse direction. For materials formed in-situ, take at least three test spe
44、cimen from each of the two directions at 90. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:40:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12230:2003 (E) 7 7 Procedure Carry out the test under the same atmosphere as that used for conditioning the test specimens (see 6.2.5). Clamp a t
45、est specimen in the fixing grips. Mark the original gauge length on the test specimen (see Figure 1). Apply the force to be exerted on the test specimen so that it is uniformly distributed by means of the movable grip, at a rate of displacement of (50 5) mm/min until rupture occurs. Reject any test
46、specimen that breaks outside the extensometer gauge length and prepare and test a further specimen so that the number of valid results is not less than six. If an extensometer is not used, record the elongation corresponding to a given force, at suitable intervals. Plot the resulting stress-strain c
47、urve. Repeat the procedure for the remaining test specimens until six valid results are obtained. 8 Calculation and expression of results 8.1 Relative elongation Calculate the relative elongation, E, expressed as a percentage of the original gauge length, from the following equation: L E 100 L =(1)
48、where Lis the variation in length corresponding to a given force, measured by the variation in distance between gauge marks, expressed in millimetres (mm); Lis the original gauge length of the test piece, expressed in millimetres (mm). After determination on the stress-strain curve of the correspond
49、ing elongations, calculate c) the relative elongation, Em, for the maximum stress, if applicable, as a percentage of the original gauge length; d) the relative elongation, Er, at a rupture, as a percentage of the original gauge length. 8.2 Maximum tensile strength Calculate the maximum tensile stress, Om, where applicable, expressed in kilopascal, from the following equation: db F O = 3 10 m m (2) where Omis the maximum tensile stress, expressed in kilopascal (kPa); F