1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58particle shape of unbound mineral surfaces for outdoor sports areasThe European Standard EN 14955:2
2、005 has the status of a British StandardICS 97.220.10Surfaces for sports areas Determination of composition and BRITISH STANDARDBS EN 14955:2005BS EN 14955:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 November 2005 BSI 28 November 2
3、005ISBN 0 580 47314 7The 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 Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogu
4、e 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 itself confer immunity from legal obligations.Summary of pagesThis document comp
5、rises a front cover, an inside front cover, the EN title page, pages 2 to 8, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represen
6、ted on this committee can be obtained on request to its secretary.Cross-referencesenquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard is
7、the official English language version of EN 14955:2005.The UK participation in its preparation was entrusted to Technical Committee PRI/57, Surfaces for sports areas, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee an
8、y EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14955November 2005ICS 97.220.10English VersionSurfaces for sports areas - Determination of composition andparticle shape of unbound mineral surfaces for outdoor sportsareasSols sportifs - Dtermination de la composition et de laforme des particules
9、des sols minraux non lis pour lesterrains de sport de plein airSportbden - Bestimmung der Zusammensetzung und derKornform von ungebundenen mineralischen Belgen frSportbden fr den AuenbereichThis European Standard was approved by CEN on 12 September 2005.CEN members are bound to comply with the CEN/C
10、ENELEC 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 such nationalstandards may be obtained on application to the Central Secretariat or to any
11、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 and notified to the Central Secretariat has the same status as the officialversions.CEN mem
12、bers are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and Unit
13、ed Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14955:2005: EEN
14、14955:2005 (E) 2 Contents Page Foreword 3 1 Scope .4 2 Principle.4 3 Apparatus 4 4 Sampling4 5 Conditioning5 6 Procedure 5 7 Expression of results5 8 Test report .6 EN 14955:2005 (E) 3 Foreword This European Standard (EN 14955:2005) has been prepared by Technical Committee CEN/TC 217 “Surfaces for s
15、ports 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 or by endorsement, at the latest by May 2006, and conflicting national standards shall be withdrawn at the latest by May 2006. Ac
16、cording to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lith
17、uania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14955:2005 (E) 4 1 Scope This European Standard specifies a method for determining the composition and particle shape of unbound minerals for outdoor sports surfaces
18、. 2 Principle The grains of unbound minerals are separated manually according to shape. The composition of each different shape is expressed as a percentage by mass. Each shape is described in terms of texture, structure and colour using the classification chart (see Figures 1 and 2). 3 Apparatus 3.
19、1 Classification chart. 3.2 Trowel or cutting implement. 3.3 Pointed separator. 3.4 Analytical balance or scale. 3.5 Smooth surface, ideally glass or an illuminated frame. 3.6 Oven, capable of being maintained at (105 5) C. 3.7 Optical microscope, having a minimum enlargement power of 20 x. 4 Sampli
20、ng 4.1 From a stock pile If taking a sample from a stock pile, take the sample as near to the middle of the pile as possible. 4.2 From a bag If taking a sample from a bag, turn the bag upside down and shake it to intermix the particles. Having opened the bag, take the sample from as near to the cent
21、re of the bag as possible. 4.3 From a field location If taking a sample in the field, cut vertically through the strata concerned taking particles from the top, middle and bottom of the profile. EN 14955:2005 (E) 5 5 Conditioning Dry the sample in an oven at a temperature of (105 5) C for 24 h. Afte
22、r allowing the sample to cool down to room temperature, mix the sample so that all the particles are thoroughly integrated. 6 Procedure 6.1 For samples consisting of particles of greatest dimension 1 mm, follow the procedure described in 6.2. For samples consisting of particles of greatest dimension
23、 1 mm, follow the procedure described in 6.3. 6.2 Take 10 g of a representative specimen removed from the centre of the sample. Lay the specimen out on a smooth surface and separate all the particles into different piles according to their particle shape in accordance with Figure 1. If the specimen
24、contains particles of greatest dimension 3 mm, but 6 mm, increase the mass of the specimen to 15 g. Observe and record the texture, structure and colour for the pile of each shape of particle. Weigh each of the piles and calculate the mass composition for each particle shape as a percentage of the w
25、hole. Table 1 Attribute classification Attribute Description Shape Round, flat, irregular, angular Texture Rough, polishedStructure Open, denseColour 6.3 Reduce the specimen to a volume small enough to be put under a microscope and place it onto a glass slide under the microscope. Identify the shape
26、, texture and structure by observations through the microscope and record the observations. Repeat the observations on five more samples and report the modal shape, texture and structure over all six samples. 7 Expression of results Express the results as the shape, texture, structure and colour of
27、the specimens (see Table 1). For specimens taken from samples consisting of particles of greatest dimension 1 mm or larger, report also the percentage composition by mass. EN 14955:2005 (E) 6 8 Test report The test report shall include the following: a) reference to this European Standard, i.e. EN 1
28、4955:2005; b) type of material under test; c) nature of the specimen; d) source of the sample; e) overall thickness of the area from which the sample was taken; f) results, presented in accordance with the chart in Figure 2. EN 14955:2005 (E) 7 Assessment of particles in unbound mineral surfaces Att
29、ribute Test Report Result Rounded Angular Irregular Flat Shape % %Rough Polished Texture Open Dense Structure Colour Description Rounded No flat faces, rounded corners, almost cylindrical. Angular Strongly developed faces with sharp corners. Cubical. Irregular Has both rounded and angular faces. Fla
30、t Majority flat faced, elongated, thin, greater in length than height. Polished Smooth. Rough Pitted. Figure 1 Chart for test report results EN 14955:2005 (E) 8 A B C 1 High sphericity (Round/square) 2 Medium sphericity (Cylindrical) 3 Low sphericity (Flat) Angular Irregular Round Description Angula
31、r developed faces with sharp corners. Sharply defined, large re-entrants with numerous small re-entrants. Irregular poorly developed flat faces with corners well rounded. Few small and gently rounded re-entrants subdued and large re-entrants weakly defined. Round no flat faces, corners or re-entrant
32、s discernible and a uniform convex outline. Figure 2 Classification chart for particle shape blankBS EN BSI389 Chiswick High RoadLondonW4 4AL14955:2005BSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standar
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