1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58unbound mineral surfaces for outdoor sports areas The European Standard EN 14956:2005 has the statu
2、s of a British StandardICS 97.220.10Surfaces for sports areas Determination of water content of BRITISH STANDARDBS EN 14956:2005BS EN 14956:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 26 November 2005 BSI 26 November 2005ISBN 0 580 47
3、315 5The 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 Catalogue or of British
4、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 comprises a front co
5、ver, an inside front cover, the EN title page, pages 2 to 5 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 represented on this committee can be obtained
6、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 the official English language version
7、of EN 14956:2005. 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 any EUROPEAN STANDARDNORME EUROPENNEEUR
8、OPISCHE NORMEN 14956November 2005ICS 97.220.10English VersionSurfaces for sports areas - Determination of water content ofunbound mineral surfaces for outdoor sports areasSols sportifs - Dtermination de la teneur en eau des solsminraux non lis pour les terrains de sport de plein airSportbden - Besti
9、mmung des Wassergehalts vonungebundenen mineralischen Belgen fr Sportbden frden AuenbereichThis European Standard was approved by CEN on 12 September 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the sta
10、tus 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 CEN member.This European Standard exists in three official versions (English, French, German). A ve
11、rsion 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 members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estoni
12、a, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE
13、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 14956:2005: EEN 14956:2005 (E) 2 Contents Page Foreword 3 1 Scope .4 2 Principle.4 3 Apparatus 4 4 Test specimen .4
14、 5 Test conditions .4 6 Procedure 4 7 Expression of results5 8 Test report .5 EN 14956:2005 (E) 3 Foreword This European Standard (EN 14956:2005) 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
15、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. According to the CEN/CENELEC Internal Regulations, the national standards organizations o
16、f 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Sp
17、ain, Sweden, Switzerland and United Kingdom. EN 14956:2005 (E) 4 1 Scope This European Standard specifies a method for the determination of the water content of unbound mineral surfaces used for outdoor sports areas. 2 Principle The mass of a specimen of an unbound mineral is determined under the pr
18、evailing conditions. After drying, the mass of the same specimen is determined again. The difference in mass is a measure of the water content. 3 Apparatus 3.1 Conventional oven, capable of being set at (105 5) C. 3.2 Balance, capable of measuring to within 0,1 g. 3.3 Desiccator. 4 Test specimen Pre
19、pare a specimen having a mass of at least 1 000 g. 5 Test conditions The test shall be carried out at a temperature of (23 2) C and a relative humidity of (50 10) %. 6 Procedure 6.1 Determine the mass of the test specimen (MA). 6.2 Dry the specimen for at least 24 h in the oven (3.1) at (105 5) C. R
20、emove the specimen from the oven and allow the specimen to cool down in the desiccator (3.3) for at least 4 h. Re-weigh the specimen (MB). 6.3 Place the specimen in the oven for at least 4 h. After a second cooling down period in the desiccator for at least 4 h, weigh the specimen again (MC). 6.4 Re
21、peat 6.3 until two successive masses are within 0,05 g. Record this mass, MD, as the mass of the dry specimen. EN 14956:2005 (E) 5 7 Expression of results Calculate the water content of the specimen, expressed as a percentage, using the following formula: 100 DDAMMMwhere MAis the mass of the specime
22、n, expressed in grams; MDis the mass of the dry specimen, expressed in grams. 8 Test report The test report shall include the following information: a) reference to this European Standard, i.e. EN 14956:2005; b) description of the nature of the specimen (MA, MB, MC, MD); c) water content of the spec
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