BS EN 13745-2004 Surfaces for sports areas - Determination of specular reflectance《运动场表面 镜面反射系数的测定》.pdf

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1、BRITISH STANDARD BS EN 13745:2004 Surfaces for sports areas Determination of specular reflectance The European Standard EN 13745:2004 has the status of a British Standard ICS 59.080.60; 97.150; 97.220.10 BS EN 13745:2004 This British Standard was published under the authority of the Standards Policy

2、 and Strategy Committee on 26 February 2004 BSI 26 February 2004 ISBN 0 580 43484 2 National foreword This British Standard is the official English language version of EN 13745:2004. EN 13745:2004 is one of a series of standards being produced by CEN/TC 217. On publication of the entire series of Eu

3、ropean Standards, the BS 7044 series will be withdrawn.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 organizations represented on this committee can be obtained on request to its secretary.

4、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 Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or

5、 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. aid enquirers to understand the text

6、; 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 and promulgate them in the UK. Summary of pages This document comprises a front cove

7、r, an inside front cover, the EN title page, pages 2 to 7 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. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13745 February2004 I

8、CS59.080.60;97.150;97.220.10 Englishversion SurfacesforsportsareasDeterminationofspecular reflectance SolssportifsDterminationdelarflectancespculaire SportbdenBestimmungdergerichtetenReflexion ThisEuropeanStandardwasapprovedbyCENon10December2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalR

9、egulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialv

10、ersions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Fin

11、land,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ru

12、edeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN13745:2004:EEN13745:2004(E) 2 Contents page Foreword. 3 1 Scope . 4 2 Normativereferences . 4 3 Principle. 4 4A p p a r a t u s (seeFigure1) . 4 5 Testpiece . 5 6 Condit

13、ioning 5 7 Procedure 5 8 Expressionofresults . 6 9 Testreport . 6EN13745:2004(E) 3 Foreword Thisdocument(EN13745:2004)hasbeenpreparedbyTechnicalCommitteeCEN/TC217“Surfacesfor sportsarea”,thesecretariatofwhichisheldbyBSI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicatio

14、nofanidentical textorbyendorsement,atthelatestbyAugust2004,andconflictingnationalstandardsshallbewithdrawnat thelatestbyAugust2004. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Cyprus,Cze

15、chRepublic, Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania, Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,Switzerland andUnitedKingdom.EN13745:2004(E) 4 1Scope ThisEuropeanStandardspecifiesamethodforthedeterminationof

16、thespecularreflectanceofcertain surfacesforindoorsportsareas. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelisted hereafter.Fordatedreferences,subs

17、equentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies(includingamendments). ISO/CIE10526, CIEstandardilluminantsforcolorimetry. 3Principle Acollimatedincide

18、ntlightbeamisdirectedontoatestpiecetakenfromthesports surfacewhichismounted inanintegratingsphereandthetotallightreflectedisdetectedbyaphotocell. 4Apparatus (seeFigure1) 4.1 Integratingsphere ,ofanydiameter,havingamattwhiteinteriorsurfaceofsimilarreflectancetothatof thereflectancestandardandbaffles.

19、 4.2 Lightentranceportandsampleport ,bothcentredonthesamegreatcircleofthespherewithatleast 170ofarcbetweenthecentreofthelightentranceportandthecentreofthesampleport.Theaxisofthe irradiatingbeamshallpassthroughthecentresofthelightentranceandsampleports.Thesampleportshall notexceed4%oftheinternalrefle

20、ctingareaofthesphereandshallsubtendanangleof8atthecentreof thelightentranceport. 4.3 Reflectancestandard,designedaspartoftheinteriorwallofthesphereadjacenttothesampleport. Theangleofrotationshallnotexceed10. 4.4 Baffles,designedsothatlightcannotpassdirectlyfromtheentranceporttothephotocellor,inposit

21、ion 2(seeFigure1),fromtheilluminatedareaofthespherewalltothephotocell. 4.5 Mountingsfortestpiece ,suchthattheangleofincidenceofthelightbeamonthetestpieceis between80and85. NOTE Thisavoidslightwhichisspecularlyreflectedbeinglostthroughtheentranceport. 4.6 Lightsourceandfilter ,atungstenortungstenhalo

22、genlampappropriatelyfilteredtogivethecolour temperatureofoneoftheilluminantsA,CorD65inaccordancewithISO/CIE10526.Thelightbeamso providedshallbesubstantiallyunidirectional,toilluminatethetestpiece.Themaximumanglewhichanyrayof thisbeammakeswithitsaxisshallnotexceed3.Thebeamshallnotbevignettedateitherp

23、ortofthesphere. Thecrosssectionofthebeamatthesampleportshallbeapproximatelycircular,sharplydefinedand concentricwithintheport,leavinganannulusof1,30,1subtendedattheentranceport.EN13745:2004(E) 5 4.7 Photoelectriccell(s) ,positionedonthesphere9010fromthelightentranceport,tomeasurethe radiantfluxwithi

24、nthespherewithoutputmeasurementsproportionalwithin1%totheincidentfluxoverthe rangeofintensityused.Thereshallbenoreadingwhenthesphereisdark.Thephotoelectriccellshallhavea spectralresponseapproximatingtothe V(l )responseoftheeye. 4.8 Lighttrap ,suchthatwheninpositionatthesampleportandwhenthereisnotest

25、piecepresent,the lightbeamshallbetotallyabsorbedandthephotoelectriccell(4.7)outputshallbelessthan1%ofthefull scalereading. 5 Testpiece Cutthreetestpiecesfromthesurface,eachhavingadiameterequaltothatofthesampleport. 6Conditioning Conditionthetestpiecesforaminimumof3hatthetesttemperature.Unlessotherwi

26、sespecified,thetest temperatureshallbe23 C3 C. 7Procedure Ensuretheannulusdimensionsarecorrectwheneveraperturesorfocusarechanged. Withthesphereinposition1(seeFigure1)andthelightsourceswitchedoff,checkthatthephotoelectriccell readszero. Withthesphereinposition1(seeFigure1)andalighttrapinthesampleport

27、,switchonthelightsource. Measurethephotoelectriccelloutput 1 I . Withthesphereinposition2(seeFigure1),measurethephotoelectriccelloutput,whichistheincident intensity 2 I . Withthetestpieceinthesampleportandthesphereinposition1(seeFigure1),measurethephotoelectric celloutput 3 I . Repeattheprocedurefor

28、eachoftheothertwotestpieces.EN13745:2004(E) 6 8 Expressionofresults Calculatethereflectance Rofthetestpiecesinpercent(%)asfollows: 100 2 3 = I I R where 2 I isthephotoelectriccelloutputwiththesphereinposition2(seeFigure1); 3 I isthephotoelectriccelloutputwiththetestpieceinthesampleportandthespherein

29、position1(see Figure1). NOTE 1 I shouldbesufficientlysmallthatnocorrectionisrequired. Calculatethemeanofthethreereflectances. 9 Testreport Thetestreportshallincludethefollowinginformation: a) referencetothisEuropeanStandard,i.e.EN13745:2004; b) completeidentificationofthesurfacetestedincludingtype,m

30、anufacturersreferenceandprevious history; c) typeoflightsourceusedandthetypeoffilterused; d) typeofinstrumentused,includingthemakeandmodel; e) temperatureatwhichthetestwascarriedout; f)mean reflectance.EN13745:2004(E) 7 Key 1 Condenser 8 Lighttrap 2 Entrancewindow 9 Lightsource 3 Lens 10 Filter 4 Pi

31、votonwhichsphereisrotated 11 Aperture 5 Photoelectriccell 12 Integratingsphere 6 Tometer 13 Testpiece 7 Baffles Figure1HazemeterBS EN 13745:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards

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