1、BRITISH STANDARD BS EN 1007-2:2002 Advanced technical ceramics Ceramic composites Methods of test for reinforcement Part 2: Determination of linear density The European Standard EN 1007-2:2002 has the status of a British Standard ICS 81.060.30 BS 1007-2:2002 This British Standard, having been prepar
2、ed under the direction of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 19 November 2002 BSI 19 November 2002 ISBN 0 580 40794 2 National foreword This British Standard is the official English lan
3、guage version of EN 1007-2:2002. It supersedes DD ENV 1007-2:1994 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee RPI/13, Advanced technical ceramics, which has the responsibility to: A list of organizations represented on this committee can be obtain
4、ed 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 Correspondence Index”, or by using the “Search” facility of
5、 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 itself confer immunity from legal obligations. aid
6、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 and promulgate them in the UK. Summary of pages This
7、 document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPIS
8、CHENORM EN10072 September2002 ICS81.060.30 SupersedesENV10072:1993 Englishversion AdvancedtechnicalceramicsCeramicscompositesMethods oftestforreinforcementPart2:Determinationoflineardensity CramiquestechniquesavancesCramiques compositesMthodesdessaipourrenforcementsPartie 2:Dterminationdelamasselini
9、que HochleistungskeramikKeramischeVerbunwerkstoffe VerfahrenzurPrfungderFaserverstrkungenTeil2: BestimmungderFeinheit ThisEuropeanStandardwasapprovedbyCENon6July2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofa
10、nationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undert
11、heresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spai
12、n,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN10072:2002EEN10072:2
13、002(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Principle4 4 Terms,definitionsandsymbols .4 5 Apparatusandaccessories . .5 6 Sampling.5 7 Testingatmosphere .5 8 Testspecimenpreparation . 5 9 Testprocedure .5 10 Calculationofresults . .5 11 Testreport 6 Bibliography 7EN10072:2002
14、(E) 3 Foreword Thisdocument(EN10072:2002)hasbeenpreparedbyTechnicalCommitteeCEN/TC184“Advancedtechnical ceramics“,thesecretariatofwhichisheldbyBSI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyMarch2003,andconflictingn
15、ationalstandardsshallbewithdrawnatthelatestby March2003. ThisdocumentsupersedesENV10072:1993. EN1007hassixparts: EN 10071 Part1:Determinationofsizecontent. EN 10072 Part2:Determinationoflineardensity. EN 10073 Part3:Determinationoffilamentdiameterandcrosssectionarea. prEN 10074 Part4:Determinationof
16、tensilepropertiesoffilamentatambienttemperature. prEN 10075 Part5:Determinationofdistributionoftensilestrengthandoftensilestraintofailureof filamentswithinamultifilamenttowatambienttemperature. ENV 10076 Part6:Determinationoftensilepropertiesoffilamentathightemperature. AccordingtotheCEN/CENELECInte
17、rnalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain, Sweden,SwitzerlandandtheUnitedKingdom.EN1007
18、2:2002(E) 4 1Scope ThispartoftheEuropeanStandardspecifiestheconditionsfordeterminationofthelineardensity(massperunit length)ofceramicmultifilamenttows,includingamongotherssiliconcarbide,siliconnitride,siliconcarbonitride, aluminosilicate,aluminaandsiliconoxidefibres. NOTE1 Whenthedeterminationofthel
19、ineardensityiscarriedoutonsizedmultifilamenttow,acorrectionshouldbemade bycalculationbasedonthesizecontent. NOTE2 CarbonfibresarenotcoveredbythisEuropeanStandard.ISO1889shouldbeusedforcarbonfibres 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpubl
20、ications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionof
21、the publicationreferredtoapplies(includingamendments). ENV13233:1998, AdvancedtechnicalceramicsCeramiccompositesNotationsandsymbols. ENISO291, PlasticsStandardatmospheresforconditioningandtesting(ISO291:1997) . ENISO1886, ReinforcementfibresSamplingplansapplicabletoreceivedbatches(ISO1886:1990) . 3P
22、rinciple Weighingofadefinedandaccuratelycutlengthofceramicmultifilamenttow.Determinationofthelineardensityin texonthebasisofthemassandlengthofthetestspecimen. 4 Terms,definitionsandsymbols ForthepurposesofthisEuropeanStandard,thefollowingterms,definitionsandthosegiveninENV13233:1998 apply. 4.1 linea
23、rdensity theratioofthemasstotheyarnlength,expressedintex(g/1000m) 4.2 elementaryunit thesmallestcommerciallyavailableunitofagivenproduct NOTE Forfibre,usuallythisisaspool.EN10072:2002(E) 5 5 Apparatusandaccessories 5.1 Cuttingdevice,forcuttingtestspecimenstotherequiredlength,toanaccuracyof1mm,underr
24、equired pretension. 5.2 Balance,withanaccuracyof0,1mg. 5.3 Cottonorplasticgloves. 5.4 Oven,capableofbeingmaintainedatatemperatureof(1055)C. 5.5 Desiccatorcontainingsuitabledryingagents. 5.6 Thermometer. 5.7 Hydrometer. 6Sampling SamplingofmultifilamenttowsshallbeconductedaccordingtoENISO1886todeterm
25、inethenumberof elementaryunitstosample. Atleast,threesamplesshallbetakenatrandomfromeachelementaryunit(spools). Twoseparatetestspecimensshallbetestedforeachsample. 7 Testingatmosphere Samplingandtestingshallbecarriedoutinastandardatmosphereof(232)Cand(505)%relativehumidity, inaccordancewithENISO291.
26、 8 Testspecimenpreparation Placetheceramicyarninthecuttingdeviceandcuttothedefinedmeasuredlengthandthenapplyaslight pretensiontostraightonthetow.Cutsufficientpiecesperindividualmeasurementuntilaminimumweighedmass of1gisachieved. 9 Testprocedure 9.1 Drythespecimensfor1,5hat(1055)C.Allowthespecimensto
27、coolinadesiccator. NOTE Thisdryingprocedurecanbeomittedfortypesofmultifilamenttowthatdonotabsorbmoisturefromthe atmosphere,byagreementbetweentheinterestedparties. 9.2 Weigheachspecimentothenearest1mg. 10 Calculationofresults Calculatethelineardensityusingthefollowingformula: 3 10 = L m tEN10072:2002
28、(E) 6 where t isthelineardensity,expressedin(tex); m isthemassoftestspecimen,expressedingram(g); L isthetotallengthofyarnconstitutingthetestspecimen,expressedinmetre(m). Thelineardensityofeachsampleiscalculatedonthebasisofthearithmeticmeanofallindividualmeasurements. Thelineardensityoftheelementaryu
29、nitiscalculatedonthebasisofthearithmeticmeanofthevaluesofall samples. 11 Testreport Thetestreportshallcontainatleastthefollowinginformation: a) thenameandaddressofthetestingestablishment; b) thedateofthetest,uniqueidentificationofreportandofeachpage,signatory,customernameandaddress; c) areferencetot
30、hisEuropeanStandard,i.e.“DeterminedinaccordancewithEN10072”; d) thedescriptionofthetestmaterial:typeoffibre,batchnumber,dateofreceipt; e) numberandlengthoftestspecimen; f) thelineardensityofeachtestspecimen; g) commentsaboutthetestandtestresults. h) astatementontemperatureandhumidity.EN10072:2002(E)
31、 7 Bibliography EN10071,AdvancedtechnicalceramicsCeramiccompositesMethodsoftestforreinforcement Part1:Determinationofthesizecontent. ISO1889, ReinforcementyarnsDeterminationoflineardensityBS EN 1007-2:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independ
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