DIN EN 725-2-2008 高级工业陶瓷.陶瓷粉末的试验方法.第2部分:钛酸钡中杂质的测定
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【英文标准名称】:Advancedtechnicalceramics-Methodsoftestforceramicpowders-Part2:Determinationofimpuritiesinbariumtitanate;EnglishversionofDINEN725-2:2008-01
【原文标准名称】:高级工业陶瓷.陶瓷粉末的试验方法.第2部分:钛酸钡中杂质的测定
【标准号】:DINEN725-2-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:高级材料;高级工业陶瓷;AES;原子发射光谱法;钡;钛酸钡;陶瓷;测定;含量测定;发射分光光度测定法;ICP;杂质;材料试验;粒状材料;粉末;生产;试验
【英文主题词】:Advancedmaterials;Advancedtechnicalceramics;AES;Atomicemissionspectrometry;Barium;Bariumtitanate;Ceramic;Ceramics;Determination;Determinationofcontent;Emissionspectrophotometry;ICP;Impurities;Materialstesting;Particulatematerials;Powder;Production;Testing
【摘要】:ThispartofEN725describesamethodforthedeterminationofimpuritiesinbariumtitanatepowdersusinginductivelycoupledplasmaopticalemissionspectroscopy(ICP-OES).Themethodisapplicableonlytostoichiometricbariumtitanate.Themaximumconcentrationsmeasuredforeachimpurityareasfollows:Sr4mg/g(4000ppm)Ca500μg/g(500ppm)K200μg/g(200ppm)Na,Mg,Al,Fe,Nb100μg/g(100ppm)Theminimumconcentrationordetectionlimitsarefrom1μg/gto5μg/g(1ppmto5ppm).
【中国标准分类号】:Q32
【国际标准分类号】:81_060_30
【页数】:10P.;A4
【正文语种】:英语
【英文标准名称】:
【原文标准名称】:塑料耐化学侵蚀性试验方法
【标准号】:JISK7114-1980
【标准状态】:作废
【国别】:日本
【发布日期】:1980-01-01
【实施或试行日期】:1980-01-01
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料;耐化学性试验
【英文主题词】:
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:StandardTestMethodforDensityofSoilinPlacebytheDrive-CylinderMethod
【原文标准名称】:传动缸法测定现场土壤密度的标准试验方法
【标准号】:ASTMD2937-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D18.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compactioncontrol;densitytesting;drivecylinder;drivecylindertest;fielddensity;in-placedensity;plugsampler;qualitycontrol;subsurfacesampler;surfacesampler;unitweight;Backfill--testing;Subsurfaceinvestigation--soil/rock;S
【摘要】:Thistestmethodcanbeusedtodeterminethein-placedensityofsoilswhichdonotcontainsignificantamountsofparticlescoarserthan4.75mm(3/16in.),andwhichcanbereadilyretainedinthedrivecylinder.Thistestmethodmayalsobeusedtodeterminethein-placedensityofcompactedsoilsusedinconstructionofstructuralfill,highwayembankments,orearthdams.Whenthein-placedensityistobeusedasabasisforacceptance,thedrivecylindervolumesmustbeaslargeaspracticalandnotlessthan850cm3(0.030ft3).Thistestmethodisnotrecommendedforuseinorganicorfriablesoils.Thistestmethodmaynotbeapplicableforsoft,highlyplastic,noncohesive,saturatedorothersoilswhichareeasilydeformed,compressduringsampling,orwhichmaynotberetainedinthedrivecylinder.Theuseofthistestmethodinsoilscontainingparticlescoarserthan4.75mm(3/16in.)mayresultindamagetothedrivecylinderequipment.Soilscontainingparticlescoarserthan4.75mm(3/16in.)maynotyieldvalidresultsifvoidsarecreatedalongthewallofcylinderduringdriving,orifparticlesaredislodgedfromthesampleendsduringtrimming.Thegeneralprinciplesofthistestmethodhavebeensuccessfullyusedtoobtainsamplesofsomefieldcompactedfine-grainedsoilshavingamaximumparticlesizeof4.75mm(3/16in.)forpurposesotherthandensitydeterminations,suchasthetestingforengineeringproperties.Note18212;Notwithstandingthestatementsonprecisionandbiascontainedinthisstandard:Theprecisionofthistestmethodisdependentonthecompetenceofthepersonnelperformingitandthesuitabilityoftheequipmentandfacilitiesused.AgencieswhichmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting.UsersofthismethodarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliabletesting.Reliabletestingdependsonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodcoversthedeterminationofin-placedensityofsoilbythedrive-cylindermethod.Thetestmethodinvolvesobtainingarelativelyintactsoilsamplebydrivingathin-walledcylinderandthesubsequentactivitiesforthedeterminationofin-placedensity.Whensamplingorin-placedensityisrequiredatdepth,TestMethodD1587shouldbeused.1.2Thistestmethodisnotappropriateforsamplingorganicsoilswhichcancompressuponsampling,veryhardnaturalsoilsandheavilycompactedsoilswhichcannotbeeasilypenetratedbythedrivesampler,soilsoflowplasticitywhichwillnotbereadilyretainedinthecylinder,orsoilswhichcontainappreciableamountsofgravel(particlescoarserthan4.75mm(3/16in.)).Thepresenceofparticlescoarserthan4.75mm(3/16in.)mayintroducesignificanterrorsindensitymeasurementsbycausingvoidsalongthewallofthecylinderduringdriving,andwhencoarsematerialshavetobedislodgedbythetrimmingofthesampleobtainedbythecylinder.1.3Thistestmethodislimitedtotheproceduresnecessaryforobtainingspecimenssuitablefordeterminingthein-placedensi......
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:8P.;A4
【正文语种】:英语