DIN 51619-1985 石油产品的试验.液化石油气成分的测定.气体色谱分析法

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【英文标准名称】:StandardSpecificationforConcentric-Lay-StrandedCopperConductors,Hard,Medium-Hard,orSoft
【原文标准名称】:硬的,中等硬的或软的同心绞捻铜导线标准规格
【标准号】:ASTMB8-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:B01.04
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:concentric-lay-strandedcopperconductors;concentric-lay-strandedhard;copperconductors;copperconductorsforelectricalpurposes;medium-hard;orsoftcopperconductors;Concentric-lay-strandedcopperelectricalconductors;Leadalloy-coatedcopper
【摘要】:1.1Thisspecificationcoversbareconcentric-lay-strandedconductorsmadefromroundcopperwires,eitheruncoatedorcoatedwithtin,lead,orleadalloyforgeneraluseforelectricalpurposes.Theseconductorsshallbeconstructedwithacentralcoresurroundedbyoneormorelayersofhelicallylaidwires.Note18212;Thisspecificationalsopermitsconductorsforuseascoveredorinsulatedelectricalconductors.Note28212;Sealedconductors,thatareintendedtopreventlongitudinalwaterpropagationandarefurthercovered/insulated,arealsopermittedwithintheguidelinesofthisspecification.1.2Forthepurposesofthisspecification,conductorsareclassifiedasfollows(ExplanatoryNote1andNote2):1.2.1ClassAA8212;Forbareconductorsusuallyusedinoverheadlines.1.2.2ClassA8212;Forconductorstobecoveredwithweather-resistant(weather-proof),slow-burningmaterials,andforbareconductorswheregreaterflexibilitythanisaffordedbyClassAAisrequired.1.2.3ClassB8212;Forconductorstobeinsulatedwithvariousmaterialssuchasrubber,paper,varnishedcloth,andsoforth,andfortheconductorsindicatedunderClassAwheregreaterflexibilityisrequired.1.2.4ClassCandClassD8212;ForconductorswheregreaterflexibilityisrequiredthanisprovidedbyClassBconductors.1.3TheSIvaluesfordensityareregardedasthestandard.Forallotherproperties,theinch-poundvaluesaretoberegardedasstandardandtheSIunitsmaybeapproximate.
【中国标准分类号】:
【国际标准分类号】:29_060_20
【页数】:7P.;A4
【正文语种】:


【英文标准名称】:StandardTestMethodforSieveAnalysisofPetroleumCoke
【原文标准名称】:焦油筛析的标准试验方法
【标准号】:ASTMD5709-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D02.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:calcinedpetroleumcoke;greenpetroleumcoke;particlesizeanalysis;screening;sieve;Calcinedpetroleumcoke;Greenpetroleumcoke;Particleanalysis--petroleumproducts;Petroleumcoke;Sieveanalysis--petroleumproducts
【摘要】:Thetestmethodconcernsthesievingofcokeintodesignatedsizefractionsforthepurposeofcharacterizingthematerialastoitsparticlesizedistribution.Itrequirestheuseofstandardsieves,standardsamplingmethods,standardsamplepreparationmethods,andaminimuminitialsamplemassbasedonlottopsize.Suggestionsaregivenforindustrytypicalsievestacksforbothgreenandcalcinedpetroleumcoke.Particlesizedistributionissignificantinthatmanyphysicalcharacteristicsofacokearerelatedtosuchadistributionincludingbulkdensityandsurfacearea.Nuisancecharacteristics,suchasexcessivefinesinalot,canalsobecontrolled.Resultsfromthistestmethodareusefulindeterminingwhetheracokelotmeetspurchasespecifications,forclassificationpurposes,andforqualitycontrol.Theresultsofthistestmethodcanalsobeusedtopredicttheperformanceofaparticularlotofcokeinaprocess.1.1Thistestmethoddetailsaprocedureforperformingparticlesizedistributionanalysisbydrysievetestingongreenpetroleumcokewithatopsizeofnomorethan75mmandcalcinedpetroleumcokewithatopsizeofnomorethan25mm.Sizefractionsgodowntoandinclude4.75mmforgreenpetroleumcokeand75x03BC;mforcalcinedpetroleumcoke.Note18212;Toconvertunits,seeTable1onnominaldimensionsinSpecificationE11.Forexample,75mmisapproximatelyequivalenttoanominalsieveopeningof3in.and25mmtoanominalsieveopeningof1in.Likewise,4.75mmcanbeconvertedtoapproximately0.187in.and75micronsto0.0029in.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.2.1ThesievesizeisreportedasU.S.A.standardtestseriesinanyunitslistedinTable1onnominaldimensionsofSpecificationE11,ortheircommercialsizeequivalents.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E44
【国际标准分类号】:75_160_10
【页数】:4P.;A4
【正文语种】:英语