BS ISO 12743-2007 铜、铅、锌和镍精矿.金属和湿度含量测定的取样程序

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【英文标准名称】:Copper,lead,zincandnickelconcentrates-Samplingproceduresfordeterminationofmetalandmoisturecontent
【原文标准名称】:铜、铅、锌和镍精矿.金属和湿度含量测定的取样程序
【标准号】:BSISO12743-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-04-30
【实施或试行日期】:2007-04-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:铜无机化合物;铜矿石;硫酸铜;定义;测定;铅化合物;铅无机化合物;铅矿石;金属含量;金属矿;含水量;抽样方法;硫化物;锌无机化合物;锌矿石;锌硫化物
【英文主题词】:Copperinorganiccompounds;Copperores;Coppersulphates;Definitions;Determination;Leadcompounds;Leadinorganiccompounds;Leadores;Metalcontent;Metalliferousminerals;Moisturecontents;Samplingmethods;Sulphides;Zincinorganiccompounds;Zincores;Zincsulfide
【摘要】:ThisInternationalStandardsetsoutthebasicmethodsforsamplingcopper,lead,zincandnickelconcentratesfrommovingstreamsandstationarylots,includingstopped-beltsampling,toprovidesamplesforchemicalanalysis,physicaltestinganddeterminationofmoisturecontent,inaccordancewiththerelevantInternationalStandards.Wheretheconcentratesaresusceptibletosignificantoxidationordecomposition,itisnecessarytouseacommonsampleformoisturedeterminationandchemicalanalysistoeliminatebias(seeISO10251).Insuchcases,thecommonsamplemustbesufficientlyrepresentative,i.e.unbiasedandsufficientlyprecise,forchemicalanalysisanddeterminationofmoisturecontent.Anylargeagglomerates(>10mm)presentintheprimarysampleshouldbecrushedpriortofurthersampleprocessing.SamplingofconcentratesinslurryformisspecificallyexcludedfromthisInternationalStandard.Stopped-beltsamplingisthereferencemethodforcollectingconcentratesamplesagainstwhichmechanicalandmanual-samplingproceduresmaybecompared.Samplingfrommovingstreamsisthepreferredmethod.Bothfalling-streamandcross-beltsamplersaredescribed.Samplingfromstationarylotsisusedonlywheresamplingfrommovingstreamsisnotpossible.TheproceduresdescribedinthisInternationalStandard,forsamplingfromstationarylots,onlyminimizesomeofthesystematicsamplingerrors.
【中国标准分类号】:D42
【国际标准分类号】:73_060_99
【页数】:86P;A4
【正文语种】:英语


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【英文标准名称】:Aerospaceseries-Elementsofelectricalandopticalconnection;Testmethods-Part6303:Opticalelements;Cold/lowpressureanddampheat;GermanandEnglishversionEN2591-6303:2001
【原文标准名称】:航空航天系列.光电连接元件.试验方法.第6303部分:光学元件.冷/低压和湿热试验
【标准号】:DINEN2591-6303-2003
【标准状态】:现行
【国别】:德国
【发布日期】:2003-05
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thedocumentspecifiesamethodofcheckingthelongtermstabilityofopticalconnectionelements(incluingpermanentconnections)andfibreopticcouplers.ItshallbeusedtogetherwithEN2591.
【中国标准分类号】:V25
【国际标准分类号】:49_060
【页数】:9P;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforDeterminationofRelativeCrystallinityofZeoliteSodiumAbyX-rayDiffraction
【原文标准名称】:用X射线衍射法测定沸石钠相对结晶度的标准试验方法
【标准号】:ASTMD5357-2003(2008)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:D32.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:crystallinity;X-raydiffraction;zeolitesodiumA;Crystallinity;Relativecrystallinity;X-raydiffractionanalysis;Zeolitecatalysts
【摘要】:ZeoliteNaAhasbeenusedasanactivecomponentinmolecularsievesemployedasdesiccantsfornaturalgas,processgasstreams,sealedinsulatedwindows,andasabuilder(watersoftener)inhouseholdlaundrydetergents.ThisX-rayprocedureisdesignedtoallowareportingoftherelativedegreeofcrystallizationofNaAinthemanufactureofNaA.Therelativecrystallinitynumberhasprovenusefulintechnology,research,andspecifications.DrasticchangesinintensityofindividualpeaksintheXRDpatternofNaAcanresultfromchangesindistributionofelectrondensitywithintheunitcelloftheNaAzeolite.Theelectrondensitydistributionisdependentupontheextentoffillingofporesinthezeolitewithguestmolecules,andonthenatureoftheguestmolecules.InthisXRDmethod,theguestmoleculeH2Ocompletelyfillsthepores.IntensitychangesmayalsoresultifsomeorallofthesodiumcationsinNaAareexchangedbyothercations.DrasticchangesinoverallintensitycanresultfromchangesinX-rayabsorptionattributedtonon-crystallinephases,ifpresent,inaNaAsample.Ifnon-zeolitecrystallinephasesarepresent,theirdiffractionpeaksmayoverlapwithsomeoftheNaAdiffractionpeaksselectedforthistestmethod.Ifthereisreasontosuspectthepresenceofsuchcomponents,thenNaApeaksfreeofinterferenceshouldbechosenforanalysis.1.1ThistestmethodcoversaprocedurefordeterminingtherelativecrystallinityofzeolitesodiumA(zeoliteNaA)usingselectedpeaksfromtheX-raydiffractionpatternofthezeolite.1.2Thetermx201C;intensityofanX-raypowderdiffraction(XRD)peakx201D;referstothex201C;integralintensity,x201D;eithertheareaorcountsunderthepeakortheproductofthepeakheightandthepeakwidthathalfheight.1.3ThistestmethodprovidesanumberthatistheratioofintensityofportionsoftheXRDpatternofthesampletointensityofthecorrespondingportionofthepatternofareferencezeoliteNaA.Theintensityratio,expressedasapercentage,isthenlabeledrelativecrystallinityofNaA.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G75
【国际标准分类号】:71_040_30
【页数】:3P.;A4
【正文语种】:英语