IEC 61156-2-1-2003 数字通信用对绞或星绞多芯对称电缆.第2-1部分:水平平面布线.空白详细规范
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【英文标准名称】:Multicoreandsymmetricalpair/quadcablesfordigitalcommunications-Part2-1:Horizontalfloorwiring;Blankdetailspecification
【原文标准名称】:数字通信用对绞或星绞多芯对称电缆.第2-1部分:水平平面布线.空白详细规范
【标准号】:IEC61156-2-1-2003
【标准状态】:作废
【国别】:国际
【发布日期】:2003-04
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC46C
【标准类型】:()
【标准水平】:()
【中文主题词】:规范;电气工程;数字信号;多芯电缆;详细规范;传播技术;通信电缆;布线;电缆
【英文主题词】:Cables;Cabling;Communicationcables;Communicationtechnology;Detailspecification;Digitalsignals;Electricalengineering;Multicorecables;Specification
【摘要】:Determinesthelayoutandstylefordetailspecificationsdescribingmulticoloreandsymmetricalpair(s)/quad(s)cablesfordigitalcommunicationinhorizontalfloorwiring.Detailspecificationsbasedontheblankdetailspecificationmaybepreparedby
【中国标准分类号】:K13
【国际标准分类号】:33_120_20
【页数】:26P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforPreparingRefractoryCastableSpecimensbyColdGunning
【原文标准名称】:用冷喷射法制作耐火可浇注材料样品的标准实施规程
【标准号】:ASTMC903-2010
【标准状态】:现行
【国别】:
【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】:C08.09
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:喷射法;回弹;预湿润;耐火可浇注材料;样品;冷喷射法;难熔物;耐火混凝土;试样制备-耐火材料
【英文主题词】:gunning;rebound;predampening;refractorycastable;specimens;Cold-gunningmethod;Gunning;Predampening;Rebound;Refractories(castable);Refractoryconcrete;Specimenpreparation(fortesting)--refractories
【摘要】:Thepropertiesofrefractorycastablescanbeaffectedbytheirmethodofinstallation.Thispracticeattemptstominimizethevariablesencounteredduringinstallationbypneumaticgunning.ThispracticeprovidesparameterstoproducegunnedspecimensforuseinotherASTMtestmethods.Thispracticemaybeusedtoproducespecimensforacceptancetesting,serviceevaluation,manufacturingcontrol,andresearchanddevelopment.Differencesbetweenvariouskindsofequipmentandthedifferencesinproceduresandoperatortechniquesmayresultinsignificantvariationsinthephysicalpropertiesofthegunnedspecimens.Itisrecommendedthatthesameoperatorusethesameequipmenttoproducespecimensforrefereetestingagreedtobytheinvolvedtestingparties.Thespecificoperatingparametersshouldbeshowninthereport.Althoughthispracticeisspecificallydesignedforrefractorycastablescontainingcalciumaluminatecement,itmaybeusedwithminormodificationsforgunmixescontainingotherbondsystems.1.1Thispracticecoversaprocedureforpreparingrefractorycastablespecimensusuallycontainingcalciumaluminatecementwithorwithoutmetalfibersbycoldnozzle-mixgunning.SpecimenspreparedinaccordancewiththispracticeareintendedforuseinstandardASTMtestmethodsrequiredforevaluatinggunnedmaterials.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:2P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodfortheDeterminationofTotalHydrogenContentofUraniumOxidePowdersandPelletsbyCarrierGasExtraction
【原文标准名称】:用载气萃取法测定二氧化铀粉末或颗粒中氢的总含量的标准试验方法
【标准号】:ASTMC1457-2000(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:C26.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:二氧化钆;二氧化钆-二氧化铀;杂质含量;氢含量;二氧化铀
【英文主题词】:gadoliniumoxide;gadoliniumoxide-uraniumoxide;hydrogencontent;impuritycontent;uraniumoxide
【摘要】:Uraniumdioxideisusedasanuclear-reactorfuel.Gadoliniumoxideisusedasanadditivetouraniumdioxide.Inordertobesuitableforthispurpose,thesematerialsmustmeetcertaincriteriaforimpuritycontent.ThistestmethodisdesignedtodeterminewhetherthehydrogencontentmeetsSpecificationsC753,C776,C888,andC922.1.1Thistestmethodappliestothedeterminationofhydrogeninnuclear-gradeuraniumoxidepowdersandpelletstodeterminecompliancewithspecifications.Gadoliniumoxide(Gd2O3)andgadoliniumoxide-uraniumoxidepowdersandpelletsmayalsobeanalyzedusingthistestmethod.1.2Thisstandarddescribesaprocedureformeasuringthetotalhydrogencontentofuraniumoxides.Thetotalhydrogencontentresultsfromabsorbedwater,waterofcrystallization,hydro-carbidesandotherhydrogenatedcompoundswhichmayexistasfuel'simpurities.1.3Thistestmethodcoversthedeterminationof0.05to200gofresidualhydrogen.1.4Thistestmethoddescribesanelectrodefurnacecarriergascombustionsystemequippedwithathermalconductivitydetector.1.5Thepreferredsystemofunitsismicrogramshydrogenpergramofsample(g/gsample)ormicrogramshydrogenpergramofuranium(g/gU).1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F40
【国际标准分类号】:27_120_30
【页数】:4P.;A4
【正文语种】:
