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ISO 12151-2-2003 液压传动和通用联接件.软管接头.第2部分:带ISO8434-1O形圈24锥形末端的软管接头

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【英文标准名称】:Connectionsforhydraulicfluidpowerandgeneraluse-Hosefittings-Part2:HosefittingswithISO8434-124°coneconnectorendswithO-rings
【原文标准名称】:液压传动和通用联接件.软管接头.第2部分:带ISO8434-1O形圈24锥形末端的软管接头
【标准号】:ISO12151-2-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-06
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC131
【标准类型】:()
【标准水平】:()
【中文主题词】:配件;液压传动;液压装置;定义;生产长度;规范(验收);架设(施工作业);O型密封圈;软管连接;液压的;名称与符号;尺寸;液压管路;软管配件;锥形接管
【英文主题词】:Conicalnipples;Definitions;Designations;Dimensions;Erecting(constructionoperation);Fittings;Fluidcircuits;Hoseconnections;Hosefittings;Hydraulic;Hydraulicfluidpower;Hydraulics;Mechanicalengineering;O-rings;Productionlength;Specification(approval)
【摘要】:ThispartofISO12151specifiesthegeneralanddimensionalrequirementsforthedesignandperformanceofhosefittingswith24°coneconnectorendswithO-rings,inaccordancewithISO8434-1andISO8434-4.Thesehosefittingsaremadeofcarbonsteelandareintendedforusewithhoseswithnominalinsidediametersfrom5mmthrough38mm(inclusive).NOTE1Materialsotherthancarbonsteelmaybesuppliedasagreedbetweenthemanufactureranduser.NOTE2Forhosefittingsusedinhydraulicandpneumaticbrakingsystemsonroadvehicles(asdefinedinthescopeofISO/TC22),seeISO4038,ISO4039-1andISO4039-2.Thesehosefittings(seeFigure1foratypicalexample)areforuseinfluidpowersystemswithhosesthatmeettherequirementsofrespectivestandardsandingeneralapplicationswithsuitablehoses.
【中国标准分类号】:J20
【国际标准分类号】:23_040_70;23_100_40
【页数】:13P.;A4
【正文语种】:英语


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基本信息
标准名称:楚雄烤烟综合标准 第32部分: 烤烟信息化建设及管理规程
发布部门:云南省质量技术监督局
发布日期:2008-11-16
实施日期:2009-03-01
首发日期:
作废日期:
主管部门:云南省质量技术监督局
出版社:中国标准出版社
出版日期:2009-03-01
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所属分类: 食品 食品加工与制品 禽 蛋加工与制品 食品技术 肉 肉制品和其他动物类食品 家禽和蛋
【英文标准名称】:StandardTestMethodsforLaboratoryDeterminationofDensity(UnitWeight)ofSoilSpecimens
【原文标准名称】:实验室测定土壤样品的密度(单位重量)的标准试验方法
【标准号】:ASTMD7263-2009
【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】:D18.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:density;porosity;saturation;specimen;unitweight;voidratio
【摘要】:Drydensity,asdefinedasx201C;densityofsoilorrockx201D;inTerminologyD653andx201C;bulkdensityx201D;bysoilscientists,canbeusedtoconvertthewaterfractionofsoilfromamassbasistoavolumebasisandvise-versa.Whenparticledensity,thatis,specificgravity(TestMethodsD854)isalsoknown,drydensitycanbeusedtocalculateporosityandvoidratio(seeAppendixX1).Drydensitymeasurementsarealsousefulfordeterminingdegreeofsoilcompaction.Sincemoisturecontentisvariable,moistsoildensityprovideslittleusefulinformationexcepttoestimatetheweightofsoilperunitvolume,forexample,poundspercubicyard,atthetimeofsampling.Sincesoilvolumeshrinkswithdryingofswellingsoils,bulkdensitywillvarywithmoisturecontent.Hence,thewatercontentofthesoilshouldbedeterminedatthetimeofsampling.Densities(unitweights)ofremolded/reconstitutedspecimensarecommonlyusedtoevaluatethedegreeofcompactionofearthenfills,embankments,etc.Drydensityvaluesareusuallyusedinconjunctionwithcompactioncurvevalues(TestMethodsD698andD1557).Density(unitweight)isoneofthekeycomponentsindeterminingthemasscomposition/phaserelationsofsoil,seeAppendixX1.Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingitandthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonseveralfactors;PracticeD3740providesameansofevaluatingsomeofthesefactors.1.1Thesetestmethodsdescribetwowaysofdeterminingthetotal/moistanddrydensities(unitweights)ofintact,disturbed,remolded,andreconstituted(compacted)soilspecimens.Density(unitweight)asusedinthisstandardmeansthesameasx201C;bulkdensityx201D;ofsoilasdefinedbytheSoilScienceSocietyofAmerica.Intactspecimensmaybeobtainedfromthin-walledsamplingtubes,blocksamples,orclods.Specimensthatareremoldedbydynamicorstaticcompactionproceduresmayalsobemeasuredbythesemethods.Thesemethodsapplytosoilsthatwillretaintheirshapeduringthemeasurementprocessandmayalsoapplytoothermaterialssuchassoil-cement,soil-lime,soil-bentoniteorsolidifiedsoil-bentonite-cementslurries.Itiscommonforthedensity(unitweight)ofspecimensafterremovalfromsamplingtubesandcompactionmoldstobelessthanthevaluebasedontubeormoldvolumes,orofin-situconditions.Thisisduetothespecimenswellingafterremovaloflateralpressures.1.1.1MethodAcoverstheprocedureformeasuringthevolumeofwaxcoatedspecimensbydeterminingthequantityofwaterdisplaced.1.1.1.1Thismethodonlyappliestospecimensinwhichthewaxwillnotpenetratetheoutersurfaceofthespecimen.1.1.2MethodBcoverstheprocedurebymeansofthedirectmeasurementofthedimensionsandmassofaspecimen,usuallyoneofcylindricalshape.Intactandreconstituted/remoldedspecimensmaybetestedbythismethodinconjunctionwithstrength,permeability(air/water)andcompressibilitydeterminations.1.2ThevaluesstatedinSIunitsare......
【中国标准分类号】:B11
【国际标准分类号】:13_080_20
【页数】:7P.;A4
【正文语种】:英语