ISO 15859-10-2004 航天系统.流动特性、取样和试验方法.第10部分:水
时间:2024-05-26 14:50:38 来源: 标准资料网 作者：标准资料网 阅读：9025
【英文标准名称】:Spacesystems-Fluidcharacteristics,samplingandtestmethods-Part10:Water
【原文标准名称】:航天系统.流动特性、取样和试验方法.第10部分:水
【标准号】:ISO15859-10-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-06
【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/TC20
【标准类型】:()
【标准水平】:()
【中文主题词】:流体;航空航天运输;航天运输;定义;水;规范;特性;分类系统;试验;燃料;航空燃料;化学成分;杂质;航天器
【英文主题词】:Aerospacetransport;Aviationfuels;Chemicalcomposition;Classificationsystems;Definition;Definitions;Fluids;Fuels;Impurities;Properties;Spacetransport;Spacecraft;Specification;Testing;Water
【摘要】:ThispartofISO15859specifieslimitsforthecompositionofwaterandestablishesthesamplingandtestrequirementsapplicablefortheverificationofthewatercomposition.ThispartofISO15859isapplicabletoonlypotablewaterandhigh-puritydemineralizedordeionizedwater,usedforcoolingandservicingofspacesystemsaswellasbothflighthardwareandgroundservicing,systemandequipment,ofthefollowingtypes.—TypeHP:highpurity;—TypeP:potable(drinking).Itisnotapplicabletoothertypesofwaterthatmaybeprovidedtoaspacesystem.ThispartofISO15859isapplicabletoinfluentsonlywithinthespecifiedlimitsherein.ThispartofISO15859isapplicabletoanysamplingoperationrequiredtoensurethat,whenthefluidentersthelaunchvehicleorspacecraft,thefluidcompositioncomplieswiththelimitsprovidedhereafterorwithanytechnicalspecificationagreedtoforaparticularuse.
【中国标准分类号】:V04
【国际标准分类号】:49_140
【页数】:9P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforTorsionalRingShearTesttoDetermineDrainedResidualShearStrengthofCohesiveSoils
【原文标准名称】:用扭矩环剪切试验测定粘性土壤排水残余抗剪强度的标准试验方法
【标准号】:ASTMD6467-2006a
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D18.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:粘性土;环剪切试验;环形试验;剪切强度;土壤;试验方法
【英文主题词】:consolidated;drainedtestconditions;Mohr-Coulombstrengthenvelope;reconstitutedspecimens;residualshearstrength;ring-sheartest
【摘要】:Theapparatuskeepsthecross-sectionalareaoftheshearsurfaceconstantduringshearandshearsthespecimencontinuouslyinonerotationaldirectionforanymagnitudeofdisplacement.Thisallowsclayparticlestobecomeorientedparalleltothedirectionofshearandaresidualstrengthconditiontodevelop.Theapparatusallowsareconstitutedspecimentobeoverconsolidatedandpreshearedpriortodrainedshearing.Thissimulatesthefieldconditionsthatleadtoapreexistingshearsurfacealongwhichthedrainedresidualstrengthcanbemobilized.Theringsheartestissuitedtotherelativelyrapiddeterminationofdrainedresidualshearstrengthbecauseoftheshortdrainagepaththroughthethinspecimen,andthecapabilityoftestingonespecimenunderdifferentnormalstressestoquicklyobtainashearstrengthenvelope.Thetestresultsareprimarilyapplicabletoassesstheshearstrengthinslopesthatcontainapreexistingshearsurface,suchasoldlandslides,andshearedbeddingplanes,joints,orfaults.Note18212;Notwithstandingthestatementsonprecisionandbiascontainedinthistestmethod:Theprecisionofthistestmethodisdependentonthecompetenceofthepersonnelperformingitandthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetenttesting.UsersofthistestmethodarecautionedthatcompliancewithPracticeD3740doesnotensurereliabletesting.Reliabletestingdependsonseveralfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodprovidesaprocedureforperformingatorsionalringsheartestunderadrainedconditiontodeterminetheresidualshearstrengthofcohesivesoils.Anundisturbedspecimencanbeusedfortesting.However,obtaininganaturalslipsurfacespecimen,determiningthedirectionoffieldshearing,andtrimmingandproperlyaligningtheusuallynon-horizontalshearsurfaceintheringshearapparatusisdifficult.Asaresult,thistestmethodfocusesontheuseofareconstitutedspecimentomeasuretheresidualstrength.Thistestmethodisperformedbydeformingapresheared,reconstitutedspecimenatacontrolleddisplacementrateuntiltheconstantminimumdrainedshearresistanceisofferedonasingleshearplanedeterminedbytheconfigurationoftheapparatus.Anunlimitedamountofcontinuoussheardisplacementcanbeachievedtoobtainaresidualstrengthcondition.Generally,threeormorenormalstressesareappliedtoatestspecimentodeterminethedrainedresidualfailureenvelope.Aseparatetestspecimenmaybeusedforeachnormalstress.1.2Ashearstress-displacementrelationshipmaybeobtainedfromthistestmethod.However,ashearstress-strainrelationshiporanyassociatedquantity,suchasmodulus,cannotbedeterminedfromthistestmethodbecausepossiblesoilextrusionandvolumechangepreventsdefiningtheheightneededintheshearstraincalculations.Asaresult,shearstraincannotbecalculatedbutsheardisplacementcanbecalculated.1.3Theselectionofnormalstressesandfinaldeterminationoftheshearstrengthenvelopefordesignanalysesandthecriteriatointerpretandevaluatethetestresultsaretheresponsibilityoftheengineerorofficerequestingthetest.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesstatedininch-poundunitsareapproximated.1.5AllmeasuredandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistherespo......
【中国标准分类号】:B11
【国际标准分类号】:13_080_20
【页数】:6P.;A4
【正文语种】:
Product Code:SAE AS21925
Title:Elbow, 90掳 Universal, Flareless Tube, High Profile
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:No scope available.