DIN 4067-1975 供水.指示牌.地区配水管和远程输水管
作者:标准资料网 时间:2024-05-09 04:25:43 浏览:8578
来源:标准资料网
【英文标准名称】:Water;indicatinglabels,distributionpipesandpipelines
【原文标准名称】:供水.指示牌.地区配水管和远程输水管
【标准号】:DIN4067-1975
【标准状态】:现行
【国别】:德国
【发布日期】:1975-11
【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】:水;标志;尺寸;饮用水;规范(审批);作标记;设计;给水;输水管道
【英文主题词】:Design;Dimensions;Marking;Potablewater;Signs;Specification(approval);Water;Waterpipelines;Watersupply
【摘要】:Water;indicatinglabels;distributionpipesandpipelines
【中国标准分类号】:Q81
【国际标准分类号】:93_025
【页数】:4P;A4
【正文语种】:德语
【英文标准名称】:StandardPracticeforIn-VitroEnvironmentalConditioningofPolymerMatrixCompositeMaterialsandImplantDevices
【原文标准名称】:聚合物基体复合材料和植入装置的实验室条件下环境调节标准实施规程
【标准号】:ASTMF1634-1995(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【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】:F04.15
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:acceleratedconditioning;composite;diffusion;environmentalconditioning;fiber;implantdevices;moistureabsorption;polymer;Acceleratedaging/testing--plastics;Acceleratedaging/testing--surgicaldevices/applications;Composites--surgicalim
【摘要】:TheconditioningprocedurescoveredinthispracticeprovidemethodsforsaturatingPMCspecimensinaliquidenvironmentpriortoconductingothertestsforpropertyevaluation.Theconditioningmayaffectgeometricanddimensionalchangesinspecimens.Insomeseverecases,chemicalchangesmayoccurinthefiber,polymerandfiber-polymerinterphaseandinterface.CautionmustbetakenifProcedureB(10.2,ProcedureBx2014;AcceleratedMoistureSaturationatElevatedTemperature)isfollowedtoconditionPMCspecimensatanelevatedtemperature.Physicalandchemicalreactionsinmaterialsarenormallytemperaturedependent.Anincreaseinexperimentaltemperaturemayaccelerateadesirablemoisturediffusionprocess.However,elevatedtemperaturesabove37x00B0;Cmayalsocauseundesirablereactionsthatdonotrepresentappropriateresponsesofmaterialsat37x00B0;C.Consequently,apilotstudyisrecommendedinProcedureBtodetermineifaselectedelevatedtemperaturecanbeusedforacceleratedconditioning.Ifthepropertiesofmaterialsaredeterminedtobeirreversiblyaffectedbythispilotstudyattheselectedelevatedtemperature,theneitheranappropriatelowerelevatedtemperatureshouldbedeterminedbyrepeatingthepilotstudy,orProcedureBshouldnotbeused.1.1Thispracticecoverstwoproceduresforconditioningnon-absorbablepolymermatrixcomposite(PMC)materialsandimplantdevicesinaliquidenvironmenttoobtainastateofsaturation.1.2ThepurposeofthispracticeistostandardizemethodsandreportingproceduresforconditioningPMCmaterialsandimplantdevices(PMCspecimens)inauserselectedliquidenvironmentpriortoconductingsubsequenttests.Itisnotthepurposeofthispracticetodeterminethediffusioncoefficientsoractualsaturationlevelsofagivenliquidintothematerialsanddevices.Forthesedeterminations,otherprocedures,suchasTestMethodD5229,maybefollowed.1.3Diffusionofliquidintoasolidmaterialisaslowprocess.Whilethetimenecessarytoachievesaturationat37x00B0;Cmaybesufficientlyshortforthinspecimens,suchasfracturefixationplates,itmaybeprohibitivelylonginthicksections,suchasfemoralcomponentsforhiparthroplasty.However,thediffusionprocessmaybeacceleratedatanelevatedtemperature.Consequently,twoseparateprocedures(ProceduresAandB)arepresentedinthispractice.ProcedureAcoversexposingthespecimentothedesiredconditioningenvironmentat37x00B0;C.ProcedureBprescribesamethodtoacceleratethediffusionprocessbyconditioningthespecimenataselectedelevatedtemperature.1.4Thispracticedoesnotspecifythetestenvironmenttobeusedforconditioning.However,thepHvalueofimmersionliquidshallbemaintainedat7.4x00B1;0.2tosimulatetheinvivoenvironment.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C45
【国际标准分类号】:11_040_40
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:Printedboards-Rigidmultilayerprintedboardswithinterlayerconnections-Sectionalspecification-Capabilitydetailspecification-Performancelevels,A,BandC
【原文标准名称】:印制电路板.层间连接刚性印制电路板.分规范.性能详细规格.A,B和C级性能水平
【标准号】:BSEN62326-4-1-1997
【标准状态】:现行
【国别】:英国
【发布日期】:1997-06-15
【实施或试行日期】:1997-06-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisCapabilityDetailSpecification(CapDS)isbasedonIEC2326-4.Itrelatestorigidmultilayerprintedboardswithinteriayerconnectionsmanufacturedwithmaterialsspecifiedin3.1.Itspecifiesthecapabilityqualifyingcomponent(CQC),thecharacteristicstobetested,thetestmethodsandconditionstobeappliedandtherequirementstobefulfilledfortestingcapabilityforperformancelevelA,BorC.
【中国标准分类号】:L30
【国际标准分类号】:31_180
【页数】:70P;A4
【正文语种】:英语
