【英文标准名称】:StandardTestMethodforDeterminingthe(In-plane)FlowRateperUnitWidthandHydraulicTransmissivityofaGeosyntheticUsingaConstantHead
【原文标准名称】:使用恒定压头测定土工合成织物(在平面中)单位宽度流速和液压透射率的试验方法
【标准号】:ASTMD4716-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D35.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:geosynthetics;hydraulictransmissivity;in-planeflow;indextest;performancetest;Gradientratio;Hydraulicconductivity/transmissivity;In-planeflow;Stress--geosynthetics;Surfaceanalysis--soil/rock/relatedmaterials;Transmissivityandrefle
【摘要】:Thistestmethodisintendedeitherasanindextestorasaperformancetestusedtodetermineandcomparetheflowrateperunitwidthofoneorseveralcandidategeosyntheticsunderspecificconditions.Thistestmethodmaybeusedasanindextestforacceptancetestingofcommercialshipmentsofgeosyntheticsbutcautionisadvisedsinceinformationonbetween-laboratoryprecisionofthistestmethodisincomplete.Comparativetestsasdirectedin5.2.1maybeadvisable.Incaseofadisputearisingfromdifferencesinreportedtestresultswhenusingthistestmethodforacceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldfirstconfirmthatthetestswereconductedusingcomparabletestparametersincludingspecimenconditioning,normalstress,seatingperiod,hydraulicgradient,testwatertemperature,etc.,thenconductcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimensthatareashomogenousaspossibleandthatareformedfromalotofthematerialofthetypeinquestion.Thetestspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.TheaverageresultsfromthetwolaboratoriesshouldbecomparedusingtheStudent''st-testforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforethetestingisbegun.Ifbiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandsuppliermustagreetointerpretfuturetestresultsinlightoftheknownbias.1.1Thistestmethodcoverstheprocedurefordeterminingtheflowrateperunitwidthwithinthemanufacturedplaneofgeosyntheticsundervaryingnormalcompressivestressesandaconstanthead.Thetestisintendedprimarilyasanindextestbutcanbeusedalsoasaperformancetestwhenthehydraulicgradientsandspecimencontactsurfacesareselectedbytheusertomodelanticipatedfieldconditions.1.2Thistestmethodislimitedtogeosyntheticsthatallowcontinuousin-planeflowpathstooccurparalleltotheintendeddirectionofflow.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesstatedinparenthesesareprovidedforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:10P.;A4
【正文语种】:英语


【英文标准名称】:Steelplate,sheetandstrip.Carbonandcarbon-manganeseplate,sheetandstrip.Specificationforhotrolledsteelplate,sheetandwidestripbasedonformability
【原文标准名称】:钢板、钢薄板和带材.第1部分:碳和锰钢板、钢薄板和带材.第2节:具有可塑性的冷轧钢板、搴涂泶墓娣
【标准号】:BS1449Pt.1Sec.1.2-1991
【标准状态】:作废
【国别】:英国
【发布日期】:1991-10-31
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:应变伸长;滚轧;薄板材;名称与符号;材料的机械性能;化学成分;带材;锰钢;屈服强度;抗拉强度;非合金钢;钢
【英文主题词】:steels;yieldstrength;strainelongation;tensilestrength;rolling;chemicalcomposition;manganesesteels;mechanicalpropertiesofmaterials;unalloyedsteels;designations;strips;sheetmaterials
【摘要】:
【中国标准分类号】:H46
【国际标准分类号】:77_140_50
【页数】:12P;A4
【正文语种】:英语