SAE AMS5516 Steel, Corrosion-Resistant, Sheet, Strip, and Plate, 18Cr - 9.0Ni (SAE 30302), Solution Heat Treated
作者:标准资料网 时间:2024-05-25 00:27:48 浏览:9841
来源:标准资料网
Product Code:SAE AMS5516
Title:Steel, Corrosion-Resistant, Sheet, Strip, and Plate, 18Cr - 9.0Ni (SAE 30302), Solution Heat Treated
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion-resistant steel in the form of sheet, strip, and plate.
【英文标准名称】:StandardTestMethod(AnalyticalProcedure)forDeterminingTransmissivityandStorageCoefficientofNonleakyConfinedAquifersbytheModifiedTheisNonequilibriumMethod
【原文标准名称】:经改进的泰斯非平衡法测定非渗漏承压含水层的传输和贮存系数的标准试验方法(分析规程)
【标准号】:ASTMD4105-1996(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【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】:D18.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:aquifertests;aquifers;confinedaquifers;controlwells;groundwater;hydraulicproperties;observationwells;storagecoefficient;transmissivity;unconfinedaquifers;Theismethodsofanalysis;Transmissivityandreflectivity;Unconfined/unconsolidat
【摘要】:Assumptions:Welldischargesataconstantrate,Q.Wellisofinfinitesimaldiameterandfullypenetratestheaquifer,thatis,thewellisopentothefullthicknessoftheaquifer.Thenonleakyaquiferishomogeneous,isotropic,andareallyextensive.Anonleakyaquiferreceivesinsignificantcontributionofwaterfromconfiningbeds.Dischargefromthewellisderivedexclusivelyfromstorageintheaquifer.ThegeometryoftheassumedaquiferandwellconditionsareshowninFig.1.ImplicationsofAssumptions:Implicitintheassumptionsaretheconditionsofradialflow.Verticalflowcomponentsareinducedbyacontrolwellthatpartiallypenetratestheaquifer,thatis,notopentotheaquiferthroughitsfullthickness.Ifthecontrolwelldoesnotfullypenetratetheaquifer,thenearestpiezometerorpartiallypenetratingobservationwellshouldbelocatedatadistance,r,beyondwhichverticalflowcomponentsarenegligible,whereaccordingtoReed(5)Thissectionappliestodistance-drawdowncalculationsoftransmissivityandstoragecoefficientandtime-drawdowncalculationsofstoragecoefficient.Ifpossible,computetransmissivityfromtime-drawdowndatafromwellslocatedwithinadistance,r,ofthepumpedwellusingdatameasuredaftertheeffectsofpartialpenetrationhavebecomeconstant.ThetimeatwhichthisoccursisgivenbyHantush(6)by:Fullypenetratingobservationwellsmaybeplacedatlessthandistancerfromthecontrolwell.Observationwellsmaybeonthesameoronvariousradiallinesfromthecontrolwell.TheTheismethodassumesthecontrolwellisofinfinitesimaldiameter.Also,itassumesthatthewaterlevelinthecontrolwellisthesameasintheaquifercontiguoustothewell.Inpracticetheseassumptionsmaycauseadifferencebetweenthetheoreticaldrawdownandfieldmeasurementsofdrawdownintheearlypartofthetestandinandnearthecontrolwell.Controlwellstorageisnegligibleafteratime,t,givenbythefollowingequationafterweeks(7).where:rc
【中国标准分类号】:P13
【国际标准分类号】:93_160
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:IsopropylAlcohol
【原文标准名称】:异丙醇
【标准号】:ASTMD770-1990
【标准状态】:作废
【国别】:美国
【发布日期】:1990
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:醇;芳族化合物;异丙醇;规范(批准);溶剂;芳烃
【英文主题词】:aromaticcompounds;alcohol;aromatichydrocarbons;isopropylalcohol;solvents;specification(approval)
【摘要】:
【中国标准分类号】:G17
【国际标准分类号】:87_060_30
【页数】:2P;A4
【正文语种】:英语
