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【英文标准名称】:StandardPracticeforDevelopingaStage-DischargeRelationforOpenChannelFlow
【原文标准名称】:明渠流量阶段排水关系确定的标准规范
【标准号】:ASTMD5541-1994(2003)
【标准状态】:现行
【国别】:
【发布日期】:1994
【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】:D19.07
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:水;渠道水力学;明渠流量确定;上升;等级曲线;阶段;流量和流速;放电;明渠流量;排水;规程;废水
【英文主题词】:discharge;ratingcurve;stage;stage-dischargerelation
【摘要】:Thispracticeisparticularlyusefulfordeterminingthedischargeatagagingstationoralocationwheredischargeinformationisrepeatedlyneeded.Thispracticeisapplicableonlyforopen-channelflowconditionswherechannelhydraulicspermitastablerelationbetweenstageanddischarge.1.1Thispracticecoversthedevelopmentofacurverelatingstage(elevation)todischarge.Standardtestmethodshavebeendocumentedformeasuringdischargeandformeasuringstage(seePracticeD3858,andTestMethodsD5129,D5130,D5243,D5388,andD5413).Thispracticetakesthedischargeandstagedeterminedbyeachrespectivetestmethodandshowsarelationbetweenthemusingacurvedline.Thiscurvedlineiscalledastage-dischargerelationorratingcurve.1.2Theproceduresdescribedinthispracticeareusedcommonlybythoseresponsibleforinvestigationsofstreamflow,forexample,theU.S.GeologicalSurvey,ArmyCorpsofEngineers,BureauofReclamation,andU.SAgricultureResearchService.Forthemostpart,theseproceduresareadaptedfromreportsoftheU.S.GeologicalSurvey.178;,179;1.3Theproceduresdescribedinthispracticeapplyonlytosimplefreelyflowingopen-channelflow.Ratingsforcomplexhydraulicconditionsofextremelylowslopechannelsusingmultiple-stageinputs,channelsaffectedbyman-inducedregulation,ortidalconditionsarenotdescribed.ThesetypesofratingsaredescribedindetailinthedocumentslistedinFootnotes2and3.1.4Thispracticeusestheresultsofcurrent-meterdischargemeasurementsorindirectdischargemeasurementsandthecorrespondingmeasuredstagetodefineasmuchofthestage-dischargerelationcurveaspossible.Atheoreticalcurveisdevelopedforthefullrangeofstageanddischargetoshapethecurve.1.5Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:TerminologyRelatingtoElectricalInsulatingLiquidsandGases
【原文标准名称】:电绝缘液体和气体的相关术语
【标准号】:ASTMD2864-1993
【标准状态】:作废
【国别】:美国
【发布日期】:1993
【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】:术语;电绝缘;电气工程;电绝缘材料;定义;绝缘液体
【英文主题词】:definitions;terminology;insulatingliquids;electricalinsulatingmaterials;electricalengineering;electricalinsulation
【摘要】:
【中国标准分类号】:K15
【国际标准分类号】:29_040_20
【页数】:6P;A4
【正文语种】:英语