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ASTM D5541-1994(2003) 明渠流量阶段排水关系确定的标准规范

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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】:


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【英文标准名称】:Fibreopticinterconnectingdevicesandpassivecomponents-Fibreopticisolators-Genericspecification
【原文标准名称】:光纤互连器件和无源元件.光纤隔离器.总规范
【标准号】:BSEN61202-1-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-10-31
【实施或试行日期】:2009-10-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:分类;定义(术语);详细规范;电气工程;环境要求;紧固件;光纤;总规范;玻璃纤维光缆;识别;绝缘子;互连接;作标记;测量;测量技术;光学的;光波导;光学;包装件;工作性能;特性;质量;质量要求;安全性;规范;规范(验收);测试
【英文主题词】:Classification;Definitions;Detailspecification;Electricalengineering;Environmentalrequirements;Fasteners;Fibreoptics;Genericspecification;Glassfibrecables;Identification;Insulators;Interconnection;Marking;Measurement;Measuringtechniques;Optical;Opticalwaveguides;Optics;Packages;Performanceinservice;Properties;Quality;Qualityrequirements;Safety;Specification;Specification(approval);Testing
【摘要】:
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:34P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforHeatRelease,FlameSpreadandMassLossTestingofInsulatingMaterialsContainedinElectricalorOpticalFiberCablesWhenBurninginaVerticalCableTrayConfiguration
【原文标准名称】:电缆或光缆的绝缘材料在立式电缆槽结构中燃烧时热释放,火焰扩散和质量损失试验的标准试验方法
【标准号】:ASTMD5537-1994
【标准状态】:作废
【国别】:美国
【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】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:K15
【国际标准分类号】:29_040_20;13_220_40
【页数】:
【正文语种】:英语