NF T54-065-4-2011 燃气输送用塑料管道系统.聚乙烯(PE).第4部分:阀门.
作者:标准资料网 时间:2024-05-14 21:01:30 浏览:8010
来源:标准资料网
【英文标准名称】:Plasticspipingsystemsforthesupplyofgaseousfuels-Polyethylene(PE)-Part4:valves.
【原文标准名称】:燃气输送用塑料管道系统.聚乙烯(PE).第4部分:阀门.
【标准号】:NFT54-065-4-2011
【标准状态】:现行
【国别】:法国
【发布日期】:2011-06-01
【实施或试行日期】:2011-06-25
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Accessories;Compressedgasequipment;Definitions;Fittings;Gaspipelines;Gassupply;Gassupplyline;Marking;Materials;Mechanicalproperties;PE;PEpipes;Physicalproperties;Pipelines;Pipingsystem;Plasticpipes;Polyethylene;Pressuregaspipelines;Properties;Specification(approval);Testing;Valves;Valvesandfittingsforpipelines
【摘要】:
【中国标准分类号】:Q82
【国际标准分类号】:23_060_99
【页数】:20P;A4
【正文语种】:其他
Product Code:SAE CPGM2
Title:J1349 Certified Power Engine Data for GM High Feature V6 LF1 as used in 2010 Buick LaCrosse and 2010 Buick Allure FWD Only - Level 2
Issuing Committee:
Scope:This product includes information on the manufacturer, engine, applications, testing location, certified maximum horsepower, certified maximum torque along with the certified curves of horsepower and torque over a wide range of engine RPM speeds.In addition, this product contains complete engine information such as displacement, cylinder configuration, valve train, combustion cycle, pressure charging, charge air cooling, bore, stroke, cylinder numbering convention, firing order, compression ratio, fuel system, fuel system pressure, ignition system, knock control, intake manifold, exhaust manifold, cooling system, coolant liquid, thermostat, cooling fan, lubricating oil, fuel, fuel shut off speed, etc. Also included are all measured test parameters outlined in J2723.【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