NF S66-200-1/IN1-2011 尘云的爆炸特性测定.第1部分:测定尘埃云的最大爆炸压力Pmax.
时间:2024-05-14 00:03:46 来源: 标准资料网 作者：标准资料网 阅读：9666
【英文标准名称】:Determinationofexplosioncharacteristicsofdustclouds-Part1:determinationofthemaximumexplosionpressurePmaxdustclouds.
【原文标准名称】:尘云的爆炸特性测定.第1部分:测定尘埃云的最大爆炸压力Pmax.
【标准号】:NFS66-200-1/IN1-2011
【标准状态】:现行
【国别】:法国
【发布日期】:2011-02-01
【实施或试行日期】:
【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】:Concentration;Conglomerates;Definitions;Dust;Dustcloud;Dustexplosions;Experimentation;Explosionindex;Explosionpressure;Explosionprotection;Explosions;Explosiveatmospheres;Firesafety;Flammablematerials;Gasmixtures;Limits(mathematics);Mathematicalcalculations;Measurement;Measuringtechniques;Parameters;Potentiallyexplosivematerials;Pressureoverload;Properties;Safetyengineering;Surfacespreadofflame;Testequipment;Testing
【摘要】:
【中国标准分类号】:
【国际标准分类号】:13_230
【页数】:3P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodfor(AnalyticalProcedure)forDeterminingTransmissivityandStorageCoefficientofConfinedNonleakyorLeakyAquiferbyConstantDrawdownMethodinFlowingWell
【原文标准名称】:在自流井中用恒定水位降低法测定固定不漏或含水土层泄露比和储水系数(分析程序)的标准试验方法
【标准号】:ASTMD5855-1995(2006)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:含水土层;地下水;试验;井的建造;井
【英文主题词】:aquifers;aquifertests;controlwells;groundwater;observationwells;storagecoefficient;transmissivity
【摘要】:Assumptionsx2014;LeakyAquifer:5.1.1Drawdown(sW)inthecontrolwellisconstant,5.1.2Wellisinfinitesimaldiameterandfullypenetratesaquifer,5.1.3Theaquiferishomogeneous,isotropic,andareallyextensive,and5.1.4Thecontrolwellis100%efficient.Assumptionsx2014;NonleakyAquifer:5.2.1Drawdown(sW)inthecontrolwellisconstant,5.2.2Wellisinfinitesimaldiameterandfullypenetratesaquifer,5.2.3Theaquiferishomogeneous,isotropic,andareallyextensive,5.2.4Dischargefromthewellisderivedexclusivelyfromstorageinthenonleakyaquifer,and5.2.5Thecontrolwellis100%efficient.ImplicationsofAssumptions:5.3.1Theassumptionsareapplicabletoconfinedaquifersandfullypenetratingcontrolwells.However,thistestmethodmaybeappliedtopartiallypenetratingwellswherethemethodmayprovideanestimateofhydraulicconductivityfortheaquiferadjacenttotheopenintervalofthewellifthehorizontalhydraulicconductivityissignificantlygreaterthantheverticalhydraulicconductivity.5.3.2Valuesobtainedforstoragecoefficientarelessreliablethanthevaluescalculatedfortransmissivity.Storagecoefficientvaluescalculatedfromcontrolwelldataarenotreliable.1.1Thistestmethodcoversananalyticalsolutionfordeterminingtransmissivityandstoragecoefficientofaleakyornonleakyconfinedaquifer.Itisusedtoanalyzedataontheflowratefromacontrolwellwhileaconstantheadismaintainedinthewell.1.2ThisanalyticalprocedureisusedinconjunctionwiththefieldprocedureinPracticeD5786.1.3Limitations-Thelimitationsofthistechniqueforthedeterminationofhydraulicpropertiesofaquifersareprimarilyrelatedtothecorrespondencebetweenfieldsituationandthesimplifyingassumptionofthesolution.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13;A42
【国际标准分类号】:13_060_10
【页数】:5P.;A4
【正文语种】:
【英文标准名称】:Connectorsforopticalfibresandcables;part1-1:blankdetailspecification;environmentalcategories
【原文标准名称】:光纤光缆连接器第1-1部分:空白详细规范环境类别
【标准号】:IEC60874-1-1-1994
【标准状态】:作废
【国别】:国际
【发布日期】:1994-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC86B
【标准类型】:()
【标准水平】:()
【中文主题词】:类别;插头;详细规范;光波导;玻璃纤维电缆
【英文主题词】:Categories;Detailspecification;Electricplugs;Glassfibrecables;Opticalwaveguides
【摘要】:Theblankdetailspecificationisnot,byitself,aspecification.ItispartofthegenericspecificationIEC874-1andappliestooneoftheenvironmentalcategories1to6or99specified.Includesthemandatoryqualityassurancetestschedulesandpe
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:61P;A4
【正文语种】:英语