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【英文标准名称】:Fibreboards-Specifications-Requirementsfordryprocessboards(MDF)
【原文标准名称】:纤维板.规范.干燥处理板(MDF)的要求
【标准号】:BSEN622-5-2006
【标准状态】:作废
【国别】:英国
【发布日期】:2006-09-29
【实施或试行日期】:2006-09-29
【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】:抗弯强度;板材;一致性;建筑;定义;干燥区域;外部面积;建筑用纤维板;压制平板;硬的;潮湿房间;湿度范围;承载;承载板;作标记;多孔的;特性;规范(验收);膨胀;厚度肿胀;抗拉强度;横向拉伸强度;木材;木纤维板;木质板材
【英文主题词】:Bendingstrength;Boards;Consistency;Construction;Definitions;Dryareas;Exteriorareas;Fibrebuildingboard;Flatpressedboards;Hard;Humidrooms;Humidityranges;Loadbearing;Loadbearingplanes(horizontalorinclined);Marking;Porous;Properties;Specification(approval);Swelling;Swellinginthickness;Tensilestrength;Transversetensilestrength;Wood;Woodfibreboards;Woodbasedsheetmaterials
【摘要】:ThisEuropeanStandardspecifiestherequirementsfordryprocessboards(MDF)asdefinedinEN316.ThevalueslistedinthisEuropeanStandardrelatetoproductpropertiesbuttheyarenotcharacteristicvaluestobeusedindesigncalculations1).
【中国标准分类号】:B70
【国际标准分类号】:79_060_20
【页数】:18P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethod(AnalyticalProcedure)forDeterminingHydraulicPropertiesofaConfinedAquiferTakingintoConsiderationStorageofWaterinLeakyConfiningBedsbyModifiedHantushMethod
【原文标准名称】:用改良的hantus方法测定越流性隔水层中包括蓄水层的封闭含水层水压特性的标准试验方法
【标准号】:ASTMD6028-1996(2010)e1
【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】:aquifers;aquifertests;confinedaquifers;confiningbeds;controlwells;groundwater;hydraulicproperties;leakance;leakyaquifers;observationwells;storagecoefficient;transmissivity;Storage--aquifers;Transmissivity;Confinedaquifer
【摘要】:Assumptions:Thecontrolwelldischargesataconstantrate,Q.Thecontrolwellisofinfinitesimaldiameterandfullypenetratestheaquifer.Theaquiferishomogeneous,isotropic,andareallyextensive.Theaquiferremainssaturated(thatis,waterleveldoesnotdeclinebelowthetopoftheaquifer).Theaquiferisoverlainorunderlain,orboth,everywherebyconfiningbedsindividuallyhavinguniformhydraulicconductivities,specificstorages,andthicknesses.TheconfiningbedsareboundedonthedistalsidesbyoneofthecasesshowninFig.1.1.1Thistestmethodcoversananalyticalprocedurefordeterminingthetransmissivityandstoragecoefficientofaconfinedaquifertakingintoconsiderationthechangeinstorageofwaterinoverlyingorunderlyingconfiningbeds,orboth.Thistestmethodisusedtoanalyzewater-levelorheaddatacollectedfromoneormoreobservationwellsorpiezometersduringthepumpingofwaterfromacontrolwellataconstantrate.Withappropriatechangesinsign,thistestmethodalsocanbeusedtoanalyzetheeffectsofinjectingwaterintoacontrolwellataconstantrate.1.2ThisanalyticalprocedureisusedinconjunctionwithTestMethodD4050.1.3Limitations8212;ThevaliduseofthemodifiedHantushmethod(1)islimitedtothedeterminationofhydraulicpropertiesforaquifersinhydrogeologicsettingswithreasonablecorrespondencetotheassumptionsoftheHantush-Jacobmethod(TestMethodD6029)withtheexceptionthatinthiscasethegainorlossofwaterinstorageintheconfiningbedsistakenintoconsideration(see5.1).Allpossiblecombinationsofimpermeablebedsandsourcebeds(forexample,bedsinwhichtheheadremainsuniform)areconsideredonthedistalsideoftheleakybedsthatconfinetheaquiferofinterest(seeFig.1).1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:13_060_10
【页数】:9P.;A4
【正文语种】:英语