【英文标准名称】:StandardGuideforSetofDataElementstoDescribeaGround-WaterSite;PartTwo-PhysicalDescriptors
【原文标准名称】:描述地下水位置的数据元集标准指南;第二部分:物质描述符
【标准号】:ASTMD5409/D5409M-1993(2010)e1
【标准状态】:现行
【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(US-ASTM)
【起草单位】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:aquifertest;confidenceclassification;drainagebasin;geohydrologicunit;geologicalsample;geophysicallog;groundwater;ground-waterdischarge;ground-watersite;ground-watersiteconstruction;monitoringsite;sourceagency;springsite
【摘要】:Dataatground-watersitesaregatheredformanypurposes.Eachofthesepurposesgenerallyrequiresaspecificsetofdataelements.Forexample,whentheground-waterqualityisofconcernnotonlyarethex2018;minimumsetofdataelementsx2019;requiredforthesite,butinformationconcerningthesamplecollectiondepthinterval,methodofcollection,anddateandtimeofcollectionareneededtofullyqualifythedata.Anothergroupofelementsarerecommendedforeachuseofthedata,suchasaquifercharacteristicsorwater-levelrecords.Normallythemoreinformationthatisgatheredaboutasitebyfieldpersonnel,theeasieritistounderstandtheground-waterconditionsandtoreachvalidconclusionsandinterpretationsregardingthesite.ThedataelementslistedinthisguideandGuidesD5408andD5410shouldassistinplanningwhatinformationcanbegatheredforaground-watersiteandhowtodocumentthesedata.Note68212;Someimportantdataelementsmaychangeduringtheexistenceofasite.Forexample,theelevationofthemeasuringpointusedforthemeasurementofwaterlevelsmaybemodifiedbecauseofrepairorreplacementofequipment.Thisfrequentlyoccurswhenthemeasuringpointisanopeninginthepumpandthepumpismodifiedorreplaced.Becausechangescannotalwaysbeanticipated,itispreferabletoreferencetheheightofthemeasuringpointtoapermanentnearbyaltitudedatum.Themeasuringpointisreferencedbybeingthesamealtitude(zerocorrection)orabove(negativecorrection)orbelow(pluscorrection)thealtitudedatum.Allappropriatemeasurementsshouldbecorrectedinreferencetothealtitudedatumbeforeentryintothepermanentrecord.Caremustbeexercisedtokeeptherelationshipofthesedataelementsconsistentthroughoutthedurationofthesite.Somedataelementshaveanextensivelistofcomponentsorpossibleentries.Forexample,theaquiferidentificationlistdescribedin6.1.8hasover5000entries.Lengthylistsofpossibleentriesarenotincludedinthisguide,however,informationonwheretoobtainthesecomponentsisincludedwiththespecificdataelement.Note78212;Thisguideidentifiesothersources,lists,etc.,ofinformationrequiredtocompletelydocumentinformationaboutanyground-watersite.1.1ThisguidecoversPartTwoofthreeguidestobeusedinconjunctionwithPracticeD5254thatdelineatesthedatadesirabletodescribeaground-waterdatacollectionorsamplingsite.Thisguideidentifiesphysicaldescriptors,suchasconstructionandgeologicelements,forasite.PartOne(GuideD5408)describesadditionalinformationbeyondtheminimumsetofdataelementsthatmaybespecifiedtoidentifyanyindividualground-watersite,whilePartThreeidentifiesusagedescriptors,suchasmonitoring,foranindividualground-watersite.Note18212;Aground-watersiteisdefinedasanysource,location,orsamplingstationcapableofproducingwaterorhydrologicdatafromanaturalstratumfrombelowthesurfaceoftheearth.Asourceorfacilitycanincludeawell,springorseep,anddrainortunnel(nearlyhorizontalinorientation).Othersources,suchasexcavations,drivendevices,boreholes,ponds,lakes,andsinkholes,thatcanbeshowntobehydrau......
【中国标准分类号】:P13
【国际标准分类号】:13_060_10
【页数】:16P.;A4
【正文语种】:英语