【英文标准名称】:Aerospacequalifiedelectroniccomponent(AQEC)-Microcircuits
【原文标准名称】:航空航天合格电子元件(AQEC).微电路
【标准号】:BSDDIEC/TS62564-1-2009
【标准状态】:作废
【国别】:英国
【发布日期】:2009-07-31
【实施或试行日期】:2009-07-31
【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】:航空工程;航空航天运输;航空运输;定义(术语);电气设备;电子工程;电子设备及元件;电子产品;集成电路;微型电路;微型开关;质量;质量保证;半导体;规范(验收)
【英文主题词】:Aeronauticalengineering;Aerospacetransport;Airtransport;Definitions;Electricalequipment;Electronicengineering;Electronicequipmentandcomponents;Electronicproducts;Integratedcircuits;Microcircuits;Microswitches;Quality;Qualityassurance;Semiconductors;Specification(approval)
【摘要】:
【中国标准分类号】:V40
【国际标准分类号】:49_060
【页数】:24P;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforDirectPushInstallationofPrepackedScreenMonitoringWellsinUnconsolidatedAquifers
【原文标准名称】:未固结含水土层里预制的滤网式监测井的直推式安装的标准实施规程
【标准号】:ASTMD6725-2004(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:aquifer;directpush;groundwater;monitoringwell;prepackedscreen;waterquality;Siteidentification/investigation/selection;Waterqualitymonitoring;Aquifers;Directpushinstallation;Ground-watermonitoring/sampling;Installation--groundwater/s
【摘要】:Thispracticeisintendedtoprovidetheuserwithinformationontheappropriatemethodsandproceduresforinstallingprepackedscreenmonitoringwellsbydirectpushmethods.Themonitoringwellsmaybeusedtoobtainrepresentativewaterqualitysamplesforaqueousphasecontaminantsorotheranalytesofinterest,eitherorganicorinorganic(Krametal.2000,McCall2000,McCalletal.1997).Themonitoringwellsmayalsobeusedtoobtaininformationonthepotentiometricsurfaceofthelocalaquiferandpropertiesoftheformationsuchashydraulicconductivityortransmissivity.Useofdirectpushmethodstoinstallmonitoringwellscansignificantlyreducetheamountofpotentiallyhazardousdrillcuttingsgeneratedduringwellinstallationatcontaminatedsites.Thismaysignificantlyreducecostofanenvironmentalsiteinvestigationandgroundwatermonitoringprogram.Minimizinggenerationofhazardouswastealsoreducestheexposurehazardstositeworkers,localresidents,andtheenvironment.Directpushmethodsformonitoringwellinstallationarelimitedtouseinunconsolidatedformationssuchasalluvial/streamsediments,glacialdeposits,andbeachtypesediments.Directpushmethodsaregenerallysuccessfulatpenetratingclays,silts,sandsandsomegravel.Depositssuchassoilswiththickcalichelayers,orglacialtillswithlargecobblesorbouldersmaybedifficultorimpossibletopenetratetothedesireddepth.Directpushmethodsarenotdesignedforpenetrationofconsolidatedbedrocksuchaslimestone,graniteorgneiss.1.1Thispracticeisbasedonrecognizedmethodsbywhichdirectpushmonitoringwellsmaybedesignedandinstalledforthepurposeofdetectingthepresenceorabsenceofacontaminant,andcollectingrepresentativegroundwaterqualitydata.Thedesignstandardsandinstallationprocedureshereinareapplicabletobothdetectionandassessmentmonitoringprogramsforfacilities.1.2Therecommendedmonitoringwelldesign,aspresentedinthispractice,isbasedontheassumptionthattheobjectiveoftheprogramistoobtainrepresentativegroundwaterinformationandwaterqualitysamplesfromaquifers.Monitoringwellsconstructedfollowingthispracticeshouldproducerelativelyturbidity-freesamplesforgranularaquifermaterialsrangingfromgravelstosiltysand.Stratahavinggrainsizessmallerthantherecommendeddesignforthesmallestdiameterfilterpackmaterialsshouldbemonitoredbyalternativemonitoringwelldesignswhicharenotaddressedinthispractice.1.3Directpushproceduresarenotapplicableformonitoringwellinstallationunderallgeologicandsoilconditions(forexample,installationinbedrock).Otherrotarydrillingproceduresareavailableforpenetrationoftheseconsolidatedmaterialsforwellconstructionpurposes(GuideD5092).Additionally,undersomegeologicconditionsitmaybeappropriatetoinstallmonitoringwellswithoutafilterpack(EPA1991).GuideD6724maybereferredtoforadditionalinformationontheseandothermethodsforthedirectpushinstallationofgroundwatermonitoringwells.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Thevaluesinparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.6Thispracticeoffersasetofinstructionsforperformingoneorm......
【中国标准分类号】:P13
【国际标准分类号】:13_060_10
【页数】:15P.;A4
【正文语种】:英语