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【英文标准名称】:Informationsecuritymanagement-Specificationforinformationsecuritymanagementsystems
【原文标准名称】:信息安全管理.信息安全管理规范
【标准号】:BS7799-2-1999
【标准状态】:作废
【国别】:英国
【发布日期】:1999-05-15
【实施或试行日期】:1999-05-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:通路;计算机;数据存储保护;数据处理;系统论;管理;维修;合格;情报系统;技术文献;防偷窃措施;记录品(文献);文献;计算机网络;分类系统;计算机技术;政策;信息交流;课程;数据安全;人员
【英文主题词】:
【摘要】:
【中国标准分类号】:A91
【国际标准分类号】:35_020;35_040
【页数】:16P;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforConductingBoreholeGeophysicalLogging-Neutron
【原文标准名称】:地球物理测量钻孔的标准指南.中子
【标准号】:ASTMD6727-2001(2007)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D18.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:钻井;地球物理学;中子
【英文主题词】:boreholegeophysics;neutronlog;neutronporositylog;wellconstruction;welllogging
【摘要】:Anappropriatelydeveloped,documented,andexecutedguideisessentialforthepropercollectionandapplicationofneutronlogs.ThisguideistobeusedinconjunctionwithStandardGuideD5753.Thebenefitsofitsuseincludeimprovingselectionofneutronloggingmethodsandequipment;neutronlogqualityandreliability;usefulnessoftheneutronlogdataforsubsequentdisplayandinterpretation.Thisguideappliestocommonlyusedneutronloggingmethodsforgeotechnicalapplications.Itisessentialthatpersonnel(seeSection8.3.2,StandardGuideD5753)consultup-to-datetextbooksandreportsontheneutrontechnique,application,andinterpretationmethods.1.1Thisguideisfocusedonthegeneralproceduresnecessarytoconductneutronorneutronporosity(hereafterreferredtoasneutron)loggingofboreholes,wells,accesstubes,caissons,orshafts(hereafterreferredtoasboreholes)ascommonlyappliedtogeologic,engineering,ground-waterandenvironmental(hereafterreferredtoasgeotechnical)investigations.Neutronsoilmoisturemeasurementsmadeusingneutronmoisturegauges,areexcluded.Neutronloggingformineralsorpetroleumapplicationsisexcluded,alongwithneutronactivationlogswheregammaspectraldetectorsareusedtocharacterizetheinducedgammaactivityofmineralsexposedtoneutronradiation.1.2Thisguidedefinesaneutronlogasarecordoftherateatwhichthermalandepithermalneutronsarescatteredbacktooneormoredetectorslocatedonaprobeadjacenttoaneutronsource.1.2.1Inductionlogsaretreatedquantitativelyandshouldbeinterpretedwithotherlogsanddatawheneverpossible.1.2.2Neutronlogsarecommonlyusedto:(1)delineatelithology,and(2)indicatethewater-filledporosityofformations(seeFig.1).1.3Thisguideisrestrictedtoneutronloggingwithnuclearcountersconsistingofscintillationdetectors(crystalscoupledwithphotomultipliertubes),ortoHe3-tubedetectorswithorwithoutCdfoilcoversorcoatingstoexcludethermalizedneutrons.1.4Thisguideprovidesanoverviewofneutronloggingincluding:(1)generalprocedures;(2)specificdocumentation;(3)calibrationandstandardization,and(4)logqualityandinterpretation.1.5ToobtainadditionalinformationonneutronlogsseeReferencessectioninthisguide.1.6ThisguideistobeusedinconjunctionwithStandardGuideD5753.1.7Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisguideshouldnotbeusedasasolecriterionforneutronlogginganddoesnotreplaceeducation,experience,andprofessionaljudgment.Neutronloggingproceduresshouldbeadaptedtomeettheneedsofarangeofapplicationsandstatedingeneraltermssothatflexibilityorinnovationarenotsuppressed.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudgedwithoutconsiderationofaproject''smanyuniqueaspects.ThewordstandardinthetitleofthisdocumentmeansthatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.1.8ThegeotechnicalindustryusesEnglishorSIunits.Theneutronlogistypicallyrecordedinunitsofcountspersecond(cps)orinpercentporosity.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.Theuseofradioactivesourcesin......
【中国标准分类号】:A44
【国际标准分类号】:07_060
【页数】:9P.;A4
【正文语种】: