【英文标准名称】:StandardPracticeforPerformanceEvaluationofIn-PlantWalk-ThroughMetalDetectors
【原文标准名称】:内置穿过式金属检测器的性能评定的标准规程
【标准号】:ASTMC1309-1997(2003)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:C26.12
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:探测敏感性验证;安全材料;金属探测器;探测器;实施规程;设备性能;通过金属探测器;性能评定;使用;性能
【英文主题词】:metaldetectors;detectionsensitivitytest(DST);detectionsensitivityverificationtest(DSVT);clean-tester;criticalorientation
【摘要】:Walk-throughmetaldetectorsareaneffectiveandunobtrusivemeansforsearchingforconcealedmetallicweaponsandSNM(specialnuclearmaterial)shieldingmaterial.Thedetectorsaregenerallyappliedtopreventtheunauthorizedentryofweaponsintofacilities,andtheftorunauthorizedremovalofSNM.Dailyfunctionaltestingofmetaldetectorsshowsthattheyareoperatingandwillproducethecorrectalarmsignal;thesignificantuseoflessfrequentin-plantevaluationsprovidesdatafromwhichtodetermineifdetectorsareoperatingatexpectedperformancelevels.Thispracticeprovidesasystemofproceduresforevaluatingthedetectionperformanceofwalk-throughmetaldetectors.Theproceduresspecifydatatoberecordedandusedforestablishing,tracking,andauditingmetaldetectorperformanceandoperation.Thispracticesuggestsdocumentationformaintainingperformancerecords.AppendixX4providesexamplesofformsforrecordingandtrackingdetectoroperationandperformancetesting.1.1Thispracticeisoneofseveral(seeAppendixX1)developedtoassistoperatorsofnuclearfacilitieswithmeetingthemetaldetectionperformancerequirementssetbyregulatoryauthorities.1.2Thispracticeconsistsoffourproceduresusefulforevaluatingthein-plantperformanceofwalk-throughmetaldetectors(seeFig.1).1.2.1Twooftheproceduresprovidedataforevaluatingprobabilityofdetection.Theseproceduresusebinomialdata(alarm/notalarm).1.2.1.1Thedetectionsensitivitytest(DST)178;istheinitialprocedureinthedetectionprobabilityevaluationseries.Itisusedtoestablishtheprobabilityofdetectionimmediatelyafterthedetectorhasbeenadjustedtoitsoperationalsensitivitysetting.1.2.1.2Thedetectionsensitivityverificationtest(DSVT)178;procedureperiodicallyprovidesdataforevaluationofcontinuingdetectionperformance.1.2.2Thethirdprocedureisa"functionaltest."Itisusedroutinelytoverifythatametaldetectorisoperatingandrespondswiththecorrectaudioandvisualsignalswhensubjectedtoaconditionthatshouldcauseanalarm.1.2.3Thefourthprocedureisusedtoverifythatalarmsgeneratedduringdetectionsensitivitytestingwerelikelytheresultofthedetectionofmetalandnotcausedbyoutsideinterferencesortheperturbationofthedetectionfieldbythetester''sbodymass.1.2.3.1Thisprocedurealsocanbeusedtoestablishaprobabilityofoccurrenceforfalsealarms,forexample,20testpassesbyaclean-testerresultinginnoalarmsindicatesafalsealarmprobabilityoflessthan0.15at95%confidence.Thisprocedureisoptionalunlessrequiredbytheregulatoryauthority.1.3Thispracticedoesnotsettestobjectspecifications.Thespecificationsshouldbeissuedbytheregulatoryauthority.1.4Thispracticeisintendedneithertosetperformancelevelsnortolimitorconstraintechnologies.1.5Thispracticedoesnotaddresssafetyoroperationalissuesassociatedwiththeuseofwalk-throughmetaldetectors.
【中国标准分类号】:N13
【国际标准分类号】:13_320;27_120_20
【页数】:15P.;A4
【正文语种】: