基本信息
| 标准名称： | 碳素结构钢和低合金结构钢热轧冷钢板及钢带 |
| 英文名称： | Hot-rolled plain carbon and low alloy structural steel sheets and strips |
| 中标分类： |
冶金 >>
钢铁产品 >>
钢板、钢带 |
| ICS分类： |
冶金 >>
钢铁产品 >>
扁平钢和半成品
|
| 替代情况： | 替代GB 912-1982;被GB 912-2008代替 |
| 发布部门： | 中国钢铁工业协会 |
| 发布日期： | 1989-03-16 |
| 实施日期： | 1990-01-01 |
| 首发日期： | 1966-04-18 |
| 作废日期： | 2009-10-01 |
| 主管部门： | 中国钢铁工业协会 |
| 提出单位： | 治金工业部情报标准研究所 |
| 归口单位： | 全国钢标准化技术委员会 |
| 起草单位： | 本溪钢铁公司、治金工业部情报标准研究总所 |
| 起草人： | 高佐忠、唐一凡 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 1990-01-01 |
| 页数： | 3页 |
适用范围
本标准规定了碳素结构钢和低和金结构钢热轧薄钢板及钢带尺寸，外形，技术要求，试验方法，检验规则等。
本标准适用于厚度不大于4mm的碳素结构钢和低和金结构钢热扎钢板及钢带。
前言
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目录
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引用标准
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所属分类： 冶金 钢铁产品 钢板 钢带 冶金 钢铁产品 扁平钢和半成品
【英文标准名称】:StandardGuideforIn-PlantPerformanceEvaluationofAutomaticPedestrianSNMMonitors
【原文标准名称】:行人区自动SNM监视器的内部性能评定标准指南
【标准号】:ASTMC993-1997(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】:(Guide)
【标准水平】:()
【中文主题词】:监视器;行人区
【英文主题词】:gammaradiation;materialcontrolandaccountability;neutronradiation;nuclearmaterialsmanagement;radiationdetectors;radiationmonitors;safeguards;security
【摘要】:SNMmonitorsareaneffectiveandunobtrusivemeanstosearchpedestriansforconcealedSNM.FacilitysecurityplansuseSNMmonitorsasonemeanstopreventtheftorunauthorizedremovalofdesignatedquantitiesofSNMfromaccessareas.Dailytestingofthemonitorswithradioactivesourcesguaranteesonlythecontinuityofalarmcircuits.Thein-plantevaluationisawaytoestimatewhetheranacceptablelevelofperformancefordetectingchosenquantitiesofSNMisobtainedfromamonitorinroutineserviceorafterrepairorcalibration.Theevaluationverifiesacceptableperformanceordisclosesfaultsinhardwareorcalibration.Theevaluationusestestsourcesshieldedonlybynormalsourcefiltersandencapsulationand,perhaps,byinterveningportionsofthetransportingindividualrsquo;body.Thetransportingindividualalsoprovidesanotherformofshieldingwhenthebodyinterceptsenvironmentalradiationthatwouldotherwisereachthemonitorrsquo;detectors.Hence,transportingindividualsplayanimportantroleintheevaluationbyreproducinganimportantconditionofroutineoperation.Theevaluation,whenappliedasaroutine-operationalevaluation,providesevidenceforcontinuedcompliancewiththeperformancegoalsofsecurityplansorregulatoryguidance.Itistheresponsibilityoftheusersofthisevaluationtocoordinateitsapplicationwiththeappropriateregulatoryauthoritysothatmutuallyagreeableevaluationfrequency,testsources,wayoftransportingthetestsource,numberoftest-sourcepassages,andnuisance-alarm-rategoalsareused.Agreedwrittenproceduresshouldbeusedtodocumentthecoordination.1.1ThisguideisaffiliatedwithGuideC1112onspecialnuclearmaterial(SNM)monitors,GuideC1169onlaboratoryperformanceevaluation,andGuideC1189oncalibratingpedestrianSNMmonitors.Thisguidetoin-plantperformanceevaluationisacomparativelyrapidwaytoverifywhetherapedestrianSNMmonitorperformsasexpectedfordetectingSNMorSNM-liketestsources.1.1.1In-plantperformanceevaluationshouldnotbeconfusedwiththesimpledailyfunctionaltestrecommendedinGuideC1112.In-plantperformanceevaluationtakesplacelessoftenthandailytests,usuallyatintervalsrangingfromweeklytoonceeverythreemonths.In-plantevaluationsarealsomoreextensivethandailytestsandmayexaminebothamonitor''snuisancealarmrecordanditsdetectionsensitivityforaparticularSNMoralternativetestsource.1.1.2In-plantperformanceevaluationalsoshouldnotbeconfusedwithlaboratoryperformanceevaluation.In-plantevaluationiscomparativelyrapid,takesplaceinthemonitor''sroutineoperatingenvironment,anditsresultsarelimitedtoverifyingthatamonitorisoperatingasexpected,ortodisclosingthatitisnotandneedsrepairorrecalibration.1.2In-plantevaluationisonepartofaprogramtokeepSNMmonitorsinproperoperatingcondition.Everymonitorinafacilityisevaluated.Therearetwoapplicationsofthein-plantevaluation:oneusedduringroutineoperationandanotherusedaftercalibration.1.2.1RoutineOperationalEvaluation-Inthisformoftheevaluation,nuisancealarmrecordsforeachmonitorareexamined,andeachmonitor''sdetectionsensitivityisestimatedduringroutineoperation.Theroutineoperationalevaluationisintendedtoreassuretheplantoperator,andhisregulatoryagency,thatthemonitorisperformingasexpectedduringroutineoperation.Thisevaluationtakesplacewithoutpretesting,recalibration,orotheractivitythatmightchangethemonitor''soperation,andtheevaluationsimulatesthenormaluseofthemonitor.1.2.2Post-CalibrationEvaluation-Thisformoftheevaluationispartofamaintenanceprocedure;itshouldalwaysfollowscheduled......
【中国标准分类号】:M73
【国际标准分类号】:93_080_30
【页数】:7P.;A4
【正文语种】: