ASTM E1893-2008a 为确保退役(退出使用)进行现场辐射评定所采用的便携式辐射测量仪的选择和使用标准指南

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【英文标准名称】:StandardGuideforSelectionandUseofPortableRadiologicalSurveyInstrumentsforPerformingInSituRadiologicalAssessmentstoSupportUnrestrictedReleasefromFurtherRegulatoryControls
【原文标准名称】:为确保退役(退出使用)进行现场辐射评定所采用的便携式辐射测量仪的选择和使用标准指南
【标准号】:ASTME1893-2008a
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E10.03
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:Decommissioningoperations;Decontamination;In-situinspection/analysis;Portableradiologicalsurvey;Radiologicalexamination
【摘要】:Thepurposeofthisstandardistoprovidetheuserinformationandguidanceforselectingandusinginstrumentationthatwillprovidemeasurementresultsthatcanbecomparedtocriteriaforunrestricteduse.Useofthisstandardwillprovidegreaterassurancethatthemeasurementsobtainedwillbetechnicallyandadministrativelysufficientformakingdecisionsregardingcompletionofdecontaminationand/ordemolition/removalactivities.Useofthisstandardwillprovidegreaterassurancethatthemeasurementsobtainedwillbetechnicallyandadministrativelysufficienttomeetallapplicableregulatoryrequirementsforunrestrictedreleaseofacomponentforrecycleorreuse,orforunrestrictedreleaseofaremainingsurfaceorarea.1.1Thisstandardprovidesrecommendationsontheselectionanduseofportableinstrumentationthatisresponsivetolevelsofradiationthatareclosetonaturalbackground.Theseinstrumentsareemployedtodetectthepresenceofresidualradioactivitythatisat,orbelow,thecriteriaforreleasefromfurtherregulatorycontrolofacomponenttobesalvagedorreused,orasurfaceremainingattheconclusionofdecontaminationand/ordecommissioning.1.2Thechoiceoftheseinstruments,theiroperatingcharacteristicsandtheprotocolsbywhichtheyarecalibratedandusedwillprovideadequateassurancethatthemeasurementsoftheresidualradioactivitymeettherequirementsestablishedforreleasefromfurtherregulatorycontrol.1.3Thisstandardisapplicabletotheinsitumeasurementofradioactiveemissionsthatinclude:1.3.1alpha1.3.2beta(electrons)1.3.3gamma1.3.4characteristicx-rays1.3.5Themeasurementofneutronemissionsisnotincludedaspartofthisstandard.1.4Thisstandarddosenotaddressinstrumentationusedtoassessresidualradioactivitylevelscontainedinairsamples,surfacecontaminationsmears,bulkmaterialremovals,orhalf/wholebodypersonnelmonitors.1.5Thisstandarddoesnotaddressrecordsretentionrequirementsforcalibration,maintenance,etc.asthesetopicsareconsideredinseveralofthereferenceddocuments.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.
【中国标准分类号】:F84
【国际标准分类号】:17_240
【页数】:28P.;A4
【正文语种】:英语