1、Designation:E189215Standard Guide forPreparing Characterization Plans for DecommissioningNuclear Facilities1This standard is issued under the fixed designation E1892;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last re
2、vision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This standard guide applies to developing nuclear facil-ity characterization plans to define the type,magnitude,location,and exten
3、t of radiological and chemical contamina-tion within the facility to allow decommissioning planning.This guide amplifies guidance regarding facility characteriza-tion indicated in ASTM Standard E1281 on Nuclear FacilityDecommissioning Plans.This guide does not address themethodology necessary to rel
4、ease a facility or site for uncon-ditional use.This guide specifically addresses:1.1.1 the data quality objective for characterization as aninitial step in decommissioning planning.1.1.2 sampling methods,1.1.3 the logic involved(statistical design)to ensure ad-equate characterization for decommissio
5、ning purposes;and1.1.4 essential documentation of the characterization infor-mation.1.2 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and de
6、termine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E1167 Guide for Radiation Protection Program for Decom-missioning OperationsE1281 Guide for Nuclear Facility Decommissioning Plans2.2 ANSI Standard:3ANSI N323AB American National Standard for
7、RadiationProtection Instrumentation Test and Calibration,PortableSurvey Instruments3.Terminology3.1 Definitions:3.1.1 Characterization,nA systematic identification ofthe types,quantities,forms,and locations of contaminationwithin a facility.3.1.2 Decommission,vtTo remove safely from service andto re
8、duce residual contamination to a level that permitstermination of any applicable licenses and release of theproperty for unrestricted use.3.1.3 Decontamination,nActivities employed to reducethe levels of(radioactive or hazardous chemical)contamina-tion in or on structures,equipment,materials and per
9、sonnel.3.1.4 Facility,nAs applied to a decommissioning projectincludes the structure and the soil around and under thestructure to an agreed upon distance.4.Requirements4.1 General:4.1.1 As an initial part of facility decommissioningplanning,a characterization plan is developed to define thenature,e
10、xtent and location of contaminants,determine sam-pling locations and protocols,determine quality assuranceobjectives for characterization,and define documentation re-quirements.The characterization plan considers the historicuse of the facility to identify the likely contaminants due to theradiologi
11、cal process involved,the chemicals introduced duringthe processing,and any resulting contaminants that may beformed during the processing.Records or recounting of anyprocess upsets or spills that may have occurred during theoperating life of the facility should be considered to help1This guide is un
12、der the jurisdiction of ASTM Committee E10 on NuclearTechnology and Applicationsand is the direct responsibility of SubcommitteeE10.03 on Radiological Protection for Decontamination and Decommissioning ofNuclear Facilities and Components.Current edition approved Jan.1,2015.Published January 2015.Ori
13、ginallyapproved in 1997.Last previous edition approved in 2009 as E1892-09.DOI:10.1520/E1892-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Su
14、mmary page onthe ASTM website.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 determine the likely location of contam
15、inants.In addition toexamining process records,interviews should be conductedwith personnel knowledgeable in the past operation of thefacility to identify conditions that may not have been recorded.During this pre-characterization data collection phase,anapproach for the characterization plan is dev
16、eloped.4.2 Methodology:4.2.1 The actual characterization of a facility is an iterativeprocess that involves initial sampling according to the charac-terization plan,field management(such as labeling,packaging,storing,and transport)of the samples,laboratory analysis,conformance to the data quality objectives(DQOs),and thenidentifying any additional sampling required,refining theDQOs,and modifying the characterization plan accordingly.The final product of the facility characterization is a documen
