ASTM_E_1893_-_15.pdf

Designation:E189315Standard Guide forSelection and Use of Portable Radiological SurveyInstruments for Performing In Situ RadiologicalAssessments to Support Unrestricted Release from FurtherRegulatory Controls1This standard is issued under the fixed designation E1893;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.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 provides recommendations on the selec-tion and use of portable instrumentation that is responsive tolevels of radiation that are close to natural background.Theseinstruments are employed to detect the presence of residualradioactivity that is at,or below,the criteria for release fromfurther regulatory control of a component to be salvaged orreused,or a surface remaining at the conclusion of decontami-nation and/or decommissioning.1.2 The choice of these instruments,their operating charac-teristics and the protocols by which they are calibrated andused will provide adequate assurance that the measurements ofthe residual radioactivity meet the requirements established forrelease from further regulatory control.1.3 This standard is applicable to the in situ measurement ofradioactive emissions that include:1.3.1 alpha1.3.2 beta(electrons)1.3.3 gamma1.3.4 characteristic x-rays1.3.5 The measurement of neutron emissions is not includedas part of this standard.1.4 This standard dose not address instrumentation used toassess residual radioactivity levels contained in air samples,surface contamination smears,bulk material removals,orhalf/whole body personnel monitors.1.5 This standard does not address records retention require-ments for calibration,maintenance,etc.as these topics areconsidered in several of the referenced documents.1.6 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.2.Referenced Documents2.1 ASTM Standards:2C998 Practice for Sampling Surface Soil for RadionuclidesC999 Practice for Soil Sample Preparation for the Determi-nation of RadionuclidesC1000 Test Method for Radiochemical Determination ofUranium Isotopes in Soil by Alpha SpectrometryC1133 Test Method for Nondestructive Assay of SpecialNuclear Material in Low-Density Scrap and Waste bySegmented Passive Gamma-Ray ScanningE170 Terminology Relating to Radiation Measurements andDosimetryE181 Test Methods for Detector Calibration and Analysis ofRadionuclidesC1215 Guide for Preparing and Interpreting Precision andBias Statements in Test Method Standards Used in theNuclear Industry2.2 ANSI Standards:ANSI N323AB American National Standard for RadiationProtection Instrumentation Test and Calibration,PortableSurvey Instrumentation3ANSI N42.17A American National Standard for Perfor-mance Specifications for Health Physics Instrumentation-Portable Instrumentation for Use in Normal Environmen-tal Conditions3ANSI N42.17C American National Standard for Perfor-mance Specifications for Health Physics Instrumentation-Portable Instrumentation for Use in Extreme Environmen-tal Conditions31This guide is under the jurisdiction of ASTM Committee E10 on NuclearTechnology and Applications and is the direct responsibility of SubcommitteeE10.03on Radiological Protection for Decontamination and Decommissioning ofNuclear Facilities and Components.Current edition approved Feb.1,2015.Published April 2009.Originallyapproved in 1997.Last previous edition approved in 2008 as E1893-08a.DOI:10.1520/E1893-15.2For 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 Summary 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 2.3 National Council on Radiation Protection and Measure-ments:NCRP Report No.57 Instrumentation and Monitoring Meth-ods for Radiation Protection,National Council on Radia-tion Protection and Measurements,May 19784NCRP Report No.58 A Handbook of Radioactivity Mea-surement Procedures,National Council on Radiation Pro-tection and Measurements,2nd Ed.February 19854NCRP Report No.112 Calibration of Survey InstrumentsUsed in Radiation Protection for the Assessment ofIonizing Radiation Fields and Radioactive SurfaceContamination,National Council on Radiation Protectionand Measurements,December 199142.4 International Organization for Standardization(ISO):ISO-4037-4:2004 X and Gamma Reference Radiations forCalibrating Dosimeters and Dose-rate Meters and forDetermining their Response as a Function of PhotonEnergy,International Organization for Standardization,19795ISO-6980-2:2005 Nuclear