STM_52116-13.pdf

ISO/ASTM 52116:2013An American National StandardStandard Practice forDosimetry for a Self-Contained Dry-Storage GammaIrradiator1This standard is issued under the fixed designation ISO/ASTM 52116;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.1.Scope1.1 This practice outlines dosimetric procedures to be fol-lowed with self-contained dry-storage gamma irradiators.Forirradiators used for routine processing,procedures are given toensure that product processed will receive absorbed doseswithin prescribed limits.1.2 This practice covers dosimetry in the use of dry-storagegamma irradiators,namely self-contained dry-storage137Cs or60Co irradiators(shielded freestanding irradiators).It does notcover underwater pool sources,panoramic gamma sources,nordoes it cover self-contained bremsstrahlung X-ray units.1.3 The absorbed-dose range for the use of the dry-storageself-contained gamma irradiators covered by this practice istypically 1 to 105Gy,depending on the application.Theabsorbed-dose rate range typically is from 102to 103Gy/min.1.4 For irradiators supplied for specific applications,spe-cific ISO/ASTM or ASTM practices and guides providedosimetric procedures for the application.For proceduresspecific to dosimetry in blood irradiation,see ISO/ASTMPractice 51939.For procedures specific to dosimetry in radia-tion research on food and agricultural products,see ISO/ASTMPractice 51900.For procedures specific to radiation hardnesstesting,see ASTM Practice E1249.For procedures specific tothe dosimetry in the irradiation of insects for sterile releaseprograms,see ISO/ASTM Guide 51940.In those cases coveredby ISO/ASTM 51939,51900,51940,or ASTM E1249,thosestandards take precedence.1.5 This document is one of a set of standards that providesrecommendations for properly implementing and utilizingdosimetry in radiation processing.It is intended to be read inconjunction with ASTM E2628,“Practice for Dosimetry inRadiation Processing”.1.6 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 determine the applica-bility of regulatory limitations prior to use.2.Referenced documents2.1 ASTM Standards:2E170 Terminology Relating to Radiation Measurements andDosimetryE1249 Practice for Minimizing Dosimetry Errors in Radia-tion Hardness Testing of Silicon Electronic Devices UsingCo-60 SourcesE2628 Practice for Dosimetry in Radiation ProcessingE2701 Guide for Performance Characterization of Dosim-eters and Dosimetry Systems for Use in Radiation Process-ing2.2ISO/ASTM Standards:251261 Practice for Calibration of Routine Dosimetry Sys-tems for Radiation Processing51539 Guide for Use of Radiation-Sensitive Indicators51707 Guide for Estimating Uncertainties in Dosimetry forRadiation Processing51900 Guide for Dosimetry in Radiation Research on Foodand Agricultural Products51939 Practice for Blood Irradiation Dosimetry51940 Guide for Dosimetry for Sterile Insects ReleasePrograms2.3International Commission on Radiation Units andMeasurements(ICRU)Reports:3ICRU 85a Fundamental Quantities and Units for IonizingRadiation2.4ANSI Standards:4ANSI/HPS N43.7 Safe Design and Use of Self-Contained,Dry Source Storage Gamma Irradiators(Category I)2.5Joint Committee for Guides in Metrology(JCGM)Reports:JCGM 100:2008,GUM 1995 with minor corrections,Evaluation of measurement data Guide to the Expres-sion of Uncertainty in Measurement51This practice is under the jurisdiction of ASTM Committee E61 on RadiationProcessing and is the direct responsibility of Subcommittee E61.04 on SpecialtyApplication,and is also under the jurisdiction of ISO/TC 85/WG 3.Current edition approved by Aug.16,2012.Published April 2013.Originallypublished as ASTM E 211600.Last previous edition ASTM E 211600.Thepresent International Standard ISO/ASTM 52116:2013(E)replaces E 2116-00 and isa major revision of the last previous edition ISO/ASTM 52116:2002:(E).2For referenced ASTM and ISO/ASTM standards,visit the ASTM website,www.astm.org,or contact ASTM Customer Service at serviceastm.org.ForAnnual Book of ASTM Standards volume information,refer to the standardsDocument Summary page on the ASTM website.3International Commission on Radiation Units and Measurements(ICRU),7910Woodmont Ave.,Suite 800,Bethesda,MD 20810,U.S.A.4Available from the Health Physics Society,http:/hps.org.5Document produced by Working Group 1 of the Joint Committee for Guides inMetrology(JCGM/WG 1).Available free of charge at the BIPM website(http:/www.bipm.org).1 ISO/ASTM International 2013 All rights reservedCopyright ASTM International Provided by IHS under license with ASTM Licensee=University of Michigan/5967164002 Not for Resale,08/03/2013 19:38:47 MDTNo reproduction or networking permitted without license from IHS-,-,-JCGM 100:2008,VIM International vocabulary of metrol