ASTM_E_2303_-_11.pdf

Designation:E2303 11An American National StandardStandard Guide forAbsorbed-Dose Mapping in Radiation Processing Facilities1This standard is issued under the fixed designation E2303;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 document provides guidance in determiningabsorbed-dose distributions(mapping)in products,materialsor substances irradiated in gamma,X-ray(bremsstrahlung)andelectron beam facilities.NOTE1For irradiation of food and the radiation sterilization of healthcare products,other specific ISO and ISO/ASTM standards containingdose mapping requirements exist.For food irradiation,see ISO/ASTM51204,Practice for Dosimetry in Gamma Irradiation Facilities for FoodProcessing and ISO/ASTM 51431,Practice for Dosimetry in ElectronBeam and X-Ray(Bremsstrahlung)Irradiation Facilities for Food Pro-cessing.For the radiation sterilization of health care products,seeISO 11137-1,Sterilization of Health Care Products Radiation Part 1:Requirements for Development,Validation and Routine Control of aSterilization Process for Medical Devices.In those areas covered byISO 11137-1,that standard takes precedence.ISO/ASTM 51608,Practicefor Dosimetry in an X-ray(Bremsstrahlung)Facility for RadiationProcessing,ISO/ASTM 51649,Practice for Dosimetry in an ElectronBeam Facility for Radiation Processing at Energies between 300 keV and25 Mev,ISO/ASTM 51702,Practice for Dosimetry in a Gamma Irradia-tion Facility for Radiation Processing,and ISO/ASTM 51818,Practice forDosimetry in an Electron Beam Facility for Radiation Processing atEnergies Between 80 and 300 KeV also contain dose mapping require-ments.1.2 This guide is one of a set of standards that providesrecommendations for properly implementing dosimetry inradiation processing.it is intended to be read in conjunctionwith ASTM Practice E2628.1.3 Methods of analyzing the dose map data are described.Examples are provided of statistical methods that may be usedto analyze dose map data.1.4 Dose mapping for bulk flow processing and fluidstreams is not discussed.1.5 Dosimetry is only one component of a total qualityprogram for an irradiation facility.Other controls besidesdosimetry may be required for specific applications such asmedical device sterilization and food preservation.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 requirements prior to use.2.Referenced Documents2.1 ASTM Standards:2E170 Terminology Relating to Radiation Measurements andDosimetryE178 Practice for Dealing With Outlying ObservationsE2232 Guide for Selection and Use of Mathematical Meth-ods for CalculatingAbsorbed Dose in Radiation ProcessingApplicationsE2628 Practice for Dosimetry in Radiation Processing2.2ISO/ASTM Standards:2ISO/ASTM 51204 Practice for Dosimetry in Gamma Irra-diation Facilities for Food ProcessingISO/ASTM 51261 Guide for Selection and Calibration ofDosimetry Systems for Radiation ProcessingISO/ASTM 51431 Practice for Dosimetry in Electron Beamand X-Ray(Bremsstrahlung)Irradiation Facilities forFood ProcessingISO/ASTM 51608 Practice for Dosimetry in an X-ray(Bremsstrahlung)Facility for Radiation ProcessingISO/ASTM 51649 Practice for Dosimetry in an ElectronBeam Facility for Radiation Processing at Energies be-tween 300 keV and 25 MeVISO/ASTM 51702 Practice for Dosimetry in a GammaIrradiation Facility for Radiation ProcessingISO/ASTM 51707 Guide for Estimating Uncertainties inDosimetry for Radiation ProcessingISO/ASTM 51818 Practice for Dosimetry in an ElectronBeam Facility for Radiation Processing at Energies be-tween 80 and 300 keV2.3International Commission on Radiation Units andMeasurements Reports:3ICRU Report 60 Fundamental Quantities and Units forIonizing Radiation1This guide is under the jurisdiction of ASTM Committee E10 on NuclearTechnology and Applications and is the direct responsibility of SubcommitteeE10.01 on Radiation Processing:Dosimetry and Applications.Current edition approved July 1,2011.Published August 2011.Originallyapproved in 2003.Last previous edition approved in 2003 as E2303-03.DOI:10.1520/E2303-11.2For 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.3Available from International Commission on Radiation Units and Measure-ments,7910 Woodmont Ave.,Suite 800,Bethesda,MD 20814.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.Copyright ASTM International