STM_51900-09.pdf

ISO/ASTM 51900:2009(E)Standard Guide forDosimetry in Radiation Research on Food and AgriculturalProducts1This standard is issued under the fixed designation ISO/ASTM 51900;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 guide covers the minimum requirements for dosim-etry needed to conduct research on the effect of radiation onfood and agricultural products.Such research includes estab-lishment of the quantitative relationship between absorbeddose and the relevant effects in these products.This guide alsodescribes the overall need for dosimetry in such research,andin reporting of the results.Dosimetry must be considered as anintegral part of the experiment.NOTE1The Codex Alimentarius Commission has developed aninternational General Standard and a Code of Practice that address theapplication of ionizing radiation to the treatment of foods and that stronglyemphasize the role of dosimetry for ensuring that irradiation will beproperly performed(1).2NOTE2This guide includes tutorial information in the form of Notes.Researchers should also refer to the references provided at the end of thestandard,and other applicable scientific literature,to assist in theexperimental methodology as applied to dosimetry(2-10).1.2 This guide covers research conducted using the follow-ing types of ionizing radiation:gamma radiation,X-ray(bremsstrahlung),and electron beams.1.3 This guide describes dosimetry requirements for estab-lishing the experimental method and for routine experiments.Itdoes not include dosimetry requirements for installation quali-fication or operational qualification of the irradiation facility.These subjects are treated in ISO/ASTM Practices 51204,51431,51608,51649,and 51702.1.4 This guide is not intended to limit the flexibility of theexperimenter in the determination of the experimental meth-odology.The purpose of the guide is to ensure that the radiationsource and experimental methodology are chosen such that theresults of the experiment will be useful and understandable toother scientists and regulatory agencies.1.5 The overall uncertainty in the absorbed-dose measure-ment and the inherent absorbed-dose variation within theirradiated sample should be taken into account(see ISO/ASTMGuide 51707).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:3E170 Terminology Relating to Radiation Measurements andDosimetryE925 Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Bandwidthdoes not Exceed 2 nmE1026 Practice for Using the Fricke Dosimetry SystemE2232 Guide for Selection and Use of Mathematical Meth-ods for Calculating Absorbed Dose in Radiation Process-ing ApplicationsE2303 Guide for Absorbed-Dose Mapping in RadiationProcessing FacilitiesE2304 Practice for Use of a LiF Photo-Fluorescent FilmDosimetry SystemE2381 Guide for Dosimetry In Radiation Processing ofFluidized Beds and Fluid StreamsF1355 Guide for Irradiation of FreshAgricultural Produce asa Phytosanitary TreatmentF1356 Practice for Irradiation of Fresh and Frozen Red Meatand Poultry to Control Pathogens and Other Microorgan-ismsF1640 Guide for Selection and Use of Packaging Materialsfor Foods to Be IrradiatedF1736 Guide for Irradiation of Finfish and Aquatic Inverte-brates Used as Food to Control Pathogens and SpoilageMicroorganismsF1885 Guide for Irradiation of Dried Spices,Herbs,and1This guide 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 June 18,2008.Published June 2009.Originallypublished asASTM E190097.Last previousASTM edition E190097.The presentInternational Standard ISO/ASTM 51900:2009(E)replaces E190097 and is amajor revision of the last previous edition ISO/ASTM 51900:2002(E).2The boldface numbers in parentheses refer to the bibliography at the end of thisguide.3For 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.ISO/ASTM International 2015 All rights reserved1 Vegetable Seasonings to Control Pathogens and OtherMicroorganisms2.2 ISO/ASTM Standards:351204 Practice for Dosimetry in Gamma Irradiation Facili-ties for Food Processing51205 Practice for Use of a Ceric-Cerous Sulfate DosimetrySystem51261 Guide for Selection and Calibration of DosimetrySystems for Radiation Processing51275 Practice for Use of a Radiochromic Film DosimetrySystem51276 Practice f