【英文标准名称】:StandardPracticeforDosimetryinGammaIrradiationFacilitiesforFoodProcessing
【原文标准名称】:食品加工用Υ辐照设备的剂量测定的标准实施规程
【标准号】:ASTMISO/ASTM51204-2004
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E10.01
【标准类型】:(ISO/ASTM)
【标准水平】:()
【中文主题词】:
【英文主题词】:absorbeddose;cobalt-60;cesium-137;dosemapping;dosimeter;dosimetry;foodirradiation;foodprocessing;gamma;installationqualification;ionizingradiation;irradiatedfood;irradiation;operationalqualification;performancequalification;radiati
【摘要】:4.1Foodproductsmaybetreatedwithionizingradiation,suchasgamma-raysfrom60Coor137Cssources,fornumerouspurposes,includingcontrolofparasitesandpathogenicmicroorganisms,insectdisinfestation,growthandmaturationinhibition,andshelf-lifeextension.Foodirradiationspecificationsalmostalwaysincludeaminimumormaximumlimitofabsorbeddose,sometimesboth:aminimumlimitissettoensurethattheintendedbeneficialeffectisachievedandamaximumlimitissetforthepurposeofavoidingproductorpackagingdegradation.Foragivenapplication,oneorbothofthesevaluesmaybeprescribedbygovernmentregulationsthathavebeenestablishedonthebasisofscientificdata.Therefore,priortotheirradiationofthefoodproduct,itisnecessarytodeterminethecapabilityofanirradiationfacilitytodelivertheabsorbeddosewithinanyprescribedlimits.Also,itisnecessarytomonitoranddocumenttheabsorbeddoseduringeachproductionruntoverifycompliancewiththeprocessspecificationsatapredeterminedlevelofconfidence.NOTE3-TheCodexAlimentariusCommissionhasdevelopedaninternationalGeneralStandardandaCodeofPracticethataddresstheapplicationofionizingradiationtothetreatmentoffoodsandthatstronglyemphasizetheroleofdosimetryforensuringthatirradiationwillbeproperlyperformed(1).4.2Somefoodproductsareprocessedinthechilledorfrozenstate.Therefore,dosimetersusedforroutineprocessingshouldbeselectedfortheirfunctionalityunderthoseconditions.Moreover,thetemperatureofadosimeterduringirradiationshouldbesufficientlystabletoallowcorrectionfortemperatureeffectsonthedosimeterresponse.Toavoidtheinfluenceoftemperaturegradientsondosimeterresponseandthesubsequentneedtocorrectfortheseeffects,methodsthatisolatethedosimeterfromtemperaturegradientsmaybeemployed.NOTE4-Formoredetaileddiscussionsofradiationprocessingofvariousfoods,seeASTMGuidesF1355,F1356,F1736,andF1885andRefs(1-11).4.3Toensurethatproductsareirradiatedwithinaspecifiedabsorbed-doserange,routineprocesscontrolrequiresroutineproductdosimetry,documentedproducthandlingprocedures(before,during,andafterirradiation),consistentorientationoftheproductsduringirradiation,monitoringofcriticalprocessparameters,anddocumentationofallrelevantactivitiesandfunctions.1.1Thispracticeoutlinestheinstallationqualificationprogramforanirradiatorandthedosimetricprocedurestobefollowedduringoperationalqualification,performancequalification,androutineprocessinginfacilitiesthatprocessfoodwithionizingradiationfromradionuclidegammasourcestoensurethatproducthasbeentreatedwithinapredeterminedrangeofabsorbeddose.Otherproceduresrelatedtooperationalqualification,performancequalification,androutineprocessingthatmayinfluenceabsorbeddoseintheproductarealsodiscussed.Informationabouteffectiveorregulatorydoselimitsforfoodproductsisnotwithinthescopeofthispractice(seeASTMGuidesF1355,F1356,F1736,andF1885).Note18212;Dosimetryisonlyonecomponentofatotalqualityassuranceprogramforadherencetogoodmanufacturingpracticesusedintheproductionofsafeandwholesomefood.Note28212;ISO/ASTMPractice51431describesdosimetricproceduresforelectronbeamandX-ray(bremsstrahlung)irradiationfacilitiesforfoodprocessing.1.2Forguidanceintheselectionandcalibrationofdosimetrysystems,andinterpretationofmeasuredabsorbeddoseintheproduct,seeISO/ASTMGuide51261andASTMPracticeE666.Fortheuseofspecificdosimetrysystems,seeASTMPracticesE1026andE2304,andISO/ASTMPractices51205,51275,51276,51310,51401,51538,51540,51607,51650,and51956.Fordiscussionofr......
【中国标准分类号】:
【国际标准分类号】:67_020
【页数】:10P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 外部电极荧光灯通用技术条件 |
| 发布部门： | 山东省质量技术监督局 |
| 发布日期： | 2009-02-23 |
| 实施日期： | 2009-03-01 |
| 首发日期： | |
| 作废日期： | |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2009-03-01 |
适用范围
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前言
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目录
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引用标准
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