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【英文标准名称】:StandardTestMethodforDeterminingResidualSolventsinPackagingMaterials
【原文标准名称】:测定包装材料中剩余溶剂的标准试验方法
【标准号】:ASTMF1884-2004
【标准状态】:现行
【国别】:
【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】:F02.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:残留物;包装件;密封的;试验方法;标准方法;包装材料;溶剂;包装
【英文主题词】:residualsolvents;sealed;vial;packaging
【摘要】:Thistestmethodisintendedtomeasurevolatileorganiccompoundsthatareemittedfrompackagingmaterialsunderhigh-temperatureconditions.Thistestmethodmaybeusefulinassistinginthedevelopmentandmanufactureofpackagingmaterialshavingminimalretainedpackagingink/adhesivesolvents.ModificationofthisprocedurebyutilizingappropriatequalitativeGCdetectiondevicessuchasamassspectrometerinplaceoftheflameionizationdetectormayprovideidentificationofvolatileorganicsofunknownidentity.1.1ThistestmethodcoversdeterminationoftheamountofresidualsolventsreleasedfromwithinapackagingmaterialcontainedinasealedvialunderagivensetoftimeandtemperatureconditionsandisarecommendedalternativeforTestMethodF151.1.2Thistestmethodcoversaprocedureforquantitatingvolatilecompoundswhoseidentityhasbeenestablishedandwhichareretainedinpackagingmaterials.1.3Theanalystshoulddeterminethesensitivityandreproducibilityofthemethodbycarryingoutappropriatestudiesonthesolventsofinterest.TheanalystisreferredtoPracticeE260forguidance.1.4Forpurposesofverifyingtheidentityoforidentifyingunknownvolatilecompoundstheanalystisencouragedtoincorporatetechniquessuchasgaschromatography/massspectroscopy,gaschromatography/infraredspectroscopyorothersuitabletechniquesinconjunctionwiththistestmethod.1.5Sensitivityofthistestmethodinthedeterminationoftheconcentrationofagivenretainedsolventmustbedeterminedonacasebycasebasisduetothevariationinthesubstrate/solventinteractionbetweendifferenttypesofsamples.1.6Thistestmethoddoesnotaddressthedeterminationoftotalretainedsolventsinapackagingmaterial.Techniquessuchasmultipleheadspaceextractioncanbeemployedtothisend.TheanalystisreferredtothemanualsuppliedwiththeGC-Autosamplingsystemforguidance.1.7ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A82
【国际标准分类号】:55_040
【页数】:7P.;A4
【正文语种】:


【英文标准名称】:StandardGuideforDeterminationofNeptunium-237inSoil
【原文标准名称】:测定土壤中镎237的标准指南
【标准号】:ASTMC1475-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:C26.05
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:土壤;镎;测定;含量测定;放射性核素;土壤分析
【英文主题词】:alphaspectroscopy;americium243;betaconuting;extractionchromatography;gamma-rayspectroscopy;neptunium-239;neptunium-237determination;soilanalysis
【摘要】:Asoilsamplingandanalysisprogramprovidesadirectmeansofdeterminingtheconcentrationanddistributionofradionuclidesinsoil.Thepresenceandextentofneptunium-237isofparticularinterestbecauseitisoneofthemoremobiletransuranicsintermsofmigrationandplantuptake.Sincesoilisanintegratorandareservoironlong-livedradionuclides,andservesasanintermediaryinseveralpathwaysofpotentialimportancetohumans,knowledgeoftheconcentrationofneptunium-237insoilisessential.1.1Thisguidecoversthedeterminationofneptunium-237insoilbymeansofradiochemicalseparationsandalphaspectrometry.Thisguideprovidesoptionsintheselectionofsamplepreparation,separation,andmeasurement.Althoughneptunium-237isnotacomponentofglobalfallout,itisaproductofproductionreactorsandspentfuelprocessing.ThisguideisdesignedforanalysisoftengramsofsoilpreviouslycollectedandtreatedinaccordancewithPracticesC998andC999.Larger-sizesamplesofenvironmentalsoilmayalsobeanalyzed,aslongastheconcentrationsofinterferencessuchasuraniumandthoriumareatornearenvironmentalconcentrations.Dependingonthechoiceofasampledissolutionmethod,allchemicalformsofneptuniummaynotbecompletelysolubilized.Thisguideshouldallowthedeterminationofneptunium-237concentrationsfromsubbecquerelpergramlevelstoapplicablestandardsdependingoncounttime,samplesize,detectorefficiency,background,andtraceryield.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8.
【中国标准分类号】:Z33
【国际标准分类号】:13_080_10
【页数】:4P.;A4
【正文语种】: