BS 6379-4-1991 咖啡和咖啡制品的取样.第4部分:感官分析用绿色咖啡豆的样品制备方法
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来源:标准资料网
【英文标准名称】:Samplingofcoffeeandcoffeeproducts-Methodforpreparationofsamplesofgreencoffeeforuseinsensoryanalysis
【原文标准名称】:咖啡和咖啡制品的取样.第4部分:感官分析用绿色咖啡豆的样品制备方法
【标准号】:BS6379-4-1991
【标准状态】:作废
【国别】:英国
【发布日期】:1991-11-29
【实施或试行日期】:1991-11-29
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:抽样方法;非酒精饮料;感官分析(食品);咖啡;咖啡豆;试样制备;烤
【英文主题词】:Agriculturalproducts;Coffee;Foodproducts;Sensoryanalysis;Sensoryanalysis(food);Specimenpreparation;Testing;Tests
【摘要】:Roastingandgrindingofasampleofgreencoffee.Infusionoftheroastedandgroundcoffeeinfreshlyboiledwater.
【中国标准分类号】:X50;B35
【国际标准分类号】:67_140_20;67_240
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:AlarmSystems-SocialalarmSystems-Part2:triggerdevices.
【原文标准名称】:报警系统.公共报警系统.第2部分:触发装置
【标准号】:NFC48-342-1999
【标准状态】:现行
【国别】:法国
【发布日期】:1999-09-01
【实施或试行日期】:1999-09-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:A91
【国际标准分类号】:13_320
【页数】:31P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforAnalysisofUrineforUranium-235andUranium-238IsotopesbyInductivelyCoupledPlasma-MassSpectrometry
【原文标准名称】:用感应耦合等离子体质谱法分析铀235和铀238同位素用尿的标准试验方法
【标准号】:ASTMC1379-2004
【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】:C26.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:铀同位素;光谱测定法;质谱学;尿液检验;放射性同位素;等离子体;铀;生物测定;总量;尿;试验方法;浓缩;分析
【英文主题词】:bioassay;inductivelycoupledplasma-massspectrometry(ICP-MS);totaluraniumconcentration;urineanalysis
【摘要】:DOEOrder5480.11andANSIN13.30requirethatinternaldoseassessmentsbemadeaspartofthebioassayprogramfornuclearfacilityworkers.Forindirectbioassayofuraniumworkers,theuraniumisotopesmustbemeasuredalongwiththetotaluraniuminurinesamples.TheRMDAforeachuraniumisotopeis0.1pCi/L.Thismethodisapplicableformeasuring235Uand238UattheRMDA.Becauseofextremelylowmassconcentration(becauseofthehighspecificactivity),234Ucannotbemeasuredwithoutadditionalsamplepreconcentration.Note28212;Columnchromatographyseparationsandconcentrationof234Uusingmanualorflow-injectionpreconcentrationfollowedbyICP-MSisotopicdeterminationaredescribedinTestMethodsC1310andC1345.Thesemethodsfocusonenvironmentalsoilsampleanalysis,butwithsomedevelopment,maybeapplicabletodigestedurinesamples.The234Uconcentrationcanbecalculatedbasedonanenrichmentgradientforworkersinuraniumenrichmentplants,andinternaldoseassessmentscanbemade.Note38212;UseofhighresolutionICP-MSmayalsobeusedtoobtainlowerdetectionlimits,see1.1.1Thistestmethodcoversthedeterminationoftheconcentrationofuranium-235anduranium-238inurineusingInductivelyCoupledPlasma-MassSpectrometry.Thistestmethodcanbeusedtosupporturaniumfacilitybioassayprograms.1.2Thismethoddetectionlimitsfor235Uand238Uare6ng/L.TomeettherequirementsofANSIN13.30,theminimumdetectableactivity(MDA)ofeachradionuclidemeasuredmustbeatleast0.1pCi/L(0.0037Bq/L).TheMDAtranslatesto47ng/Lfor235Uand300ng/Lfor238U.Uranium-234cannotbedeterminedattheMDAwiththistestmethodbecauseofitslowmassconcentrationlevelequivalentto0.1pCi/L.1.3Thedigestionandanionseparationofurinemaynotbenecessarywhenuraniumconcentrationsofmorethan100ng/Larepresent.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.TheICP-MSisasourceofintenseultravioletradiationfromtheradiofrequencyinducedplasma.ProtectionfromradiofrequencyradiationandUVradiationisprovidedbytheinstrumentundernormaloperation.
【中国标准分类号】:F73
【国际标准分类号】:11_100
【页数】:6P.;A4
【正文语种】:
