【英文标准名称】:Ventilationforbuildings-Performancetestingofcomponents/productsforresidentialventilation-Part3:Rangehoodsforresidentialuse;GermanversionEN13141-3:2004
【原文标准名称】:建筑物的通风.住宅通风用组件/产品的性能试验.第3部分:住宅用排油烟机
【标准号】:DINEN13141-3-2004
【标准状态】:现行
【国别】:德国
【发布日期】:2004-04
【实施或试行日期】:2004-04-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisEuropeanstandardspecifiesmethodsformeasuringthemainperformancecharacteristicsofrangehoodsforresidentialuse.Itappliestorecirculatingrangehoods,airextractionrangehoodsincorporatingafanandairextractionrangehoodswithoutfan.Thisstandarddoesnotspecifyvaluesforperformancecharacteristics.SafetyRequirementsarespecifiedinEN60335-2-31.#,,#
【中国标准分类号】:P48
【国际标准分类号】:91_140_30;97_040_20
【页数】:12P;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodsforSeleniuminWater
【原文标准名称】:水中硒含量的标准试验方法
【标准号】:ASTMD3859-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D19.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:atomicabsorption;furnace(MethodB);hydridetechnique(MethodA);selenium;totalrecoverableselenium;water;Atomicabsorptionspectrophotometry/spectroscopy;Dissolvedelements(ofwater);Furnaces;GaseoushydrideAAS;Graphitefurnaceatomic
【摘要】:Inmostnaturalwatersseleniumconcentrationsseldomexceed10x03BC;g/L.However,therunofffromcertaintypesofseleniferoussoilsatvarioustimesoftheyearcanproduceconcentrationsashighasseveralhundredmicrogramsperlitre.Additionally,industrialcontaminationcanbeasignificantsourceofseleniuminriversandstreams.Highconcentrationsofseleniumindrinkingwaterhavebeensuspectedofbeingtoxictoanimallife.Seleniumisaprioritypollutantandallpublicwateragenciesarerequiredtomonitoritsconcentration.Thesetestmethodsdeterminethedominantspeciesofseleniumreportedlyfoundinmostnaturalandwastewaters,includingselenities,selenates,andorgano-seleniumcompounds.1.1Thesetestmethodscoverthedeterminationofdissolvedandtotalrecoverableseleniuminmostwatersandwastewaters.Bothtestmethodsutilizeatomicabsorptionprocedures,asfollows:
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