【英文标准名称】:StandardTestMethodsforNitrite-NitrateinWater
【原文标准名称】:水中亚硝酸盐-硝酸盐的标准试验方法
【标准号】:ASTMD3867-2004
【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】:D19.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;水;含量测定;硝酸盐;亚硝酸盐
【英文主题词】:cadmiumreductionmethod;groundwater;nitrate;nitrite;salinewater;wastewater;water
【摘要】:Bothtestmethodsuseidenticalreagentsandsampleprocessing.Theonlydifferencebetweenthetwomethodsisthatonetestmethodisautomatedandtheotherismanual.Therangesandinterferencesareidentical.Theautomatedtestmethodispreferredwhenlargenumbersofsamplesaretobeanalyzed.Themanualtestmethodisusedforfewersamplesorwhenautomatedinstrumentationisnotavailable.ThesetestmethodsreplaceTestMethodsD1254(Nitrite)andD992(Nitrate).Thenitritetestmethod(TestMethodD1254)usedareagentthatisconsideredtobeapotentialcarcinogen.Thenitratetestmethod(TestMethodD992)hasbeenshowntohaverelativelylargeerrorswhenusedinwastewatersandalsohasgreatermanipulativedifficultiesthanthetestmethoddescribedherein.1.1Thesetestmethodscoverthedeterminationofnitritenitrogen,nitratenitrogen,andcombinednitrite-nitratenitrogeninwaterandwastewaterintherangefrom0.05to1.0mg/Lnitrogen.Twotestmethodsaregivenasfollows:SectionsTestMethodA-AutomatedCadmiumReduction9to16TestMethodB-ManualCadmiumReduction17to24【英文标准名称】:Fixedcapacitorsforuseinelectronicequipment-Part18-2:Blankdetailspecification-Fixedaluminiumelectrolyticsurfacemountcapacitorswithnon-solidelectrolyte-AssessmentlevelEZ(IEC60384-18-2:2007);GermanversionEN60384-18-2:2007
【原文标准名称】:电子设备用固定电容器.第18-2部分:空白详细规范:采用非固体电解质的固定铝电解的表面安装电容器.评定等级EZ
【标准号】:EN60384-18-2-2007
【标准状态】:现行
【国别】:
【发布日期】:2007-12
【实施或试行日期】:2007-12-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:铝电容器;铝电解电容器;铝质电解电容器;评定等级;空白格式;电容器;详细规范;电气工程;电解电容器;电子设备和元件;电子仪器;固定电容器;质量保证;SMD;表面安装;表面安装设备;测试
【英文主题词】:Aluminiumcapacitors;Aluminiumelectrolyticcapacitor;Aluminiumelectrolyticcapacitors;Assessmentlevel;Blankforms;Capacitors;Detailspecification;Electricalengineering;Electrolyticcapacitors;Electronicequipmentandcomponents;Electronicinstruments;Fixedcapacitors;Qualityassurance;SMD;Surfacemounting;Surfacemountingdevices;Testing
【摘要】:
【中国标准分类号】:L11
【国际标准分类号】:31_060_50
【页数】:15P.;A4
【正文语种】:英语