DIN 14650 T.2-1977 室外用A和B型非自动火灾报警器.带机械脉冲发生器的报警器内部装置

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【英文标准名称】:StandardTestMethodsforSeleniuminWater
【原文标准名称】:水中硒含量的标准测试方法
【标准号】:ASTMD3859-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D19.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:硒;含量测定;试验;水
【英文主题词】:atomicabsorption;furnace(MethodB);hydridetechnique(MethodA);selenium;totalrecoverableselenium;water;
【摘要】:Inmostnaturalwatersseleniumconcentrationsseldomexceed10x03BC;g/L.However,therunofffromcertaintypesofseleniferoussoilsatvarioustimesoftheyearcanproduceconcentrationsashighasseveralhundredmicrogramsperlitre.Additionally,industrialcontaminationcanbeasignificantsourceofseleniuminriversandstreams.Highconcentrationsofseleniumindrinkingwaterhavebeensuspectedofbeingtoxictoanimallife.Seleniumisaprioritypollutantandallpublicwateragenciesarerequiredtomonitoritsconcentration.Thesetestmethodsdeterminethedominantspeciesofseleniumreportedlyfoundinmostnaturalandwastewaters,includingselenities,selenates,andorgano-seleniumcompounds.1.1Thesetestmethodscoverthedeterminationofdissolvedandtotalrecoverableseleniuminmostwatersandwastewaters.Bothtestmethodsutilizeatomicabsorptionprocedures,asfollows:Sections【英文标准名称】:Vitreousandporcelainenamels—Enamelcoatingsappliedtosteelforwritingsurfaces—Specification
【原文标准名称】:釉层和搪瓷.书写表面用适用于钢的搪瓷层.规范
【标准号】:BSEN14864-2005
【标准状态】:作废
【国别】:英国
【发布日期】:2005-12-13
【实施或试行日期】:2005-12-13
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:黑板;覆层;腐蚀;防腐蚀;定义;瓷漆;消磁性;涂鸦;材料试验;数学计算;金属材料;方法;耐力;板材墙面贴面;薄板材;规范(验收);钢板;钢;表面;试验;釉层;计录性能
【英文主题词】:Blackboards;Coatings;Corrosion;Corrosionprotection;Definition;Definitions;Enamels;Erasures;Graffiti;Materialstesting;Mathematicalcalculations;Metallicmaterials;Methods;Resistance;Sheetwallcoverings;Sheets;Specification(approval);Steelplates;Steels;Surfaces;Testing;Vitreousenamel;Writingproperties
【摘要】:ThisEuropeanStandardspecifiestherequirementsforthefunctionalandaestheticcharacteristicsofvitreousorporcelainenamelcoatingsappliedtoplainsteelforuseaswritingsurfaces(whiteboardsandchalkboards).
【中国标准分类号】:Y26
【国际标准分类号】:25_220_50
【页数】:10P.;A4
【正文语种】:英语