ISO 9504-1993 冶金性荧石锑含量的测定溶剂萃取原子吸收光谱法
作者:标准资料网 时间:2024-05-22 09:52:58 浏览:9846
来源:标准资料网
【英文标准名称】:Metallurgical-gradefluorspar;determinationofantimonycontent;solventextractionatomicabsorptionspectrometricmethod
【原文标准名称】:冶金性荧石锑含量的测定溶剂萃取原子吸收光谱法
【标准号】:ISO9504-1993
【标准状态】:作废
【国别】:国际
【发布日期】:1993-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC175
【标准类型】:()
【标准水平】:()
【中文主题词】:锑;矿物;化学分析和试验;原子吸收分光光度测定法;萤石;含量测定;光谱测定法;冶金工业
【英文主题词】:Antimony;Atomicabsorptionspectrophotometry;Chemicalanalysisandtesting;Determinationofcontent;Fluorspar;Metallurgicalindustry;Minerals;Spectrometry
【摘要】:Theprincipleofthemethodspecifiedistodecomposeatestportionbyamixtureofnitric,hydrofluoricandperchloricacids,dissolvingthesaltsinhydrochloricacidafterevaporationtofumesofsulfuricacid,extractingtheantimonyfromadilutehydrochloricacidsolutionofthedecomposedtestportionintoasolutionoftri-n-octylphosphineoxidein4-methyl-2-pentanone,aspiratingtheextractintotheair/acetyleneflameofanatomicabsorptionspectrometer,andmeasuringtheabsorbanceat217,6nm.Appliestoproductshavinganantimonycontentequaltoorgreaterthan0,001%(m/m).
【中国标准分类号】:D52
【国际标准分类号】:73_080
【页数】:7P;A4
【正文语种】:英语
【英文标准名称】:TestMethodforRoomFireTestofWallandCeilingMaterialsandAssemblies
【原文标准名称】:墙壁和天花板材料和组件的房屋防火试验用标准方法
【标准号】:ANSI/ASTME2257-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-03-25
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:组件;天花板;燃烧试验;房屋;墙
【英文主题词】:Assemblies;Ceilings;Firetests;Rooms;Walls
【摘要】:Thisisafire-test-responsestandard.Thistestmethodisintendedtoevaluate,underspecifiedfire-exposureconditions,thecontributiontoroomfiregrowthprovidedbywallorceilingmaterialsandassemblies,orboth.Themethodisnotintendedtoevaluatethefireenduranceofassembliesorfiresoriginatinginthewallassembly.Themethodprovidesameanstoevaluatetheeffectivenessofthermalbarriersinrestrictingthecontributionofcombustiblematerialsinthewallassemblytofiregrowthinaroomfire.Thistestmethod,simulatingafireinthecornerofa2420by3630mm(8by12ft)roomcontainingasingleopendoorway,providesameanstoevaluatetherelativeperformanceofspecifiedwallandceilingmaterialsorassemblieswhentheyareusedtogetherinthesamerelationshipwithinanenclosure,andsimulatingthemannerinwhichtheywillbeused.Thistestmethodisintendedtoevaluatethecontributiontofiregrowthprovidedbyasurfaceproductusingaspecifiedignitionsource.Itshall,however,benotedthatthetype,positionandheatoutputoftheignitionsourcewillconsiderablyinfluencefiregrowth.Thethermalexposureconditionsfromtheignitionsourcespecifiedinthismethodwillresultinflashoverduringthe20mindurationformanycommonfinishmaterials,inparticularifspecimensaremountedonthewallsandtheceiling(standardconfiguration).Thistestmethodprovidesameansforevaluatingwallandceilingfinishmaterialsandassemblies,includingpanels,tiles,boards,sprayedorbrushedcoatings,etc.Thistestmethodisnotintendedtoevaluateflooringmaterialsorfurnishings.ThismethodshallbeusedinconjunctionwithGuideE603,whichcoversinstrumentationandthegeneraleffectofvariousparameters,andGuideE2067,whichdealswithfull-scaleoxygenconsumptioncalorimetry.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theunitsgiveninparenthesesareforinformationonly.Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatoryinformation.Thesenotesandfootnotes(excludingthoseinfigures)shallnotbeconsideredasrequirementsofthestandard.Thisstandardisusedtomeasureanddescribetheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditions,butdoesnotbyitselfincorporateallfactorsrequiredforfire-hazardorfire-riskassessmentofthematerials,products,orassembliesunderactualfireconditions.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P16
【国际标准分类号】:13_220_50
【页数】:
【正文语种】:英语
【英文标准名称】:Specificationoftheradiodatasystem(RDS)forVHF/FMsoundbroadcastinginthefrequencyrangefrom87,5to108,0MHz
【原文标准名称】:频率范围为87.5～108.0MHz的VHF/FM声音广播用无线电数据系统(RDS)的规范
【标准号】:IEC62106-2009
【标准状态】:现行
【国别】:国际
【发布日期】:2009-07
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:应用;基带编码;广播;代码字符集;通信控制层;数据通道;数据格式;数据布置;数据传送;定义(术语);电气工程;调频;频率范围;链路层;作标记;文电;调制;调制参数;物理层;表示层;无线电数据系统;无线电数据系统(RDS);会话层;声音广播;规范;规范(验收);甚高频(VHF)
【英文主题词】:Applications;Basebandcoding;Broadcasting;Codedcharactersets;Communicationcontrollayers;Datachannels;Dataformats;Datalayout;Datatransfer;Definitions;Electricalengineering;Frequencymodulation;Frequencyranges;Linklayers;Marking;Messages;Modulation;Modulationparameters;Physicallayers;Presentationlayers;Radiodatasystems;RDS;Sessionlayer;Soundbroadcasting;Specification;Specification(approval);VHF
【摘要】:
【中国标准分类号】:M61
【国际标准分类号】:33_060;33_170;35_240_99
【页数】:155P;A4
【正文语种】:英语
