IEEE 802.15.4-2003 信息技术.系统间远程通信和信息交换.局域网和城域网.特殊要求.第15.4部分:低速率无线个人区域网用无线媒体访问控制和物理层规范

上一篇: IEEE 802.3af-2003 信息技术.系统间远程通信和信息交换.局域网和城域网.特殊要求.第3部分:冲突检测载波检测多路访问(CSMA/CD)法及物理层规范.修改件:经由媒体相关接口的数据终端设备电源
下一篇: IEEE 802a-2003 局域网和城域网:概述和体系结构.修改件1:原型和供货商专用协议开发用以太网

【英文标准名称】:StandardTestMethodforDeterminationofDiisopropylMethylphosphonate,EthylHydrogenDimethylamidophosphate,EthylMethylphosphonicAcid,IsopropylMethylphosphonicAcid,MethylphosphonicAcidandPinacolylMethylphosphonicAcidinWaterbyLiquidChro
【原文标准名称】:用液相色谱法/串联质谱分析水中二异丙基甲基磷酸酯、乙基氢氨基磷酸盐、乙基膦酸、异丙基甲基膦酸、甲基膦酸和频哪基甲基膦酸的测定用标准试验方法
【标准号】:ASTMD7597-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:D19.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:液相色谱法;质谱学;有机金属
【英文主题词】:liquidchromatography;massspectrometry;organophosphonates
【摘要】:Organophosphatepesticidesaffectthenervoussystembydisruptingtheenzymethatregulatesacetylcholine,aneurotransmitter.Theyweredevelopedduringtheearly19thcentury,buttheireffectsoninsects,whicharesimilartotheireffectsonhumans,werediscoveredin1932.Somearepoisonousandwereusedaschemicalweaponagents.Organophosphatepesticidesareusuallynotpersistentintheenvironment.,Thistestmethodisfortheanalysisofselectedorganophosphorous-basedchemicalweaponagentdegradationproductsfromSarin(GB),Soman(GD),Tabun(GA)andVX.Thismethodhasbeeninvestigatedforusewithreagentandsurfacewater.1.1Thisprocedurecoversthedeterminationofdiisopropylmethylphosphonate(DIMP),ethylhydrogendimethylamidophosphate(EHDMAP),ethylmethylphosphonicacid(EMPA),isopropylmethylphosphonicacid(IMPA),methylphosphonicacid(MPA)andpinacolylmethylphosphonicacid(PMPA)(referredtocollectivelyasorganophosphonatesinthistestmethod)insurfacewaterbydirectinjectionusingliquidchromatography(LC)anddetectedwithtandemmassspectrometry(MS/MS)usingelectrosprayionization(ESI).Theseanalytesarequalitativelyandquantitativelydeterminedbythismethod.Thismethodadherestosinglereactionmonitoring(SRM)massspectrometry.1.2ThistestmethodhasbeendevelopedinsupportoftheNationalHomelandSecurityResearchCenter,USEPAbyRegion5ChicagoRegionalLaboratory.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thedetectionverificationlevel(DVL)andreportingrangefortheorganophosphonatesarelistedinTable1.1.4.1TheDVLisrequiredtobeataconcentrationatleastthreetimesbelowthereportinglimit(RL)andhaveasignal/noiseratiogreaterthan3:1.Fig.1displaysthesignal/noiseratiosattheDVLsfortheorganophosphonatesintheESIpositivemodeandFig.2intheESInegativemode.1.4.2ThereportinglimitistheconcentrationoftheLevel1calibrationstandardasshowninTable2fortheorganophosphonatesexceptforMPAintheESInegativemodewhichisatLevel2duetonotmeetingtheDVLcriteriaatthelowerconcentrationlevel.TheDVLforMPAintheESInegativemodeisat20x03BC;g/L,whichforcesaraisedreportinglimit.However,themulti-laboratoryvalidationrequiredaspikeofalltargetanalytesatLevel1concentrations.ThemeanrecoveryforMPAintheESInegativemodeatthislevelwas98.7%asshowninTable3.Ifyourinstrumentx2019;ssensitivitycanmeettherequirementsinthistestmethod,MPAmayhavea50x03BC;g/Lreportinglimit.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C51
【国际标准分类号】:13_060_50
【页数】:12P.;A4
【正文语种】:


【英文标准名称】:PLAINRINGGAUGES.
【原文标准名称】:钢制规.光滑环规
【标准号】:NFE11-030-1986
【标准状态】:作废
【国别】:法国
【发布日期】:1986-07
【实施或试行日期】:1986-06-20
【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】:形状;环规;线性测量仪器;标准量规;量规;计量学;普通量规;测量;图表;名称与符号;尺寸;钢;作标记;表(数据);测量仪器
【英文主题词】:marking;metrology;dimensions;ringgauges;plaingauges;shape;tables(data);charts;measurement;designation;designations;steels;measuringinstruments;standardgauges;gauges;linearmeasuringinstruments
【摘要】:
【中国标准分类号】:N13;J42
【国际标准分类号】:
【页数】:4P;A4
【正文语种】:其他