ISO 14965-2000 空气质量非甲烷总烃的测定低温预浓缩和直接火焰离子化检测法

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【英文标准名称】:Airquality-Determinationoftotalnon-methaneorganiccompounds-Cryogenicpreconcentrationanddirectflameionizationdetectionmethod
【原文标准名称】:空气质量非甲烷总烃的测定低温预浓缩和直接火焰离子化检测法
【标准号】:ISO14965-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-03
【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/TC146
【标准类型】:()
【标准水平】:()
【中文主题词】:环境空气;含量测定;有机化合物;空气质量;物质的量;电离;浓缩;浓缩;化学分析和试验;浓度(化学);火焰电离;低温的;低温
【英文主题词】:Airquality;Ambientair;Amountsofsubstance;Chemicalanalysisandtesting;Concentration;Concentration(chemical);Cryogenic;Determinationofcontent;Enrichment;Flameionization;Ionization;Lowtemperatures;Organiccompounds
【摘要】:ThisInternationalStandarddescribesaprocedureforsamplinganddeterminingconcentrationsoftotalnon-methanevolatileorganiccompounds(NMVOC)intheambientatmosphere.ThisInternationalStandarddescribesthecollectionofcumulativesamplesinpassivatedstainlesssteelcanistersandsubsequentlaboratoryanalysis.Itdescribesaprocedureforsamplingincanistersatfinalpressuresaboveatmosphericpressure(referredtoaspressurizedsampling).ItemploysacryogenictrappingprocedureforconcentrationoftheNMVOCpriortoanalysis.ThisInternationalStandarddescribesthedeterminationoftheNMVOCbysimpleflameionizationdetection(FID),withoutthegaschromatographiccolumnsandcomplexproceduresnecessaryforspeciesseparation.ThisInternationalStandardisapplicabletocarbonconcentrationsintherangefrom20ppbCto10000ppbC.See12.4forproceduresforloweringtherange.SeveralvariationstothemethoddescribedinthisInternationalStandardarealsopossible;seeclause12.
【中国标准分类号】:Z15
【国际标准分类号】:13_040_20
【页数】:21P;A4
【正文语种】:英语