【英文标准名称】:Determinationoforganonitrogencompoundsinairusingliquidchromatographyandmassspectrometry-Part1:Isocyanatesusingdibutylaminederivatives
【原文标准名称】:在空气中用液相色谱法和质谱学对有机氮化合物的测定.第1部分:用二丁胺衍生物的异氰酸酯
【标准号】:ISO17734-1-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-03
【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】:空气质量;分析;化学分析和试验;含量测定;异氰酸酯;液相色谱法;质谱学;氮化合物;有机化合物;抽样方法;光谱测定法;工作地点
【英文主题词】:Airquality;Analysis;Chemicalanalysisandtesting;Determinationofcontent;Isocyanates;Liquidchromatography;Massspectrometry;Nitrogencompound;Organiccompounds;Samplingmethods;Spectrometry;Workingplaces
【摘要】:ThispartofISO17734givesgeneralguidanceforthesamplingandanalysisofairborneisocyanatesinworkplaceair.Whenaminesandaminoisocyanatesaresuspectedtobeemitted(e.g.fromthermaldegradationofPUR),itisrecommendedthatinadditiontoisocyanatestheaminesandaminoisocyanatesinairaredetermined,usingDBAandethylchloroformateasreagents(ISO17734-2).Themethodissuitableforthedeterminationofawiderangeofdifferentisocyanatesinboththegasandparticlephases.Typicalmonofunctionalisocyanatesthatcanbedeterminedareisocyanicacid(ICA),methylisocyanate(MIC),ethylisocyanate(EIC),propylisocyanate(PIC),butylisocyanate(BIC),andphenylisocyanate(Phi).Typicalmonomericdiisocyanatesinclude1,6-hexamethylene-(HDI),2,4-and2,6-toluene-(TDI),4,4'-diphenylmethane-(MDI),1,5-naphthyi-(NDI),isophorone-(IPDI),and4,4'-dicyclohexylmethanediisocyanate(HMDI).MultifunctionalisocyanatesthatcanbedeterminedaretypicallyoligomersinpolymericMDI,biuret-,isocyanurate-,andallophanate-adductsandprepolymericformsofisocyanates.Theinstrumentaldetectionlimitforaliphaticisocyanatesisabout50fmolandforaromaticisocyanates,itis2fmol.Fora15-1airsample,thiscorrespondsto0,6ngrrr3forHDIand0,02ngrrr3forTDI.Theusefulrange,fora5-1airsample,ofthemethodisapproximately0,001ug-rrr3to200mg-rrr3forTDI.
【中国标准分类号】:C70
【国际标准分类号】:13_040_30
【页数】:29P.;A4
【正文语种】:英语