【英文标准名称】:StandardTestMethodforDeterminingUnreactedMonomerContentofLatexesUsingGas-LiquidChromatography
【原文标准名称】:用气液色谱法测定乳胶中未反应单体含量的标准试验方法
【标准号】:ASTMD4747-2002(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:D01.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:analysisofmonomers;acryliclatexeschromatography(subheadinggaschromatography);gaschromatography;latexpaints;latexvehicles;styrene;tracemonomers;unreactedmonomersinlatexes;Gaschromatography(GC)--paints/relatedcoatings/materials;Odo
【摘要】:Excessiveamountsofunreactedmonomermaycauseconcernsrelatingtotoxicityandodor.Thistestmethodisdesignedtomeasuretheunreactedmonomercontentoflatexes.Theresultsmaybeusedtomonitortheextentofpolymerizationduringmanufacture,aswellastoestablishmaximumunreactedmonomercontentforregulatorypurposes.1.1Thistestmethodcoversthedeterminationoffreemonomercontentofacryliclatexes.Monomersthathavebeensuccessfullydeterminedbythisprocedureincluden-butylmethacrylate,n-butylacrylate,styrene,andmethylmethacrylate.Thedeterminationofothermonomershasnotbeenevaluated,butthistestmethodisbelievedtobeapplicable.Theestablishedworkingrangeofthistestmethodisfrom100to1000x03BC;g/g,butthereisnoreasontobelieveitwillnotworkoutsideofthisrange,providedthatappropriatedilutionsandadjustmentsinspecimensizearemade.1.2Thevolatilecompositionofacryliclatexesisexpectedtochangewithtimeandenvironmentalfactors.Thistimedependenceofthedeterminationmaybeseenasanartificiallylargedeviationofresults,makingthemethodmostlyapplicableforin-housequalitycontrol,wheresamplingandanalysisconditionscanbebettercontrolled.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSection7forspecifichazardstatements.
【中国标准分类号】:G40
【国际标准分类号】:83_040_10
【页数】:4P.;A4
【正文语种】:英语


【英文标准名称】:Telecommunications-FrameworkforCORBA-BasedTelecommumicationsManagementNetworkInterfaces
【原文标准名称】:电信.基于CORBA的远程通信管理网络接口的框架
【标准号】:ANSIATIS0327100-2004
【标准状态】:作废
【国别】:美国
【发布日期】:2004
【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】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:远程通信;信息技术;接口(数据处理)
【英文主题词】:telecommunication;interfaces;informationtechnology;interfaces(dataprocessing)
【摘要】:ThisalignmenteffortconsistsofadoptingITU-TRecommendationsQ.816,Q.816.1,X.780,andX.780.1toreplacethepreviouslypublished(2000)versionofT1.271.
【中国标准分类号】:M14
【国际标准分类号】:35_110;35_200
【页数】:
【正文语种】:英语