ASTM D6142-2003 用毛细管气相色谱法分析苯酚的标准试验方法

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【英文标准名称】:StandardTestMethodforAnalysisofPhenolbyCapillaryGasChromatography
【原文标准名称】:用毛细管气相色谱法分析苯酚的标准试验方法
【标准号】:ASTMD6142-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D16.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:气相色谱法;苯酚;试验方法;杂质;试验
【英文主题词】:acetone;cumene;gaschromatography;hydroxyacetone;mesityloxide
【摘要】:Thistestmethodissuitableforsettingspecificationsonphenolandforuseasaninternalqualitycontroltoolwherephenolisproducedorisusedinamanufacturingprocess.Itmayalsobeusedindevelopmentorresearchworkinvolvingphenol.Itisgenerallyappliedtodeterminingthosecommonlyoccurringimpuritiessuchasmesityloxide,cumene,hydroxyacetone,acetone,alpha-methylstyrene,2-methylbenzofuran,acetophenone,o-cresol,andmx0026;p-cresol.Purityiscommonlyreportedbysubtractingthedeterminedexpectedimpuritiesfrom100.00.However,agaschromatographicanalysiscannotdetermineabsolutepurityifunknowncomponentsarecontainedwithinthematerialbeingexamined.1.1Thistestmethodcoversthedeterminationofknownimpuritiesinphenolbygaschromatography(GC).Itisgenerallymeantfortheanalysisofphenolof99.9%orgreaterpurity.1.2Thefollowingappliestoallspecifiedlimitsinthistestmethod:forpurposesofdeterminingconformancewiththistestmethod,anobservedvalueorcalculatedvalueshallberoundedoff"tothenearestunit"inthelastright-handdigitusedinexpressingthespecificationlimitinaccordancewiththerounding-offmethodofPracticeE29.Precisiondataisbasedonimpurityconcentrationsof15to70mg/kg.Usersofthistestmethodbelieveitislinearoverawiderrange.1.3ThisTestMethoddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection9.
【中国标准分类号】:G17
【国际标准分类号】:71_040_50
【页数】:6P.;A4
【正文语种】: