【英文标准名称】:StandardPracticeforSeparationandConcentrationofIgnitableLiquidResiduesfromFireDebrisSamplesbyDynamicHeadspaceConcentration
【原文标准名称】:用动态顶部空间浓缩法测定燃烧残骸试样中可燃性液态残渣的分离和浓度的标准实施规程
【标准号】:ASTME1413-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:E30.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:分析方法;防火安全
【英文主题词】:dynamicheadspaceconcentration;firedebrissamples
【摘要】:Thispracticeisusefulforpreparingextractsfromfiredebrisforlateranalysisbygaschromatography,GC/MS,orGC/IR.Thisisaverysensitiveseparationprocedure,capableofisolatingquantitiessmallerthan0.1x03BC;Lofignitableliquidresiduefromasample.4.2.1Actualrecoverywillvary,dependingonseveralfactors,includingadsorptiontemperature,containersize,andcompetitionfromthesamplematrix.x201C;Thisisapotentiallydestructivetechnique.x201D;Portionsofthesamplesubjectedtothisproceduremaynotbesuitableforre-sampling.Therefore,aportionofthesampleextractshouldbesavedforpotentialfutureanalysis.ConsiderusingpassiveheadspaceconcentrationasdescribedinPracticeE1412.1.1Thispracticedescribestheprocedureforseparationofsmallquantitiesofignitableliquidresiduesfromfiredebrissamplesusingtheabsorption/elutionmethodofheadspaceconcentration.1.2Bothpositiveandnegativepressuresystemsaredescribed.1.3Whilethispracticeissuitableforsuccessfullyextractingignitableliquidresiduesovertheentirerangeofconcentration,theheadspaceconcentrationmethodsarebestusedwhenahighlevelofsensitivityisrequiredduetoaverylowconcentrationofignitableliquidresiduesinthesample.1.4AlternateseparationandconcentrationproceduresarelistedinSection2.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C80
【国际标准分类号】:13_220_99
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:StandardTestMethodsofPolyurethaneRawMaterialsDeterminationofthePolymerizedEthyleneOxideContentofPolyetherPolyols
【原文标准名称】:聚氨基甲酸乙酯原材料的标准试验方法:聚醚多元醇的聚合环氧乙烷含量的测定
【标准号】:ASTMD4875-1999
【标准状态】:作废
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:环氧乙烷;化学;试验
【英文主题词】:chemistry;ethyleneoxide;testing
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:5P;A4
【正文语种】:英语