ASTM D5305-1997(2007) 测定液化石油气蒸气中乙硫醇的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminationofEthylMercaptaninLP-GasVapor
【原文标准名称】:测定液化石油气蒸气中乙硫醇的标准试验方法
【标准号】:ASTMD5305-1997(2007)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:D02.H0
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:含量测定;化学分析和试验;液化石油气;试验
【英文主题词】:ethylmercaptan;liquefiedpetroleumgases;odorant;staintube
【摘要】:LP-gasiscolorlessandodorless,andnotdetectablebynormalhumansenses.Toprovideanolfactorywarningintheeventofaleak,LP-gasintendedfordomesticorcommercialuseisintentionallyodorizedsoastobereadilydetectablewellbelowflammableorsuffocatingconcentrationlevelsofLP-gasinair.(SeeAppendixX1.)ThemostcommonodorantforLP-gasisethylmercaptan.ThefielduseofthistestmethodwillrapidlydeterminethepresenceandconcentrationofethylmercaptaninLP-gasvaporwithoutthenecessityforcomplexlaboratoryequipment.1.1ThistestmethodcoversarapidandsimpleprocedureusinglengthofstaintubesforfieldmeasurementofethylmercaptaninthevaporphaseofLP-gassystems.Althoughlength-of-staintubesareavailabletodetectethylmercaptanconcentrationsintherangeof0.5to120partspermillionvolume(ppmv),thistestmethodisspecificallyapplicabletosystemscontaining5ppmvormoreofethylmercaptaninLP-gasvapors.Note1-Achromatographictechniquecanbeusedformoreprecise,quantitativedeterminationofethylmercaptaninLP-gas.1.2ThevaluesstatedinSI(metric)unitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E46
【国际标准分类号】:75_160_30
【页数】:4P.;A4
【正文语种】: