ASTM E1064-2008 用卡尔费歇尔库仑滴定法测定有机液体中水含量的标准试验方法

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【英文标准名称】:StandardTestMethodforWaterinOrganicLiquidsbyCoulometricKarlFischerTitration
【原文标准名称】:用卡尔费歇尔库仑滴定法测定有机液体中水含量的标准试验方法
【标准号】:ASTME1064-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E15.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:coulometric;KarlFischer;organicliquids;pyridine;pyridine-free;water;Chemicalanalysis--chemicals;CoulometricKarlFischertitration;Iodinereagentmethod;KarlFischerreagentmethod--watercontent;Liquidchemicals;Liquids--laboratoryapplicat
【摘要】:ThecoulometrictechniqueisespeciallysuitedfordetermininglowconcentrationsofwaterinorganicliquidsthatwouldyieldsmalltitersbytheKarlFischervolumetricprocedure.Theprecisionandaccuracyofthecoulometrictechniquedecreasesforconcentrationsofwatermuchgreaterthan2.0%becauseofthedifficultyinmeasuringthesmallsizeofsamplerequired.Thetestmethodassumes100%efficiencyofcoulombsiniodineproduction.Provisionismadeforverifyingthisefficiency.(SeeTable1andNote6.)1.1Thistestmethodcoversthedeterminationofwaterfrom0to2.0%massinmostliquidorganicchemicals,withKarlFischerreagent,usinganautomatedcoulometrictitrationprocedure.UseofthistestmethodisnotapplicableforliquefiedgasproductssuchasLiquidPetroleumGas(LPG),Butane,Propane,LiquidNaturalGas(LNG),etc.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Reviewthecurrentmaterialsafetydatasheets(MSDS)fordetailedinformationconcerningtoxicity,first-aidprocedures,handling,andsafetyprecautions.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8.
【中国标准分类号】:G15
【国际标准分类号】:71_080_01
【页数】:4P.;A4
【正文语种】:英语