ASTM D4453-2002(2006) 超纯水样品搬运的标准实施规程
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【英文标准名称】:StandardPracticeforHandlingofUltra-PureWaterSamples
【原文标准名称】:超纯水样品搬运的标准实施规程
【标准号】:ASTMD4453-2002(2006)
【标准状态】:现行
【国别】:
【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】:D19.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:试样;搬运;水
【英文主题词】:analysis;container;contamination;ion;sampling
【摘要】:Thedeterminationoftraceimpurities(ontheorderofpartsperbillion)inultra-purewaterplacesextremerequirementsonallaspectsoftheanalyticalsystem.Thisisparticularlytruewhenubiquitousspeciessuchassodiumandchlorideareofinterestbecausetheycanpotentiallybeintroducedascontaminantsatalmosteverystepofananalyticalprocedure.Contaminationcanoccurduringsamplecollection,duringsamplestoragebyleachingofimproperlycleanedcontainers,duringsampletransfer,andbyhandlingwithpipets,syringes,etc.,andduringtheactualanalysisbycontaminatedreagentsandsamplecellsandloopsystems.Itisalsopossiblethattracecontaminantscanbelostfromsamplesbyvolatilizationorprecipitation,bydiffusionintothematrixofthecontainermaterial,andbyx201C;platingoutx201D;onthewallsofsamplinglinesbyflowphenomena.Strictadherencetoagivenprocedureisnecessarytoachievegoodresultsattracelevelsofanalysisbecauseverysmalldifferencesinprocedureexecutionwillaffectprecisionandtheadditionorlossofnanogramamountsofanalytemayaffecttheaccuracyofadetermination.1.1Thispracticecoversconceptsforhandlingultra-purewatersamplesneededforthemeasurementofever-decreasinglevelsofspecifiedimpuritiesthatareencounteredintheoperationofmodernhigh-pressureboilersandturbines.Thehandlingofblanksassociatedwiththeanalysisofultra-purewatersamplesisalsocoveredbythispractice.Thetechniquespresentedcanhelptheinvestigatorincreasetheaccuracyofanalysesperformed.1.2Thispracticeisapplicabletowaterandsteamsamplesfrom"zerosolidstreated"once-throughordrum-typeboilers,reactorcoolantwater,electronicgradewater,oranyotherprocesswaterwhereanalyteconcentrationsareinthelowpartsperbillion(microgramsperlitre)range.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specifichazardsstatementsaregivenin5.2.3.5,5.1,and5.3.7.
【中国标准分类号】:G13
【国际标准分类号】:13_060_30
【页数】:3P.;A4
【正文语种】:
【原文标准名称】:超纯水样品搬运的标准实施规程
【标准号】:ASTMD4453-2002(2006)
【标准状态】:现行
【国别】:
【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】:D19.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:试样;搬运;水
【英文主题词】:analysis;container;contamination;ion;sampling
【摘要】:Thedeterminationoftraceimpurities(ontheorderofpartsperbillion)inultra-purewaterplacesextremerequirementsonallaspectsoftheanalyticalsystem.Thisisparticularlytruewhenubiquitousspeciessuchassodiumandchlorideareofinterestbecausetheycanpotentiallybeintroducedascontaminantsatalmosteverystepofananalyticalprocedure.Contaminationcanoccurduringsamplecollection,duringsamplestoragebyleachingofimproperlycleanedcontainers,duringsampletransfer,andbyhandlingwithpipets,syringes,etc.,andduringtheactualanalysisbycontaminatedreagentsandsamplecellsandloopsystems.Itisalsopossiblethattracecontaminantscanbelostfromsamplesbyvolatilizationorprecipitation,bydiffusionintothematrixofthecontainermaterial,andbyx201C;platingoutx201D;onthewallsofsamplinglinesbyflowphenomena.Strictadherencetoagivenprocedureisnecessarytoachievegoodresultsattracelevelsofanalysisbecauseverysmalldifferencesinprocedureexecutionwillaffectprecisionandtheadditionorlossofnanogramamountsofanalytemayaffecttheaccuracyofadetermination.1.1Thispracticecoversconceptsforhandlingultra-purewatersamplesneededforthemeasurementofever-decreasinglevelsofspecifiedimpuritiesthatareencounteredintheoperationofmodernhigh-pressureboilersandturbines.Thehandlingofblanksassociatedwiththeanalysisofultra-purewatersamplesisalsocoveredbythispractice.Thetechniquespresentedcanhelptheinvestigatorincreasetheaccuracyofanalysesperformed.1.2Thispracticeisapplicabletowaterandsteamsamplesfrom"zerosolidstreated"once-throughordrum-typeboilers,reactorcoolantwater,electronicgradewater,oranyotherprocesswaterwhereanalyteconcentrationsareinthelowpartsperbillion(microgramsperlitre)range.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specifichazardsstatementsaregivenin5.2.3.5,5.1,and5.3.7.
【中国标准分类号】:G13
【国际标准分类号】:13_060_30
【页数】:3P.;A4
【正文语种】:
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