ASTM E410-1998(2003) 液氯中水和残渣的试验方法
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【英文标准名称】:StandardTestMethodforMoistureandResidueinLiquidChlorine
【原文标准名称】:液氯中水和残渣的试验方法
【标准号】:ASTME410-1998(2003)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:E15.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:残留物;试验;氯;潮气;化合物;剩余试验
【英文主题词】:analysis;chlorine;gravimetric;moisture;residue;water
【摘要】:Thistestmethodprovidesforthedeterminationofmoistureandresidueinliquidchlorine.Theconcentrationlevelsoftheseimpuritiesareimportantfactorsinmanycommercialusesofliquidchlorine.1.1Thistestmethodcoversthedeterminationofmoistureandresidueinliquidchlorine.Lowerlimitsofdetectionof10ppm(w/w)basedona150mLsampleareachievable.1.2Thistestmethoddescribesoperationsandspecialapparatusforsamplingliquidchlorinefromcylinders.Samplingothercommercialfacilitiessuchastankcars,barges,andstoragetanksrequirespecialtechniquesofmanipulationinfillingsamplecylindersfortesting.Ifconditionsandfacilitiesarefavorable,theanalysisapparatusmaybeconnecteddirectlytotheselargerstorageandtransportationunitsandon-the-spottestsmaybecompleted.1.3Theanalyticalmethodsareempiricalandaregravimetric.Theyareapplicabletothedeterminationoftheresidueandmoisturecontentofcommercialgradesofliquidchlorine(condensedgaseousproduct).1.4Residueisdefinedasbeingthosesubstanceswhichremaininthesampleflaskaftersamplevolatilizationundertheconditionsofthetest.Moistureisdefinedasthevolatilesubstancesevolvedduringvolatilizationandpurgingofthesample-residueflaskandabsorbedonthedesiccantcontainedintheabsorptiontubesundertheconditionsofthetest.Someofthevolatilechlorinatedhydrocarbonsmayalsobeevolvedfromthesampleresidueflaskduringpurgeandabsorbed,thuscontributingtotheapparentmoistureanalysisvalue.1.5Thistestmethodmaybeusedfordeterminingthemoisturecontentonlyofgaseouschlorineifsuitableandappropriatemodificationsaremadeforsamplemeasurementandcalculation.1.6Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Themetricequivalentsofinch-poundunitsmaybeapproximate.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection7.
【中国标准分类号】:A43
【国际标准分类号】:71_060_10
【页数】:5P.;A4
【正文语种】:
【原文标准名称】:液氯中水和残渣的试验方法
【标准号】:ASTME410-1998(2003)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:E15.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:残留物;试验;氯;潮气;化合物;剩余试验
【英文主题词】:analysis;chlorine;gravimetric;moisture;residue;water
【摘要】:Thistestmethodprovidesforthedeterminationofmoistureandresidueinliquidchlorine.Theconcentrationlevelsoftheseimpuritiesareimportantfactorsinmanycommercialusesofliquidchlorine.1.1Thistestmethodcoversthedeterminationofmoistureandresidueinliquidchlorine.Lowerlimitsofdetectionof10ppm(w/w)basedona150mLsampleareachievable.1.2Thistestmethoddescribesoperationsandspecialapparatusforsamplingliquidchlorinefromcylinders.Samplingothercommercialfacilitiessuchastankcars,barges,andstoragetanksrequirespecialtechniquesofmanipulationinfillingsamplecylindersfortesting.Ifconditionsandfacilitiesarefavorable,theanalysisapparatusmaybeconnecteddirectlytotheselargerstorageandtransportationunitsandon-the-spottestsmaybecompleted.1.3Theanalyticalmethodsareempiricalandaregravimetric.Theyareapplicabletothedeterminationoftheresidueandmoisturecontentofcommercialgradesofliquidchlorine(condensedgaseousproduct).1.4Residueisdefinedasbeingthosesubstanceswhichremaininthesampleflaskaftersamplevolatilizationundertheconditionsofthetest.Moistureisdefinedasthevolatilesubstancesevolvedduringvolatilizationandpurgingofthesample-residueflaskandabsorbedonthedesiccantcontainedintheabsorptiontubesundertheconditionsofthetest.Someofthevolatilechlorinatedhydrocarbonsmayalsobeevolvedfromthesampleresidueflaskduringpurgeandabsorbed,thuscontributingtotheapparentmoistureanalysisvalue.1.5Thistestmethodmaybeusedfordeterminingthemoisturecontentonlyofgaseouschlorineifsuitableandappropriatemodificationsaremadeforsamplemeasurementandcalculation.1.6Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Themetricequivalentsofinch-poundunitsmaybeapproximate.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection7.
【中国标准分类号】:A43
【国际标准分类号】:71_060_10
【页数】:5P.;A4
【正文语种】:
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