BS EN 62021-2-2007 绝缘液体.酸度的测定.比色滴定法
作者:标准资料网 时间:2024-05-22 15:09:51 浏览:9750
来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Insulatingliquids-Determinationofacidity-Colourimetrictitration
【原文标准名称】:绝缘液体.酸度的测定.比色滴定法
【标准号】:BSEN62021-2-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-08-31
【实施或试行日期】:2007-08-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:酸含量;酸度;酸;比色的;色度特征;色度量度;定义;测定;测量规程;电气工程;电绝缘材料;电绝缘装置;绝缘液体;绝缘材料;绝缘油;液体电绝缘材料;矿物油;试验;滴定法
【英文主题词】:Acidcontent;Acidity;Acids;Colorimetric;Colorimetriccharacteristics;Colorimetricmeasures;Colourimetricmeasures;Definition;Definitions;Determination;Determinationprocedures;Electricalengineering;Electricalinsulatingmaterials;Electricalinsulationdevices;Insulatingliquids;Insulatingmaterials;Insulatingoils;Liquidelectricalinsulatingmaterials;Mineraloils;Testing;Titration
【摘要】:ThispartofIEC62021describesaprocedurefordeterminationoftheacidityofunusedandusedelectricalmineralinsulatingoils.NOTE1Inunusedandusedmineralinsulatingoils,theconstituentsthatmaybeconsideredtohaveacidiccharacteristicsincludeorganicacids,phenoliccompounds,someoxidationproducts,resins,organometallicsaltsandadditives.Themethodmaybeusedtoindicaterelativechangesthatoccurinamineralinsulatingoilduringuseunderoxidizingconditionsthatmayormaynotbeshownbyotherpropertiesoftheresultingmineraloil.Theaciditycanbeusedinthequalitycontrolofunusedmineraloil.Asavarietyofoxidationproductspresentinusedmineraloilcontributetoacidityandtheseproductsvarywidelyintheircorrosionproperties,thetestcannotbeusedtopredictcorrosivenessofamineraloilunderserviceconditions.NOTE2Theacidityresultsobtainedbythistestmethodmayormaynotbenumericallythesameasthoseobtainedbypotentiometricmethods,buttheyaregenerallyofthesamemagnitude.ThepotentiometricmethodusesanendpointatpH11,3toensuretitrationofallspecies,whereasthecolourimetricmethodsusesanindicatorchangingcolouratapproximatelypH9,5.Thismayleadtoslightlyhigherresultsforoilswithaciditiesabove0,3mgKOH/goilwhenusingthepotentiometricmethod.
【中国标准分类号】:E38
【国际标准分类号】:29_040_10
【页数】:20P.;A4
【正文语种】:英语
【原文标准名称】:绝缘液体.酸度的测定.比色滴定法
【标准号】:BSEN62021-2-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-08-31
【实施或试行日期】:2007-08-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:酸含量;酸度;酸;比色的;色度特征;色度量度;定义;测定;测量规程;电气工程;电绝缘材料;电绝缘装置;绝缘液体;绝缘材料;绝缘油;液体电绝缘材料;矿物油;试验;滴定法
【英文主题词】:Acidcontent;Acidity;Acids;Colorimetric;Colorimetriccharacteristics;Colorimetricmeasures;Colourimetricmeasures;Definition;Definitions;Determination;Determinationprocedures;Electricalengineering;Electricalinsulatingmaterials;Electricalinsulationdevices;Insulatingliquids;Insulatingmaterials;Insulatingoils;Liquidelectricalinsulatingmaterials;Mineraloils;Testing;Titration
【摘要】:ThispartofIEC62021describesaprocedurefordeterminationoftheacidityofunusedandusedelectricalmineralinsulatingoils.NOTE1Inunusedandusedmineralinsulatingoils,theconstituentsthatmaybeconsideredtohaveacidiccharacteristicsincludeorganicacids,phenoliccompounds,someoxidationproducts,resins,organometallicsaltsandadditives.Themethodmaybeusedtoindicaterelativechangesthatoccurinamineralinsulatingoilduringuseunderoxidizingconditionsthatmayormaynotbeshownbyotherpropertiesoftheresultingmineraloil.Theaciditycanbeusedinthequalitycontrolofunusedmineraloil.Asavarietyofoxidationproductspresentinusedmineraloilcontributetoacidityandtheseproductsvarywidelyintheircorrosionproperties,thetestcannotbeusedtopredictcorrosivenessofamineraloilunderserviceconditions.NOTE2Theacidityresultsobtainedbythistestmethodmayormaynotbenumericallythesameasthoseobtainedbypotentiometricmethods,buttheyaregenerallyofthesamemagnitude.ThepotentiometricmethodusesanendpointatpH11,3toensuretitrationofallspecies,whereasthecolourimetricmethodsusesanindicatorchangingcolouratapproximatelypH9,5.Thismayleadtoslightlyhigherresultsforoilswithaciditiesabove0,3mgKOH/goilwhenusingthepotentiometricmethod.
【中国标准分类号】:E38
【国际标准分类号】:29_040_10
【页数】:20P.;A4
【正文语种】:英语
下载地址: 点击此处下载