ASTM D2144-2007 用红外线吸收法对电气绝缘油检验的标准实施规程
【原文标准名称】:用红外线吸收法对电气绝缘油检验的标准实施规程
【标准号】:ASTMD2144-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D27.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:电气工程;电气绝缘;绝缘液体;绝缘件;调查方法;调查;工艺
【英文主题词】:electricalinsulatingoils;infrared;oil;spectrophotometer
【摘要】:Theinfraredspectrumofanelectricalinsulatingoilisarecordoftheabsorptionofinfraredenergyoverarangeofwavelengths.Thespectrumindicatesthegeneralchemicalcompositionofthetestspecimen.Note28212;Theinfraredspectrumofapurechemicalcompoundisprobablythemostcharacteristicpropertyofthatcompound.However,inthecaseofoils,multicomponentsystemsarebeingexaminedwhosespectraarethesumtotalofallthespectraoftheindividualcomponents.Becausetheabsorptionbandsofthecomponentsmayoverlap,thespectrumoftheoilisnotassharplydefinedasthatforasinglecompound.Forthesereasons,thesepracticesmaynotineverycasebesuitableforthequantitativeestimationofthecomponentsofsuchacomplexmixtureasmineraloil.1.1Thesepracticesaretobeusedfortherecordingandinterpretationofinfraredabsorptionspectraofelectricalinsulatingoilsfrom4000to400cm-1(2.5to25956;m).Note1-Whilethesepracticesarespecifictoratiorecordingoropticalnulldouble-beamdispersivespectrophotometers,single-beamandHATR(horizontalattenuatedtotalreflectance),Fourier-transformrapidscaninfraredspectrophotometersmayalsobeused.Bycomputerizedsubtractiontechniques,ratiomethodscanbeused.AnyofthesetypesofequipmentmaybesuitableiftheycomplywiththespecificationsdescribedinPracticeE932.1.2Twopracticesarecovered,aReferenceStandardPracticeandaDifferentialPractice.1.3Thesepracticesaredesignedprimarilyforuseasrapidcontinuitytestsforidentifyingashipmentofoilfromasupplierbycomparingitsspectrumwiththatobtainedfrompreviousshipments,orwiththesampleonwhichapprovaltestsweremade.Theyalsomaybeusedforthedetectionofcertaintypesofcontaminationinoils,andfortheidentificationofoilsinstorageorservice,bycomparisonofthespectraoftheunknownandknownoils.Thepracticesarenotintendedforthedeterminationofthevariousconstituentsofanoil.1.4Warning-Infraredabsorptionisatoolofhighresolvingpower.Conclusionsastocontinuityofoilqualityshouldnotbedrawnuntilsufficientdatahavebeenaccumulatedsothattheshipment-to-shipmentvariationisclearlyestablished,forexample.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E38
【国际标准分类号】:29_040_10
【页数】:5P.;A4
【正文语种】: