【英文标准名称】:Crudepetroleumandliquidpetroleumproducts-Laboratorydeterminationofdensity-Hydrometermethod
【原文标准名称】:原油和液体石油产品密度实验室测定密度计法
【标准号】:ISO3675-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-06
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC28
【标准类型】:()
【标准水平】:()
【中文主题词】:密度;相对密度;石油密度计法;定义;石油产品;密度测量;原油
【英文主题词】:Crudeoils;Definitions;Density;Densitymeasurement;Determination;Glass;Hydrometermethod;Laboratorytesting;Materialstesting;Methods;Mineraloils;Petroleumproducts;Relativedensity
【摘要】:ThisInternationalStandardspecifiesamethodforthelaboratorydetermination,usingaglasshydrometer,ofthedensityat15℃ofcrudepetroleum,liquidpetroleumproducts,andmixturesofpetroleumandnon-petroleumproductsnormallyhandledasliquidsandhavingaReidvapourpressure(RVP)of100kPaorless.ThisInternationalStandardissuitablefordeterminingthedensityofmobiletransparentliquids.Itcanalsobeusedforviscousliquidsbycarryingoutthedeterminationsattemperaturesaboveambientusingasuitableliquidbathfortemperaturecontrol.Itcanalsobeusedforopaqueliquidsbyreadingthehydrometerscalewherethetopofthemeniscusmeetsthestemofthehydrometerandapplyingacorrectionfromtable1(see11.2).Sincehydrometersarecalibratedtoreadcorrectlyatthespecifiedtemperature,scalereadingsmadeatothertemperaturesareonlyhydrometerreadingsandnotvaluesofdensityattheseothertemperatures.NOTES1Theaccuracyofthedensity,determinedbytheproceduresgiveninthisInternationalStandard,forvolatileand/orwaxycrudeoilscontainingfreeand/orsuspendedwaterandsedimentscanbelessthaninferredfromtheprecisiondataquotedinclause13.Thisisduetothepossiblelossoflightcomponentsduringsamplemixing.However,samplemixingisnecessarytoensurethatthetestportiontransferredtothehydrometercylinderisasrepresentativeaspossibleofthebulksample.Techniquesaregiveninclause7whicharedesignedtominimizesuchlossoflightcomponent.2Valuesofdensityat15℃canbeconvertedusingstandardmeasurementtablestoequivalentvaluesofAPIgravityorrelativedensitysothatmeasurementsmaybemadeintheunitsoflocalconvenience.
【中国标准分类号】:E30
【国际标准分类号】:75_040;75_080
【页数】:10P;A4
【正文语种】:英语