ISO 20844-2004 石油和相关产品.用柴油喷射器喷嘴测定含高聚物油的剪切稳定性

作者:标准资料网 时间:2024-05-19 21:46:08  浏览:9141   来源:标准资料网

【英文标准名称】:Petroleumandrelatedproducts-Determinationoftheshearstabilityofpolymer-containingoilsusingadieselinjectornozzle
【原文标准名称】:石油和相关产品.用柴油喷射器喷嘴测定含高聚物油的剪切稳定性
【标准号】:ISO20844-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-03
【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】:试验;测定;定义;试验设备;石油产品;数学计算;粘度;矿物油;柴油;合成的;剪应力;高聚物;油;剪切强度;液压油;粘度变化;剪切稳定性;材料试验;燃料喷射器
【英文主题词】:Definitions;Determination;Dieselfuels;Dieseloils;Fuelinjectors;Hydraulicoils;Materialstesting;Mathematicalcalculations;Mineraloils;Oils;Petroleumproducts;Polymers;Shearstability;Shearstrength;Shearstress;Synthetic;Testequipment;Testing;Viscosity;Viscositychanges
【摘要】:ThisInternationalStandardspecifiesamethodtoassesstheresistancetoshearstressesappliedtomineraloils,syntheticoilsandotherfluidscontainingpolymers,whenpassedthroughaspecifieddieselinjectornozzle.Theshearstabilityismeasuredbythechangeinviscosityofthefluidundertest,broughtaboutbythepolymerdegradationduringstress.Undernormalcircumstances,thisInternationalStandardisappliedtohydraulicfluidsofcategoriesHRandHVasdefinedinISO6743-4([1]intheBibliography)andspecifiedinISO11158([2]intheBibliography),butitmayalsobeappliedtofire-resistanthydraulicfluidswithincategoriesHFA,HFB,HFCandHFD,withmodifiedconditionsasspecifiedinISO12922([3]intheBibliography).Noformalcorrelationhasbeenestablishedbetweentheviscosityloss,ortheabsenceofviscosityloss,obtainedusingtheproceduresdescribedinthisInternationalStandardandthatofoilsandfluidsinactualservice.However,itprovidesstandardizedconditionsfortheevaluationofpolymerstabilityunderminimizedthermalandoxidativestresses.Itisnormallyusedbymanufacturersoffluidsandadditives,andusers,asameansofrankingexistingandpotentialformulations.NOTEChangestopropertiesotherthanviscosityarespecifiedinsomespecifications,butthesearenotcoveredbytheproceduresspecifiedinthisInternationalStandard.
【中国标准分类号】:E31
【国际标准分类号】:75_080
【页数】:9P;A4
【正文语种】:英语