【英文标准名称】:Polymericthermistors-Directlyheatedpositivestepfunctiontemperaturecoefficient-Part1:Genericspecification
【原文标准名称】:聚合热敏电阻.直接加热的阳极阶跃函数温度系数.第1部分:总规范
【标准号】:IEC62319-1-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC40
【标准类型】:()
【标准水平】:()
【中文主题词】:电阻器;通信系统;连续性试验;架设(施工作业);电信;远程通信;温度系数;控制图;通信设备;热敏电阻;质量评定;总规范;高聚物;试验;过电流保护装置;与温度有关的;定义;电子设备及元件;定型试验
【英文主题词】:Communications;Continuitytests;Controlcharts;Definitions;Electricalengineering;Electronicequipmentandcomponents;Erecting(constructionoperation);Genericspecification;Overcurrentprotection;Polymericmaterials;Polymers;Qualityassessment;Resistors;Telecommunication;Telecommunicationsystems;Telecommunications;Temperaturecoefficients;Temperature-dependent;Testing;Thermistors;Typetesting
【摘要】:Prescribestermsandmethodsoftestforpolymericpositivetemperaturecoefficientthermistors,insulatedandnon-insulatedtypes,typicallyintendedforuseincurrentlimitingandovercurrentprotectionapplications.Itestablishesstandardterms,ins
【中国标准分类号】:L15
【国际标准分类号】:31_040_30
【页数】:40P.;A4
【正文语种】:英语


【英文标准名称】:Petroleumandrelatedproducts-Determinationoftheshearstabilityofpolymer-containingoilsusingadieselinjectornozzle
【原文标准名称】:石油和相关产品.使用柴油注射器喷嘴测定含聚合物油的剪切稳定性
【标准号】:BSENISO20844-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-04-26
【实施或试行日期】:2004-04-26
【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】:定义;定义(术语);测定;柴油;燃料喷射器;液压油;材料测试;数学计算;矿物油;油;石油产品;高聚物;剪切稳定性;剪切强度;剪应力;合成的;试验设备;试验;粘度;粘度变化
【英文主题词】:Definition;Definitions;Determination;Dieselfuels;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】:18P.;A4
【正文语种】:英语