BS 4936-1974 苯乙烯--丙烯腈(SAN)模塑和挤塑材料规范的制定方法
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来源:标准资料网
【英文标准名称】:Methodofspecifyingstyrene-acrylonitrile(SAN)mouldingandextrusionmaterials
【原文标准名称】:苯乙烯--丙烯腈(SAN)模塑和挤塑材料规范的制定方法
【标准号】:BS4936-1974
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:StandardTestMethodforApparentViscosityofEngineOilsBetween-5and-35&176;CUsingtheCold-CrankingSimulator
【原文标准名称】:用低温开裂模拟器测定-5～-30℃之间发动机油表观粘度的标准试验方法
【标准号】:ASTMD5293-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D02.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:润滑油;试验;粘度
【英文主题词】:apparentviscosity;coldcranking;cranking;engineoils;petroleumandpetroleumproducts;viscosity;
【摘要】:TheCCSapparentviscosityofautomotiveengineoilscorrelateswithlowtemperatureenginecranking.CCSapparentviscosityisnotsuitableforpredictinglowtemperatureflowtotheengineoilpumpandoildistributionsystem.EnginecrankingdataweremeasuredbytheCoordinatingResearchCouncil(CRC)L-494testwithreferenceoilsthathadviscositiesbetween600and8400mPax00B7;s(cP)atx2212;17.8x00B0;Candbetween2000and20000mPax00B7;s(cP)atx2212;28.9x00B0;C.ThedetailedrelationbetweenthisenginecrankingdataandCCSapparentviscositiesisinAppendixesX1andX2ofthe1967TeditionofTestMethodD26025andCRCReport409.4BecausetheCRCL-49testismuchlesspreciseandstandardizedthantheCCSprocedures,CCSapparentviscosityneednotaccuratelypredicttheenginecrankingbehaviorofanoilinaspecificengine.However,thecorrelationofCCSapparentviscositywithaverageL-49enginecrankingresultsissatisfactory.ThecorrelationbetweenCCSandapparentviscosityandenginecrankingwasconfirmedattemperaturesbetweenx2212;1andx2212;40x00B0;Cbyworkon17commercialengineoils(SAEgrades5W,10W,15W,and20W).Bothsyntheticandmineraloilbasedproductswereevaluated.SeeASTMSTP621.6AcorrelationwasestablishedinalowtemperatureengineperformancestudybetweenlightdutyenginestartabilityandCCSmeasuredapparentviscosity.Thisstudyusedten1990’enginesattemperaturesrangingfromx2013;5downtox2013;40x00B0;Cwithsixcommercialengineoils(SAE0W,5W,10W,15W,20W,and25W).71.1Thistestmethodcoversthelaboratorydeterminationofapparentviscosityofengineoilsbycoldcrankingsimulator(CCS)attemperaturesbetween-5and-35176;Catshearstressesofapproximately50000to100000Paandshearratesofapproximately105to104s-1andviscositiesofapproximately500to25000mPa183;s.Therangeofaninstrumentisdependentontheinstrumentmodelandsoftwareversioninstalled.Theseresultsarerelatedtoengine-crankingcharacteristicsofengineoils.1.2AspecialprocedureisprovidedinAnnexA1forhighlyviscoelasticoils.1.3Proceduresareprovidedforbothmanualandautomateddeterminationoftheapparentviscosityofengineoilsusingthecold-crankingsimulator.1.4AspecialmanualprocedureisprovidedinAnnexA1forhighlyviscoelasticoils.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificwarningstatementsaregivenin7.1,7.2,7.3,andSection8.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:9P.;A4
【正文语种】:
Product Code:SAE AIR1209
Title:Construction and Calibration of Parallel Plate Transmission Line for Electromagnetic Interference Susceptibility Testing
Issuing Committee:Ae-4 Electromagnetic Environmental Effects (E3) Committee
Scope: This Aerospace Information Report (AIR) is intended to provide information relating to the construction, calibration, and usage of parallel plate transmission lines in electromagnetic compatibility susceptibility testing.
