【英文标准名称】:StandardPracticeforRubberIRM901,IRM902,andIRM903ReplacementOilsforASTMNo.1,ASTMNo.2,andASTMNo.3Oils
【原文标准名称】:ASTMNo.1、ASTMNo.2和ASTMNo.3油用橡胶IRM901、IRM2和IRM903替换油的标准实施规程
【标准号】:ASTMD5964-2007
【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】:D11.15
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:工业用油;润滑剂;油;替换油;橡胶;代替品
【英文主题词】:ASTMoils;immersiontests;IRMoils;referenceoils
【摘要】:Thereferenceimmersionoilsdescribedinthispracticearerequiredforthedevelopmentofoil-resistantrubbercompoundsforuseinenvironmentswherecontactwithpetroleum-basedsolventsandoilsisencountered.Testsfortensilestrength,percentelongationatbreak,hardness,andpercentvolumeswellareperformedafteraspecifiedimmersiontimeperiod(ataspecifiedtemperature)intheevaluationofoil-resistantrubbers.Theresultsofsuchtestingbyrubberproductmanufacturersandtheircustomersareusedtodevelopoil-resistantrubbersorcompounds,orboth.TestingwithASTMOilsNo.2andNo.3isusedtoverifycompliancewithpurchasespecificationswhichreferencetheoil-resistantclassesofrubbersandelastomerslistedinTable6ofClassificationD2000.TheseoilsarealsousedincomparativeperformanceevaluationtestingofO-ringsandO-ringcompoundsascitedinTestMethodsD1414.Theuseofthesereferenceoilsisrequiredforthedevelopmentandselectionofoil-resistantrubbercompoundshavingacceptableoroptimumperformancecharacteristics,orboth.1.1ThispracticecoversthreeimmersionoilstobeusedasreplacementsforASTMNo.1,No.2,andNo.3immersionoilsascalledforinTestMethodD471.TheimmersionoilswillbedesignatedasIRM901asareplacementforASTMNo.1oil,IRM902asareplacementforASTMNo.2oil,andIRM903asareplacementforASTMNo.3oil.ThenewreferenceoilshavebeendevelopedunderanewCommitteeD11policyonreferencematerials(seePracticeD4678forbackgroundonthenewpolicyandprocedures).1.2Theoils,IRM901,IRM902,andIRM903,aresimilarbutnotfullyequivalenttoASTMNo.1,ASTMNo.2,andASTMNo.3oil,respectively.RefertoTable1foradescriptionofthetypicalpropertiesandspecificationsfortheseoils.1.3Thispracticegivesthenecessarybackgroundanddetailsonthechangeoverfromthepreviousoilstothenewoils.SeeAnnexA1foradditionalinformationonthecommercialoilsselectedtoreplaceASTMNo.2andNo.3oilandthetestprogramconductedforthisselectionprocess.ThechangeoverfromASTMtoIRMoilsisproposedintwosteps:1.3.1Step18212;AtransitionphasethatmakesuseoftheEquivalentVolumeSwell(EVS)foreachofthetworeplacementoils.EVS(902)istheASTMNo.2percentvolumeswellvaluecalculatedfromthemeasuredpercentvolumeswellvalueusingIRM902astheimmersionliquid.AsimilarcalculationcanbeusedtocalculatetheanalogousEVS(903)andEVS(903)values.TheEVSvalueisobtainedasacorrectionofthemeasuredIRM901,902,or903percentvolumeswellvalue.TheEVSvaluesmaybeusedtodetermineifvolumeswellspecificationsaremetwhenthespecificationsareexpressedintermsofASTMNo.1,No.2,orNo.3limits,and1.3.2Step28212;AlongertermpolicychangeorconversionofspecificationsfromASTMNo.1,No.2,andNo.3valuestoIRM901,902,and903values.1.4TheEVSvaluesarecalculatedonthebasisofx201C;correctionequationsx201D;derivedfromoneoftwosources.1.4.1CorrectionequationsderivedfromtheresultsofthecomprehensiveevaluationprogramconductedtoselecteachofthetworeplacementoilsfromagroupofthreecandidateoilsforASTMNo.2andNo.3oils.ThisprogramisdescribedinAnnexA1.1.4.2Correctionequationsderivedfromin-housecustomizedorspecifictestingprogramstomakedirectcomparisonsofthevolumeswell(andotherimportantproperties)oftheIRMandASTMoils.Theseprogramsshouldbeconductedineachlaboratoryofthoseorganizationst......
【中国标准分类号】:E30
【国际标准分类号】:75_100
【页数】:8P.;A4
【正文语种】: