Designation:D5964−16(Reapproved2021)StandardPracticeforRubberIRM901,IRM902,andIRM903ReplacementOilsforASTMNo.1,ASTMNo.2,ASTMNo.3Oils,andIRM905formerlyASTMNo.5Oil1ThisstandardisissuedunderthefixeddesignationD5964;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONTestMethodD471wasrevisedinFebruary1995,establishingIRM902andIRM903asreplacementsforASTMNo.2andNo.3immersionoils,respectively.UnlikeASTMNo.2andNo.3oils,thetwoIRMoilsareseverelyhydrotreated,haveademonstratednegativeAmestestanddonotrequirecancerwarninglabelsundertheOSHAHazardCommunicationStandardpublishedinNovember1983.AlthoughitwasattemptedtomatchtheeffectoftheASTMoilsonrubberpropertiesinimmersiontestingascloselyaspossible,ingeneral,neitheroftheIRMoilsproducestestresultsexactlyidenticaltotheASTMoilsitreplaced.TestMethodD471wasagainrevisedinOctober2006,establishingIRM901asareplacementforASTMNo.1immersionoil.ThereplacementwasnecessitatedbythesuddenunavailabilityofASTMNo.1oil.Comprehensiveresearchanddevelopmentwasconductedtoestablishasuitablereplacement.APrecisionandBiasstatementwillbepreparedinaccordancewithPracticeD4483attheconclusionofaforthcominginterlaboratorytestprogramandincludedinTestMethodD471.AlthoughanattemptwasmadetomatchtheeffectoftheASTMNo.1oilonrubberpropertiesinimmersiontestingascloselyaspossible,preliminaryfindingsindicatethatIRM901oilproducestestresultsthatarenotidenticaltotheASTMoilitreplaced.PleaserefertoTestMethodD471,Table1,foradescriptionofthespecificcharacteristicsofIRM901andASTMNo.1oils.TheselectionsforreplacementASTMNo.2andNo.3oilsweremadeonthebasisofanobjectivecomprehensivetestprogramasdescribedinthispracticeanddecisionsonthedatageneratedinthisprogramweremadeinopenmeetingsofSubcommitteeD11.15.TheSAECommitteeonAutomotiveRubberSpecifications(CARS)madearecommendationonthe...
