ASTM_D_5968_-_14.pdf

Designation:D596814Standard Test Method forEvaluation of Corrosiveness of Diesel Engine Oil at 121 C1This standard is issued under the fixed designation D5968;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONThe method described in this test method is based on the gas turbine lubricant corrosion andoxidation test described in Federal Test Method Standard 791,Method 5308.Because this test methodrelates to corrosion in diesel engines rather than in gas turbines,temperatures,metal coupons,andcertain parts of the test procedure were modified to be more appropriate for heavy duty diesel engines.The method described in this test method can be used by any properly equipped laboratory,withoutoutside assistance.However,the ASTM Test Monitoring Center(TMC)2provides reference oils andan assessment of the test results obtained on those oils by the laboratory(see Annex A1).By thesemeans,the laboratory will know whether their use of the test method gives results statistically similarto those obtained by other laboratories.Furthermore,various agencies require that a laboratory utilizethe TMC services in seeking qualification of oils against specifications.For example,the U.S.Armyimposes such a requirement in connection with several Army engine lubricating oil specifications.Accordingly,this test method is written for use by laboratories that utilize the TMC services.Laboratories that choose not to use those services may simply ignore those portions of the test methodthat refer to the TMC.This test method may be modified by means of Information Letters issued by the TMC.In addition,the TMC may issue supplementary memoranda related to the method(see Annex A1).For otherinformation,refer to the research report on the Cummins Bench Corrosion Test.31.Scope*1.1 This test method is used to test diesel engine lubricantsto determine their tendency to corrode various metals,specifi-cally alloys of lead and copper commonly used in camfollowers and bearings.Correlation with field experience hasbeen established.41.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.Specific hazardstatements are given in 5.3.1,6.6,6.7,6.8,6.9,6.10,7.1.1,7.1.2,7.1.5,and 7.4.1.2.Referenced Documents2.1 ASTM Standards:5D130 Test Method for Corrosiveness to Copper from Petro-leum Products by Copper Strip TestD5185 Test Method for Multielement Determination ofUsed and Unused Lubricating Oils and Base Oils byInductively Coupled Plasma Atomic Emission Spectrom-etry(ICP-AES)E691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricantsand is the direct responsibility ofSubcommittee D02.B0.02 on Heavy Duty Engine Oils.Current edition approved May 1,2014.Published May 2014.Originallyapproved in 1998.Last previous edition approved in 2013 as D5968 06(2013).DOI:10.1520/D5968-14.2ASTM Test Monitoring Center,6555 Penn Ave.,Pittsburgh,PA 15206-4489.(http:/www.astmtmc.cmu.edu/)3Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:D02-1322.The research report andthis test method are supplemented by Information Letters and Memoranda issued bythe ASTM Test Monitoring Center.This edition incorporates revisions contained inall information letters through No.131.Users of this test method shall contact theASTM Test Monitoring Center to obtain the most recent of these.4Wang,J.C.,and Cusano,C.M.,“Development of A Bench Test to Detect OilsCorrosive to Engine Components,”SAE Technical Paper No.940790,1994.5For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 2.2 U.S.Federal Test Method Standards:6Federal Test Method Standard 791,Method 5308.7 Corro-siveness and Oxidation Stability of Light Oils(MetalSquares)3.Summary of Test Method3.1 Four metal coupons of copper,lead,tin,and phosphorbronze are immersed in a measured amount of engine oil.Theoil,at an elevated temperature,is blown with air for a period oftime.When the test is c